Bulletins

BulletinBulletin dateReplacement BulletinItem no.SummaryAdded
ENGINE AND ENGINE COOLING
06060200302/01/200610019510Operating characteristics of the electro-viscous (ev) fan clutch and diagnostic tips for cooling fan noise, delayed transmission shifts and/or engine revving too high. *tt03/20/2006
36143614A10018577P0300 due to random misfires not felt - possible accessory pulley. *tt01/06/2006
05060102609/01/200510017818Information on use of bolt extractor tool kit part number en-47702 for removing broken cylinder head or main bearing cap bolts on inline truck engines. *tt12/02/2005
0708200407/08/200410013185Higher that perceived normal engine coolant temperature gauge readings when operating the vehicle in very high out side ambient temperatures and in stop and go or slow moving traffic conditions. *eh04/12/2005
04060300202/01/200410012703Diagnostic information for intermittent vehicle no crank dead battery. *eh03/10/2005
323210011692Misfire at idle cold and possible p0171 and or p0174. *eh01/28/2005
315010010547Cylinder liner replacement information - inline truck engines. *eh12/01/2004
0101200401/01/200410009584High coolant temperature gauge readings during low rpm operation. *tt10/07/2004
ENGINE AND ENGINE COOLING - COOLING SYSTEM
01210301/21/200310005095Engine overheat condition with little or no heater output. oasis *tt01/29/2004
ENGINE AND ENGINE COOLING - COOLING SYSTEM - FAN
30773077A10009677Tick noise at idle. *tt10/15/2004
0167601/01/2004100071884.2 4l60e engine cooling fan contacts shroud after replacing radiator. *mr06/03/2004
0810B01/01/200400810C10005383Tick noise at idle. *tt02/24/2004
31100110/31/2001628066Brief information regarding the availability of an enhanced calibration for engine cooling fan noise and p1484 diagnostic trouble code. *tt03/05/2002
30080108/30/2001625366Information regarding fan noise. *yh11/20/2001
ENGINE AND ENGINE COOLING - COOLING SYSTEM - RADIATOR ASSEMBLY
04150204/15/2002636540Information pertaining to the underhood upper radiator support baffle or beauty cover. *tt11/09/2002
ENGINE AND ENGINE COOLING - ENGINE
06060404809/01/2006100208794.2l ll8 engine flashing and/or mil/ses light. rough idle, misfire. dtc p0300, p0301, p0302, p0303, p0304, p0305, and p0306. *kb01/25/2007
3659A10019182Ses light after internal engine repairs due dtc p0016 or p1345. *tt02/16/2006
05060201210/01/2006050602012B10018986Service engine soon (ses) or check engine light on, dtc p0526, p0480, p1481, and p1484 set. *tt updated. *kb01/26/2006
340510017130Engine is hard to start after filling the fuel tank. *tt10/25/2005
32323232A100148701999 - 2005 gen ii cold engine misfire at idle with possible p0171 and/or p0174. *tt05/10/2005
337110013521Engine no crank no start with possible (dtcs) diagnostic trouble codes p0116 and/or p1682. *tt04/20/2005
328510013373A rough idle, service engine soon light, reduced engine power and diagnostic trouble codes p0507 and p1514. *tt04/18/2005
04060102207/01/200410012109New cylinder bore liner/piston sleeve replacement procedure. *tt02/14/2005
04060200508/01/200410011205Higher than normal engine coolant temperature gauge readings. *tt01/10/2005
315410/06/20063154B10010285Misfire, bump or multiple bumps after a 1-2 upshift. *tt11/09/2004
314201/01/20043142A10010194Broken head bolt repair. *tc11/04/2004
04060101505/01/200410008501New design oil pick up tube and front cover. *mj08/03/2004
0135301/01/200401353A10007937Engine misfire due to injector fretting corrosion. *tt07/16/2004
00156A01/01/200400156B100076564.2l ll8 engine rough idle - run possible p1345 or p0016. *mj *tt07/07/2004
0167201/01/200410007247Oil pan drain plug threads - information. *tt06/04/2004
0202301/01/200410007212Intermittent no crank no start. security light may be on or off. 4.2 ll8 engine. *nm06/03/2004
030601028A10/01/200403060102810005558Information on correct piston usage. *tt updated *eh03/02/2004
00682A01/01/200410005440Perceived high engine rpm transmission slip, delayed upshifts on cold start. sit bulletin 1416476.02/27/2004
00540B01/01/200410005417Engine oil leak at intake gasket. sit bulletin 1412496. *tt02/25/2004
010604052A05/01/2004010604052B10005146On-board diagnostic (obd) system improvements - service engine soon light on, diagnostic trouble code (dtc) p0014, p0116, or p1683 set, delayed transmission downshift and/or excessive fan noise. *tt02/09/2004
030604018A12/01/200303060401810005152Cold idle fluctuation at altitude, hesitation on acceleration or 1-2 upshift delay. *tt02/09/2004
10070310/07/200310004980Intermittent hesitation, stumble or idle stall within minutes of starting after the vehicle has been sitting for several hours. gm voicemail log. *tt01/22/2004
03060405710/01/200310004771Intermittent hesitation, stumble or idle stall after soak, harsh 1-2 shift, slipping 1-2 shift followed by a harsh engagement. *tt01/06/2004
00078F01/01/200400078G10004246Engine knock noise initial startup in cold ambient 10 degrees centigrade/50 degrees fahrenheit. *tt11/24/2003
00817C11/18/200310004241Cold idle stall that occurs during or immediately after evap diagnostics are run. *tt11/24/2003
00817A11/18/2003100041244.2l ll8 engine stall while running evap diagnostics. *tt11/19/2003
06060306/06/200310003695Cracking of an engine cylinder bore liner resulting in engine noise, poor performance and/or stalls with no engine restart. *tt10/28/2003
0301906/01/200310003392Special policy adjustment 03019 - 4.2l bore liner cracking resulting in engine noise, poor performance, and/or stalls with no engine restart. *tt10/17/2003
03060403407/01/200310002943Service engine soon light on, diagnostic trouble code p0135 set. *tt10/01/2003
03060403003/01/2007030604030C10002166Multiple driveability symptoms of long or hard starts, chuggle, rough idle and light or intermittent misfire due to clogged fuel injectors. *tt08/14/2003
03130303/13/200310001910Idle fluctuation and/or hesitation on acceleration. *tt *jb07/25/2003
03060401803/01/200310001267Cold idle fluctuation at altitude, hesitation on acceleration or 1-2 upshift delay. *tt04/25/2003
02060103310/01/200210000169Oil leak at oil pressure switch. *tt02/13/2003
ENGINE AND ENGINE COOLING - ENGINE - GASOLINE
02060101204/01/2002634690Information pertaining to revised harmonic balancer. *tt10/04/2002
009000103/01/2002632320Subject regarding gm oil life system. *tt07/12/2002
07020202/07/2002629762Subject regarding engine damage of replacement engines attributed to debris from the intake manifold being transferred from the original engine. *tt04/05/2002
01060405211/01/2001628817Some owners may comment on the service engine soon lamp being illiminated, a delayed transmission downshift and/or excessive fan noise. *tt03/21/2002
11100110/11/2001627979Information on recalibrating vehicles exhibiting a service engine soon lamp on, a delayed downshift of the transmission and/or excessive engine fan noise. *tt03/01/2002
08080108/08/2001625369Information regarding calibrations available to correct delays in transmission downshifting and complaints of fan noise. *jg11/20/2001
DCS76006/22/2001623467Information regarding ll8 engine labor operations. *slc10/29/2001
29080108/29/2001620850Subject regarding calibrations available to correct unresolved diagnostic trouble code p0014, delays in transmission downshifting and complaints of fan noise. *tt08/31/2001
ENGINE AND ENGINE COOLING - EXHAUST SYSTEM
320910011817Exhaust moan at idle or parking lot maneuvers. *eh02/01/2005
02060103210/01/200210000168Exhaust noise / leak. *tt02/13/2003
ENGINE AND ENGINE COOLING - EXHAUST SYSTEM - EMISSION CONTROL
05060401403/01/2005050604014A10014993Diagnostic aids for diagnostic trouble codes p0440, p0455 and/or p0442 - evaporative emission (evap) system leak. *tt05/13/2005

Consumer Complaints

Fail datemilesoccurencesPurchase date
ENGINE AND ENGINE COOLING
01/03/2012102000
 Tl-the contact owns a 2002 chevrolet trailblazer. the contact stated that the vehicle would shift automatically without activation or warning and at any speed. in addition, the contact would hear a grinding noise when the failure occurred. the dealer made two attempts to duplicate the failure but to no avail. the manufacturer was aware of the failure. the current mileage was 104,370 and the failure mileage was 102,000. the vin was unavailable. kmj
01/03/2012102000
 Tl-the contact owns a 2002 chevrolet trailblazer. the contact stated that the vehicle would shift automatically without activation or warning while driving at any speed. she also heard a grinding noise when the failure occurred. the dealer made two attempts to duplicate the failure. the manufacturer was aware of the failure. the current mileage was 104,370 and the failure mileage was 102,000. the vin was unavailable. bw
12/05/2011
 When i first purchased the vehicle a couple days later i noticed the steering columns ability to turn was very hard and making loud noises. i fought continuously with the dealership to fix the issue and finally after several attempts they agreed to fix it. then 2 months later were driving my son to the airport and the car stopped and began to smoke, come to find out the radiator had a hole in it and there was some type of temporary stop leak stuff put in it to allow a consumer to drive for a short amount of time before the problem would arise again. so now my family and i are out of transportation and im still paying a car note on this vehicle, i feel totally taken advantage of and wonder how any dealer can go to sleep at night knowing they've been deceptive in the saling of a vehicle to a family. the truck is my children and i only way of getting around and its hard enough on me as a single mother, this is just one more problem i didnt anticipate, that was why i use grant money that i received from school to purchase (what i though) was going to be reliable transportation. this situation has really been a burden and hardship for us, especially trying to figure out how were going to get from one place to another..im so frustrated and saddened by the dealerships neglect, non concern, and not properly fixing vehicles before marketing them.i would like to know what i can do about this matter because i brought the car without a warranty and it was used. please help!!!!!!
10/09/201140
 I was driving home from work and started hearing the trucks undercarriage start to rattle and grind on the bumps of the road. i had a sudden loss of power on engine and it wouldnt respond to my pressing on the gas. i believed that i had gas in the truck because the gauge read half full and apparently i was out of gas. so i proceeded to pull into a gas station and as soon as we filled up, the truck would not start! i saw that my check engine light was on and had to ask for a jumpstart to get it started again. at another time and date again the truck went dead, i asked for a jumpstart and the vehicle would not respond. i now had to buy a new battery because the car damaged the original battery and now with the new battery installed my car starts but will not stay on without me pressing on the gas while in park gear. i believe something may be defective with the electrical gauges, fuel delivery system, and suspension.
03/24/2011114000
 Trailblazer sounds like a jet engine with a lot of wind noise. took it to the dealer and found that the fan clutch went bad. not only is the fan clutch failing on multiple trailblazers but chevy made this part so dynamic that the cost is outrageous. also, due to the fan clutch going bad it also damages the serpentine belt.
12/10/200956000
 Tl* the contact owns a 2002 chevrolet trailblazer. when driving she hears a humming sound in the front of the vehicle. the vehicle has not been diagnosed by the dealership. the current and failure mileages were 56000.
07/13/20081
 The fan clutch on this particular model has a long history of failure, repair mechanic has replaced many of these units. this failure causes a loud noise to emanate from the engine and renders the vehicle unsafe to drive due to potential engine overhearting and fan clutch lock-up. *tr
05/25/2008420001
 On 5/25/08 engine quit. towed to garage. ran diagnostics,compression tests # 3 cylinder bad -no compression. garage gave me a copy of chevrolet bulletin no. 03019 says engine bad on 01 and 02, 4.2l engines. mike's garage ( ase certified- master mechanics, jeff-813-988-5689) said take to chevrolet - had it towed autoway chevrolet, tampa, fl. gave them the bulletin - got a call from jacin hogeland (service) a piece (the end) of the spark plug broke off and went into the cylinder- engine is shot. not under warranty. jeff, mikes garage says they pulled the plugs, did compression check and no plugs were broken. the plugs are the original ones from chevrolet and are guaranteed 100,000 miles. the trailblazer looks new, garage kept, driven weekends, has 42,000 miles. chevrolet wants $6,500.00 for new engine, $5,000.00 for used one. have called chevrolet, complained, they say well, not same problem listed in bulletin. it's the spark plug. i say spark plug supposed to last 100,000 miles-fix it. they said they would get back to me on 6/4 or 6/5. today 6/3/08 received a telephone call jacin @ autoway, want me to authorize them- pull the head to find out exactly what happened to engine. said thought you told me what happened. he said , chevrolet is going to need to know before they talk to me. i said i thought you made a determination. his answer is they need to know what happened, before they can make any settlements. i asked what happens, if they still say spark plug and no warranty. his answer was would cost me $1,400.00 to have head pulled. i would still have to buy engine for $6500 or $5000 used. i said if not covered i would have mike's garage do the work. he said that i would be liable for $1,400.00 to pull the head. what is going on here. i look on the internet and there complaints all over about the engine, yet no recalls. just a bulletin that this what chevrolet will do. *tr
05/12/2008894311
 2002 trailblazer suddenly started making loud noise as if a jet airplane and delayed transmission shifting, along with loss of power. took it to mechanic and they replaced fan clutch to the tune of 730.00. *tr
12/14/200760000104/20/2007
 Engine skipping, 4.3 litter, number 4 cylinder spark plug coded with oil, no compression. 60,000 miles upon dealer taking apart said 11 out of 12 head bolts were cracked and broken. said if he cannot get out the bolts we need to buy a new engine at our cost. no warranty assistance. either head bolts were over torqued at the manufacture or bolts were made out of defective material.*cn
10/20/2006113000101/14/2003
 Our motor came to part. we've only had a few visits to the dealership which was not recorded. when we notified the dealership he gave us papers of a special warranty put on our vehicle. one that last until 100,000. problem being we've never received one page of this. we have a 2002 chevy trailblazer. *jb
11/11/2005101/22/2002
 Tie rods, multiple transmission module problems, airbag, taillights, stop, turn signal rear problem, electrical/ wiring,radio, hvac, pressure control,2 batteries, 2 fan clutches, among other problems. *jb
11/29/20043500020011/26/2004
 Sharp turn steering locks up. passenger seat belt gets tighter and tighter doesn't release pressure. 4 wheel drive not working . tapping sound in engine. the only thing the dealer has done is replace power steering pump and within 5 miles it was not working again. *jb
02/24/20051
 2002 chevrolet trailblazer caught on fire in the engine compartment. *mr while on the highway, the vehicle would not accelerate, subsequently smoke and flames had come from the hood which was caused by the defective motor. the consumer requested reimbursement for the cost. *sc *jb
12/01/200310
 Numerous problems. car stall 3x , battery went out, windshield wiper worn and tail light out, considered not safe. *bf the vehicle was hit in the rear. the dash system went out and the vehicle idled rough. *sc
05/15/200423000708/20/2002
 I have a 2002 chevy trailblazer. in recent months it has suddenly stalled numerous times, on street driving at approximately 30 mph, and at highway driving at about 65 mph. during the highway stall the car lost power steering and braking control and was fortunately steered off to the side of the road, with great physical effort since the power steering was lost. the stall causes an abrupt stop of the car without warning. i have had the car in for testing and repair at romano cheverolet in syracuse, ny as well as curry cheverolet in scarsdale, ny. neither shop has been able to diagnose or repair the problem since the car's computer is not registering the stalls. they replaced the fuel filter several weeks ago but the car suddenly stalled on me in normal street driving at 30 mph a few days later. i have spoken to cheverolet customer service and they say they are investigating the problem. i have sent copies of nhtsa service bulletins on this car to curry cheverolet but they claim they are not applicable. the service bulletins clearly state that there are problems with stalling due to an engine and engine cooling problem, but curry cheverolet claims that my engine is fine and that the nhtsa service bulletins do not apply to my car. however, they can't fix it. i have suggested to curry cehverolet that the car computer is defective and needs repair or replacement since it has not registered the numerous stalls. however, they claim that the computer is fine, even though it is not registering the stalls and what they are caused by. the people i have spoken to at curry cheverolet are the dealership manager, mr. conte, and the repair shop manager, dennis. i have spoken to duane cox at cheverolet customer service, and his manager ms. patricia frey. mr. cox's phone number is 866-952-4368, extension 57020. ms. frey said i could reach her via mr. cox, her assistant. the cheverolet customer service reference number for my car is: 1-219-824-950. *la
04/06/2004195328
 While driving 40 mph, the engine light illuminated, then the vehicle stalled. this caused the consumer to lose control of the vehicle, hitting a wall. the consumer had the vehicle towed. the dealership tried to repair the vehicle 7 times, but did not resolve the problem. the air bag also failed to deploy during the accident. *ak the pcm failed due to a circuit inside, fluid leaked from the power steering hose, the engine revved high and was loud when the vehicle was started, the consumer saw sparks under the hood fuse block at the same time the gauges fluctuated and shorted, the right rear tail lights were inoperative, and the fuel gauge made a whirring sound when the vehicle was started. *sc *jb *cb
07/15/200322000
 It appears the truck is suffering from a major computer defect. with all fuses in tact, many functions no longer work (remote access, radio functions after ignition turn off, automatic volume increase on radio when accelerating). additionally, the 4x4 torque converter switch does not light up and appears to be nonfunctional, the airconditioning quits and after alleged repair, stays on all the time regardless if set to air or vent, the rear hatch is defective and can't be opened, the tail lights have burnt out three times and two headlighrs have burnt out.
05/15/20030
 In november of 2002, jn automotive has reversed the odometer on my vehicle and i believe they are in violation of the federal odometer law. i just want to find some resources that will help me resolve this situation.
07/15/200321000
 My vehicle has been in the shop for these reasons and more. faulty back light- dvd systems. on top of all these it has had three recalls in the nine months i've owned it. bought it new!
02/29/2004170002
 Engine check light came on while driving. vehicle was taken to a dealership but dealership indicated they didn't know what component failure caused the engine check light to come on. dealership serviced the vehicle and the consumer picked it up. the engine check light came back on within 2 weeks. vehicle was taken back to the dealership. when the consumer picked the vehicle up there was a clanging noise while driving.*ak
10/07/200315500111/29/2001
 G.m. sent notices to costumers in june 2003 of possible engine cylinder problems in early 2002 chevrolet trailblazers. this pboblem is quite serious and has in the pistons, develop a knock or slap.this can and does cause damage to cyl. walls and other internal parts. g.m.has offered to replace pistons only.this is not what should be done in a vehicle with only 17,700 miles.itis my feeling the engine should be replaced .g.m. does not.i have spoken to chevrolet customer and was told only pistons would be replaced.this would involve nearly if not completly rebuilding the engine.this is not acceptable to me as i belive i an intitled to have the engine of a new vehicle not a rebuilt engine acceptable for an aged vehicle. *ak
07/23/2003470001
 While driving at 70 mph odometer dropped, causing the vehicle to slow down to 10 mph. dealer notified. *ak
02/18/200249282208/13/2001
 Problems with air bag dash light, fast engine idle, air conditioner, rear hatch inner strap broke, etc...*mr the airbag light was intermittent. the sir module was replaced, and there was poor terminal connection at the sir wiring harness, and was traced/repaired on the left side impact connector and the codes were cleared. the engine idled fast(especially at start up, and the fuel mileage was 13 mpg. the results of the evaluation and repairs were: passenger impact connector was loose(repositioned/connected), idle within specifics, the emblem had fallen off, the rear hatch inner strap had broken, the transmission seemed to take long to shift into gear(happened sometimes when cold), and the pcm needed to be reprogrammed(j6355 power train controller pcm). there was a thumping sound in the rear differential when shifted, the a/c would blow out cold air when the a/c indicator was off, hot air would come out of the defroster area on the dash when the indicator was set for heater on the floor, the engine made a tapping sound, the lift gate weather strip had come apart, and the battery kept losing charge(3 occurrences). *scc *jb
07/01/20021000010/25/2001
 Engine stall - truck stalled and all lighting and components went dead while slow to stop at an intersection. the truck could not be re-started. after 10 minutes, the truck started again and was able to drive on. subsequent attempts to start the truck failed resulting in it being towed to the dealer. the dealer had to replace one of the computers in the truck and it has been fine ever since. i heard about the investigation for the envoy and bravada but not the trailblazer. my truck is a trailblazer and did experience the same problems as the two sister trucks that share the same mechanicals.
12/24/200211040310/17/2001
 The engine made a rumbling/clicking sound, shut off suddenly, the power steering had gone out, and the power brakes failed. the dealer determined that the engine needed to be replaced. ts
ENGINE AND ENGINE COOLING - COOLING SYSTEM
12/30/2010170000
 I have a problem with my fan clutch. transfer case and suspension problems
04/01/200945000
 The fan clutch on my 2002 trailblazer have been acting up and not working properly for quite a while. from the initial startup of the vehicle , up to traveling speed of 55 mph the load jet noise, fan clutch reving can be heard. the reving up, jet noise, and lack of power from the engine and no acceleration when needed. service engine light has come on several time p0495. seems as though the problem has slowly got worse over the past year. finally had to purchase a new fan clutch from automotive business and replace the part. a simple 5 minutes search of the problem on the internet showed a very eye opening reponse from several hundred other owners of similiar trailblazers with same exact problem. the fan clutch was replaced with a new one and the old fan clutch is still available if anyone needs to see it. the loud engine reving fan noise/like jet engine, used to happen every few days, but then it became a daily problem , hence the concern to replace the part. bought the vehicle two years ago with 36000 miles on it and it has 56000 miles on it now. for your information of the other hundreds of owners with similiar problem, here is the link. http://www.carsurvey.org/reviews/chevrolet/trailblazer/r64655/comments/
07/22/2009650001
 My heat gauge would show fast rising temp. of the engine. the dealer did not believe me when i told them it must be the temp. sending unit. they said they never go bad....called later to say it was the heat sensor, replaced it, tore the thermostat out of my trail blazer, said it was bad [i don't think so], replaced it and then said i needed to have my seven computers reprogrammed so the car would run right.[i didn't believe that either]. since everything depends on computers to diagnose everything, i had to have them do whatever the dealer said. so, i feel that i was ripped off for unneeded parts and service...to the tune of $750. what a rip off ! ! ! ! *tr
04/05/2009570001
 Have owned a 2002 chevy trailblazer for three years when i purchased it made a load fan noise but it went away after a few feet now it makes the sound all the time chevy needs to call them back before someone gets hurt or killed when the fan explodes it will happen the fan is plastic and can only take so much rpms chevy you should do this before you have a law suit. *tr
02/01/20091040001
 The cooling fan clutch in my 2002 chevy trailblazer has gone bad. there have been many other reports about this part failing on these vehicles. causes decreased power, increased rpm's, and may cause engine destruction. *tr
07/25/2007700001
 When turning on my chevy trailblazer..sounds like a jet airplane taking off. had it replaced last year (2007) and it's starting to do the same thing. i was told that the original fan clutch had some sort of upgrade or was it just defective? *tr
10/27/20081100001
 My service engine soon light came on today and i brought it in to be put on the diagnostic machine. it is reading error code po495 cooling fan circuit error. after researching online i found that it is generally a problem with a faulty fan clutch. and that this is a very common problem for my vehicle (2002 chevy trailblazer). the site i visited had 279 pages of comments on this problem! statements made were that if the fan clutch malfunctions it can explode causing more damage. *tr
11/10/2007450001
 Engine revs with no power, fan clutch stuck on . started when vehicle was new. progressively worse and had to be replaced at 50,000 miles. six months later problem back. *tr
06/03/2008828471
 I own a 2002 trailblazer ls. the vehicle has acquired approximately 82,800 miles. on a least five separate occasions, while covered under factory warranty, the vehicle was taken to midway chevrolet located at 5915 montana ave. el paso, tx., due to recalls and various other mechanical problems. on at least two occasions, the vehicle was taken to midway chevrolet of el paso due to an unexplained high engine noise and a light engine warning light. on each occasion, i was told by the midway reps. that nothing was wrong with the vehicle. they simply reset an electronic component which turned off the engine light warning indicator and eliminated the high pitch noise. the vehicle worked fine for a short period, then the high engine noise returned, and so did the engine warning light. i simply grew tired of going to the dealership, therefore continued to run the vehicle with the high engine noise and the engine warning light. today, i received news from said dealership that the high pitch engine noise and the engine warning light is, and has been, due to a cooling fan clutch assembly. this non-stop mechanical problem now keeps me from a texas state inspection sticker. to repair this problem, they tell me, will cost over seven hundred dollars. this should have been repaired while under warranty. they had several opportunities to remedy this problem. they failed to honor their responsibility. now, i am unable to, legally, drive this vehicle anywhere in the state of texas. from recent information gathered, this problem is all to well known to chevy and gmc, yet they have done nothing to correct this problem. i wish to register a complaint against chevy and midway chevrolet of el paso for their failure to repair the cooling fan assembly problems when they surfaced and while under factory warranty. joseph e. gaines *tr
12/19/200782000110/21/2001
 The electrical gauges on our 2002 chevy trailblazer did not function properly when the fan clutch failed, leading to engine overheating. the overheated engine blew the head gasket before the engine itself blew up. my husband was had just backed out of the driveway and had driven about 200 yards when this happened. it is important to note that warning systems malfunctioned: there were no lights, bells or any indication that complete engine failure was imminent. there wasn't even the odor of an overheated engine. if this had happened on our local freeway i could be suing gm over my husband's injury or death. *tr
10/30/200740000208/01/2002
 At about 40,000 miles it started making a loud roaring noise at start up until you get about a mile down the road. i changed the plugs and air filter at 60,000 and the noise seemed to go away. it was soon replaced with a squeaking noise from the belt area. i took it in to have the belt replaced and $90 later that didn't fix the squeaking noise. after a little research on the web i found out about the fan clutch problem and the water pump bearings were going bad. so i replaced the fan clutch and the water pump myself for $300. the roar is not as bad now but still there, shifts abnormally, and now at 60 mph it jerks forward and rpms go from 1500 to 2000. i researched more on web and found that after changing the fan assembly you must get the pcm updated. i called the local dealer (maroone) and they want $104 to do that. any information would be greatly appreciated. *tr
07/15/2006750001
 Fan clutch has/is failing. hangs and doesn't always release even if vehicle has been sitting for days. no 'logic' as to when it chooses to disengage. no engine fault light. is as likely to be fully engaged on a cold morning as a hot day. affects mileage and by inference emissions. this is a chronic trailblazer problem per my mechanic and web complaint evidence. *nm
06/16/200555700202/10/2002
 While driving to lax airport after rounding curve to get off on airport ramp, tranmission failed. vehicle would not move. local airport police assisted to get me towed ($45) to police lot. notified onstar and was towed to closest chevrolet dealer, albertson oldsmobile chevrolet in culver city, california. after three days the dealer had not even looked at the vehicle. i then ha car towed to aamco transmission in orange california where after less than 24 hours i was informed transmission was completely burned up. a pump had failed and the inside of the transmisson assembly was filled with metal shavings. in october of 2003 the transmission had failed and the car had to be towed to gateway chevrolet in la mirada, california. car was repaired. i have also had many other problems with this vehicle including brake lights, windshield wipers, heating & air conditioning system.
06/25/200446850102/28/2004
 While driving appox 50 mph, got hung in traffic. all of the sudden my engine coolant hot warning lamp came on. i pulled off and had to call my father to come get me. he added a small amount of water to the system. the car drove fine for the next 10 miles. after driving again for about 30 miles, it began to over heat again. pulled off and let it set for about 30 minutes, once again added a small amount of water. drove fine for the next couple of days. my husband and brother flushed the cooling system and added dex-cool. drove fine for a day or so when it began overheating again. parked the car until the following weekend when my husband flushed the cooling system again. ran fine again for a couple of days. all of the sudden it started overheating again when i noticed that it occured during stop & go traffic, but when moving, the car would cool back down. my husband then replaced the clutch fan. worked fine for one day when it bagan overheating again. took the car last week to a dealer where they checked the code and it was wrong, so they entered the correct code. worked fine for one day when it started overheating again. don't know what it wrong with this thing!!!*ak
09/10/2003506/10/2002
 Transmission went out couldn't drive-repaired/ rear window won't roll-up/seatbelt won't retract, later fixed, but still won't work on occasion/ brake lights have gone out 5+ times repaired still not operational/ water pump exploded/rear window won't lock first try/ check engine llight stays on. *ak
08/28/200211/29/2001
 Air/heat vents have a really bad odor. the dealer has cleaned and spray something in them and suggested i do the same. i have done so. this causes a severe smell in the vehicle for a couple of days that makes occupants sick, then the smell will disappear completely for a couple of weeks then return. the dealer says that it is some type of mold or mildew in the vents. this has been happening for several months.
06/10/2003501/28/2002
 I bought a 2002 chevrolet trailblazer lt new about 10 months ago the truck has been in for service many times for different things as for seatbelt looking up and wont release,brake lights failing,derectionals that blowout every few days,radio/cd player wasnt working,leakage of water everytime it rained etc etc.. anyways i just took it back on 6-9-03 for seatbelt to be done again and for the derectional that failed again and also to have truck inspected i picked it up later that day and found that the inspection sticker had a wrong vin # on it and that other work was done i left there knowing they said they dont know why the light in derectional keeps failing but they did change the bulbs { this is everytime i bring it this is all they do to fix it} on 6-10-03 the derectional wasnt working again my husband changed the light bulb this time due to the fact it takes me almost 40 mins to get to dealership .....i will be going to the dealership to ask for a copy of the history on truck and will be getting a lawyer involved and also contact the dealers commintion and channel 12 on this matter .....i payed almost 30,000 for a truck that is not worth it and i am a very unhappy costumer ..*ak
ENGINE AND ENGINE COOLING - COOLING SYSTEM - FAN
04/05/2008870002
 Tl*the contact owns a 2002 chevrolet trailblazer. while driving at any speed, the contact heard a loud roaring sound coming from the engine. afterwards, the rpm's will increase to 3 or 4 and remain there for a while before decreasing. a mechanic stated that the fan clutch needed to be replaced. the purchase date was unknown. the current mileage was 89,000 and failure mileage was 87,000.
03/12/2008969001510/15/2001
 Just as many other 2002 chevy trailblazer owners have found, one day there was a loud fan noise when accelerating, reduced gas mileage, and a lack of ability to accelerate that lasts for about a mile. after a few minutes of searching on the internet it is apparent that my problem is the fan clutch, tsb 060602003, nhtsa 10019510. it appears that thousands of owners are having the same problems and have been for years but there is still no recall. although this problem is intermittent at this time it almost caused a serious accident the first time it happened. i was merging onto a highway and couldn't get the engine over 30 miles per hour. we were nearly rear-ended. i have copies of at least a thousand internet complaints with the first one posted around november 2001 --- just about the time we purchased the vehicle new. (if you don't know it already there are websites just for the purpose of complaining about the chevy trailblazer!!!) i can't believe that gm would turn away from it's customers like this! i certainly doesn't make me want to purchase american made again! *tr
12/19/200782000110/21/2001
 The electrical gauges on our 2002 chevy trailblazer did not function properly when the fan clutch failed, leading to engine overheating. the overheated engine blew the head gasket before the engine itself blew up. my husband was had just backed out of the driveway and had driven about 200 yards when this happened. it is important to note that warning systems malfunctioned: there were no lights, bells or any indication that complete engine failure was imminent. there wasn't even the odor of an overheated engine. if this had happened on our local freeway i could be suing gm over my husband's injury or death. *tr
02/05/200890000203/16/2002
 Loud roaring noise that sounds like a jet plane. was intermittent, but now constantly. the noise is even louder when you accelerate. the fan is turning at an astronomical rate of speed and gas mileage now is only about 9 mpg. right before this constant jet plane sound started, the battery blew up. yes, blew up! and the truck would die if the a/c was turned on. the dealer told me it was the water pump and the pulley and belt also need to be replaced. i have no idea what a water pump has to do with any of this, but $711 later i still have the problem. *tr
08/08/20071125001
 - 2002 chevrolet trailblazer - trailblazer ascender cooling fan clutch & speed sensor assembly. - loud noise coming from cooling fan. while under warranty was told by dealer that the noise was normal and that there were no problems. after warranty expired the fan clutch failed and was then told that the noise was not normal and that this suv has a major problem with the fan clutch. dealer stated that even though this is a part with a very high failure rate it is not a recall item. *jb
06/27/200757500105/15/2004
 I got in the car to go to work the other day and as soon as i put the car in drive and stepped on the gas it made a loud fan noise that made the car sound like an airplane taking off. this was the first time the car had ever made that noise. i drove the car around that day before getting it to a mechanic. the mechanic said it was the fan clutch that needed to be replaced. i believe they said it was an electronic relay, which was why it cost $600 to replace. the suv was a 2002 model and had 57,500 miles on it.*ak
11/02/200609/10/2004
 Doors rattle and shift while driving down the road. the windows also rattle, particularly on the drivers side, front and back. also, the air/heat blower is stuck on #4. it won't blow on any other settings
04/01/20071
 I had the fan clutch replaced on my 02 trailblazer at 75,000 miles. the clutch fan sticking, making a very loud roaring noise that the dealership calls normal. the fan had been doing this virtually since new purchase, but only occasionally and always went away quickly. nothing i could demonstrate to the service department. until it failed. *ak
12/24/2006121381107/08/2002
 I own a 2002 chevy trailblazer and recently experienced loud, roaring noise from engine coupled with reduced power and very poor gas mileage. took the vehicle to a dealer and confirmed the fan clutch had failed. dealer quote was $637.50 to repair. i ultimately purchased the part online and had it installed by a local mechanic and saved myself around $260. vehicle runs fine now. i cannot believe gm has not issued a recall for this issue. a simple internet search will return hundreds of posts related to the fan clutch failure. very disappointing. *nm
11/06/200665500104/06/2004
 Dt*: the contact stated while pulling out of the driveway at 5 mph, a loud noise was heard. the vehicle was driven to the dealer who determined the cooling fan needed to be replaced.
07/10/20064600010010/18/2004
 My 2002 trailblazer sounds like a jet engine when preparing to start out in the drive position at all times no matter when speed you start out in. the auto mechanic i took it to several times said it would cost hundreds to replace the clutch fan to see if this would fix the problem possibly more and it is using way too much gas now. *jb
09/06/2006106000103/13/2004
 Dt*: the contact stated after starting the vehicle, the fan clutch would not disengage. the dealer determined the fan clutch needed to be replaced. *ak
07/21/200647778110/31/2001
 When i first bought my 2002 trailblazer, the fan clutch would occasionally be fully engaged when i started the truck in the morning. it usually resumed normal function within a mile or so. as of yesterday, it will not disengage and the check engine light came on. it sounds like the labor to replace this clutch is very high. i'm not sure if i dare tackle this myself, but the thought of paying $700 to replace something that shouldn't fail at 47,000 miles is disgusting. *nm
06/14/2006521002511/01/2001
 2002 chevy trailblazer has a serious fan clutch problem. vehicle has 52,000 miles. the clutch fan stays engaged at any speed, vehicle will suddenly loose acceleration and also gets poor gas mileage. check engine light eventually came on about 2 weeks after the vehicle stated to sound like a tank. will take this to a local mechanic as based off of the amount of complaints on the web with other people having the same problem, and the dealer charging $700.00 to repair when the part can actually be purchased locally for $229.00. there are definite problems with this and based off of all the other complaints gm is well aware that there is a problem, and will do nothing about it. *jb
06/27/20061
 Own 2002 chevy trailblazer which i purchased used in may 2004 with approx. 35-37,000 miles on it. driven on highway 5 days a week 61 miles round trip to work. vehicle developed loud roaring noise, poor acceleration, increased gas usage within the last year which initially was occasional but as of yesterday became non-stop. service engine light came on. nearly hit from behind due to inability to accelerate when merging into traffic. diagnostic code po495 which ended up being fan clutch. part at parts store was 217.99 w/tax. afraid to take to dealership as multiple other owners with same problems paid $600+ for repairs with majority being labor. frequency of fan clutch problems by other owners makes it apparent it should have been a recall by gm. *nm
11/01/20055500050011/01/2001
 Engine fan noisy... runs too fast/high. a couple mechanics have said fan clutch is the problem and needs to be replaced. transmission doesn't seem to shift smoothly... and seems to be related to this engine fan speed. *nm
11/28/2005150001503/12/2002
 The fan clutch on my '02 trailblazer is starting to go bad, with engine roaring at intermittent times, per the dealer, who refuses to warranty it, even the vehicle has less than 17k on it. it is out of warranty by 8 or so months. gm has sent the wrong message. called chevy, their ears are closed although they offered a maintenance deal if i would say i am satisfied. such a deal since their service prices are sky-high. unacceptable. *jb
02/06/200679500108/31/2003
 Fan clutch totally failed. no prior warning, fan clutch failed causing the trailblazer to lose ability to gain speed/power. *jb
11/08/2005700001
 My 2002 trailblazer with 70,000 (just outside of warranty) has a bad fan clutch. the dealer is trying to charge me $500 for a part that costs $230 at multiple local parts stores. my complaint, however, stems from the fact that a 5 minute internet search yielded 8 other trailblazer owners who have had this exact problem. all 8 of the cars has less than 80,000 miles. this is obviously a problem that gm needs to react to and issue an optional recall. *jb
08/16/200557520106/29/2002
 Thermostatic-controlled clutch on radiator cooling fan was not disengaging and service engine soon warning lamp was lighted. on-star service probe confirmed problem in power train/cooling system. dealer confirmed defective cooling fan clutch and replaced fan clutch assembly. this is a suv that rarely sees travel off of paved roads. all service performed at dealership. cooling fan clutch should not be failing at 57,520 miles. goodwill warranty covered most of repair expense. *jb
07/17/200565000205/06/2003
 4 w/dr light goes to 4hi/ all wheel dr/4 low without warning at anytime. the computer mode was replaced once under warranty at the moment it doesn't seem to be actually shifting. also had a loud jet sound coming from the engine as if it was laboring and had to have the fan clutch assembly replaced @ a cost of over $800.00 . *jb
07/19/200551200106/16/2001
 1) since owning my 2002 chevrolet trailblazer, on occasion, the car would drive and sound like a semi (loud and heavy when i accelerated). 2) july 19, 2005, with 51000+ miles, the suv continually was loud and heavy when i accelerated. finally, the engine light came on. 3) i took it to a shop and the mechanic said it was the electric fan clutch and he had seen it brake down in several trailblazers. cost to replace: $732.33. i still have the old part if you need it.
02/25/200561024102/18/2002
 2002 trail blazer transmission wasn't changing gears, wouldn't go over 30 mph ,sounded like an airplane on a friday night without a vehicle until monday service department wasn't open on weekend dealership installed pressure control solenoid on valve body, filter and pan gasket and replaced cooling fan clutch with a cost of $961.78 mileage 61,024. *ak
02/03/200549972107/29/2001
 Engine cooling fan clutch stuck engaged, causing engine service light to come on. dealer(moritz chevy) charged $725 for repair of which $400 was labor.*ak
11/12/2004660002605/25/2004
 2002 chevrolet trail blazer 67180 miles. failed cooling fan clutch. www.mycarstats.com indicates others have the same problem. gm turns a blind eye. cost to repair is just under $600. the fan runs constantly. it is a design failure. i will never buy a gm vehicle again and i will urge all the people i know to never buy gm again.*ak
10/29/200320
 Clutch fan is causing vehicle to be sluggish on take off. makes a loud roaring noise, burns more gas. *jb
04/14/200453362108/15/2001
 The clutch fan on our chevrolet 2002 trailblazer went out and the fan stayed on. it resulted in reduced engine power because the fan was pulling so much power from the motor. when our mechanic called for parts, the chevrolet dealership had 15 on stock. apparently chevy is aware of this problem but has not recalled it.*ak
06/25/200446850102/28/2004
 While driving appox 50 mph, got hung in traffic. all of the sudden my engine coolant hot warning lamp came on. i pulled off and had to call my father to come get me. he added a small amount of water to the system. the car drove fine for the next 10 miles. after driving again for about 30 miles, it began to over heat again. pulled off and let it set for about 30 minutes, once again added a small amount of water. drove fine for the next couple of days. my husband and brother flushed the cooling system and added dex-cool. drove fine for a day or so when it began overheating again. parked the car until the following weekend when my husband flushed the cooling system again. ran fine again for a couple of days. all of the sudden it started overheating again when i noticed that it occured during stop & go traffic, but when moving, the car would cool back down. my husband then replaced the clutch fan. worked fine for one day when it bagan overheating again. took the car last week to a dealer where they checked the code and it was wrong, so they entered the correct code. worked fine for one day when it started overheating again. don't know what it wrong with this thing!!!*ak
07/30/200447400202/28/2003
 Two weeks ago the clutch fan on my 2002 chevrolet trailblazer engaged before i left the house and never disengaged on a 15 mile trip to and from work with varying speeds (as low as residential, and as high as 70 mph). this is highly unusual for it to 'stick' in the engaged position. usually it engages on a cold start and is off within a minute or two. i went so far as to turn off the a/c figuring this could trigger the command to engage the cooling fan. i called the dealer i usually have my work done at, and they just said to bring it by. on the approximate 25 mile trip from my workplace to the dealer, at some point the fan decelerated from the 100% engagement i had been experiencing for two days, it illuminated the service engine soon (ses) and the cruise control failed (it was in use at the time, and was dangerous in that it suddenly decelerated on its own at highway speeds). the cruise control was not functional at all. upon arrival at the dealer, the fan had seemed to resume normal speeds, i relayed what had happened on the way here, and they hooked up the tech2 device, read the codes, cleared them, turned the light off, and then went on a test drive. no defect was noted and everything went for approximately one week. currently, the fan engages itself to 100% at nearly all times except at high rpms or at highway speed. this occurs whether the a/c is on, whether it's a cold start, or a warm start. i can drive 20 miles on the interstate, and on roads at 40 mph the fan will slowly engage itself. at 40 mph there should be enough ram air cooling. if i accelerate at a rapid rate, keeping the rpms high, the fan slowly disengages...but rengages shortly after the acceleration is ended (downshift, deceleration in speed, etc). this has become troublesome as it is surely causing excess wear and tear on the engine, is wasteful in that it causes outrageous fuel consumption, and is dreadfully loud on acceleration. currently, it has not turned on the ses light.*ak
02/28/200450000211/21/2002
 Trailblazer service engine light on, engine reving, seems to be fan clutch stuck in high speed, causes poor acceleration, poor gas mileage, and costs over 500 dollars to repair. dealer in small town states they have replaced several in the same year model truck. due to the high cost of this repair, i am forced to drive my vehicle until i can come up with the money to repair it. hopefully it will not damage any other parts in the mean time. there seem to be several complaints that deal with this same thing. also, the rear brake lights keep going out .
22000410/15/2001
 The fan clutch was not operating properly which caused the vehicle to overheat. please provide further details. *jb
04/04/200230008
 Cooling fan had intermittent problems of racing when you stepped on gas, now cooling fan is racing constantly. i have been told by the dealer and chevrolet that a new part has to be designed. no one knows how long this will take. i have been told vehicle is safe to drive, however it certainly does not sound like it and i have been stopped by police thinking i am racing engine or driving unsafely.*ts *nlm **dimsii ivoq entry posted after 12-12-02 cut over to artemis**770110
01/08/200328750101/05/2002
 I have a 2002 trailblazer with a air condition problem the truck has been to the dealership twice. the dealership has told us to spray the trailblazer with lysol in the air condition vents in oder to keep the meldow smell from coming back into the truck ,they are refusing to replace the air condition.
ENGINE AND ENGINE COOLING - ENGINE
09/01/201093000
 Car idle would go crazy at stop signs and rd lights. during take off idle would plunge and car would stall or come very close to stalling. took it to dealer and they could not fix it since no codes showed up on computer. i took it to another shop and the problem was the throttle body and cam position sensor.
08/24/201085000
 Tl- the contact owns a 2002 chevrolet trailblazer. while traveling at any speed the contact noticed that the front end of the vehicle was making a loud hissing noise. the vehicle was taken to a local mechanic where the contact was informed that the fan clutch needed to be replaced. there were no prior warnings and the vehicle has not been repaired. the current and failure mileages were 85000. bml
05/04/2010150247
 2002 chevrolet trailblazer ltz - oil pressure low light comes on and pressure guage goes from 40 to 0 when vehicle is idling.
11/25/20081220351
 1. transfer case seized - 4wd failure while driving 2. fan clutch failure - vehicle does not operate properly in a number of ways. *tr
09/04/2008861931
 Ses light on. brought to local repair shop and dealer, which both verified a p0304 code indicating a misfire on cyl 4. i decided to change spark plugs and found water in the upper cylinder around the spark plug and the spark plug coil from cyl 4 was corroded. replaced plugs and cleaned coil as best i could. i found a tsb indicating that this is known problem and dealers are told to install a seal to stop water from draining on to the engine. i called chevy customer service but the refused to cover the install or the repair. *tr
04/04/200872000
 Tl*the contact owns a 2002 chevrolet trailblazer. the contact stated that her engine has been ticking and making whining noises during acceleration, and performing very poorly. the service engine soon light illuminated intermittently. the contact took her vehicle to her local mechanic and they stated that the engine needed to be repaired. she was able to locate a dealer's special policy related to service bulletin number 060603. the dealer and the manufacturer informed her that a diagnostic would be needed to determine the cause of the failure, which would cost approximately $2,800. the contact stated that she takes her vehicle to the dealer for routine maintenance as specified by the manufacturer. the vehicle has not been repaired. the failure mileage was 72,000 and current mileage was 75,000.
12/19/200782000210/08/2001
 To gm service assistance, our 2002 chevy trailblazer is at connell chevrolet in costa mesa, ca having a new engine installed at a cost to us of approximately $7,000. the vehicle has 82,000 miles. we have been without the use of the vehicle since december 19 when it became inoperable going down our street. the only sign of trouble was a massive amount of steam coming out of the exhaust pipe. the heat sensor malfunctioned ($7000 malfunction). there were no warning lights, no bells, no alarms, no indications of any trouble...and then...nothing. my husband had the car towed that night to connell chevrolet. on december 27th we visited connell to get the full story. apparently the head gasket blew again (see attachment 1), and since the heat sensor wasn't working properly, the engine overheated and blew (again, no sign of any trouble before this incident). now we are without a car and have a $7,000 repair bill. no one i know has ever heard of two head gaskets going on a vehicle of this age and mileage. the first gasket went at 39,000 and the second at 82,000 miles....hmmmm. to us that indicates that there is a defect in this vehicle, and we want to know how you are going to assist us. *tr
07/03/200774500108/30/2005
 I own a 2002 trailblazer that stalled for no apparent reason. i did not understand it because one day it will stall at every single red light or stop sign and then the next day it will be fine. when i start to slow down at a stop sign or such the needle in the rpm gauge goes nuts and the vehicle starts to kind of buck a little and then idles really low or it will rev itself up to about 3000 rpm. so when i get to the stop it just shuts off, no lights come on in the instrument panel or nothing. most times i just put it in park , turn the key to the off position and then start it back up. runs normal then, well maybe until the next stop. only one other time did i go to start it back up and it wouldn't start but only for a second and then it did start. also, it revved while i wa s just driving normally. it has had numerous other problems so when i took it to the chevrolet dealer i purchased it from for another problem as well as me telling them about this, they had overnight, said they took it for a drive and nothing happened, which i told them that it doesn't happen every time you stop or every day. they also said since no service engine lights or anything came on they couldn't tell what the problem is when they put it on the diagnostic machine. so i have no clue what to do but to keep driving it and maybe someone will rearend me because it stalls in the middle of the highway. i feel half afraid to drive it anymore. *ak
07/20/2006418291008/16/2002
 There is a loud roaring sound from under the hood. (sounds like a jet engine.) vehicle dealer says that vehicle has a bad cooling fan clutch and that the related computer software needs reprogramming. this loud noise problem used to only happen when the vehicle was cold and would go away after about a half mile. vehicle appears not to shift properly (automatic transmission) and the vehicle does not accelerate well while this loud sound is present. sometimes now the problem occurs when the vehicle is warmed-up. the loud noise goes away after a short while. *nm
05/30/2006302/12/2003
 Transmission does not shift smoothly and the vehicles seems to skip when driving, had checked and was told the transmission needs servicing. also, several times the car has jumped from 2wd to 4wd on its own, while being driven. thankfully only when going approximately 10 - 15 mph. now the service 4wd light is on. fuel filter needs replacing. oxygen sensor needs replacing. this car is a 2002 with 71,000 miles. *nm
12/01/20031
 2002 chevrolet trailblazer was involved in an accident as a result of the rear tail light being inoperative. *mr the consumer's vehicle was rear ended while he was slowing down in traffic. this suv had other failures to include the windshield wipers, engine(6 times) , battery (2 times) , dash board, head light and various electrical problems. *nm
09/01/200561990110/24/2001
 Loud roaring noise - service engine soon light appeared - took it to the dealership - fan clutch needs to be replaced on my 2002 chevrolet trailblazer. *nm
08/01/200507/21/2001
 Have had many of the problems i read on posted complaints: new engine required within nine months-one year of owning new vehicle, inside driver door panel replaced three times, change oil and service engine lights staying on, hood not closing properly, back glass needing replacement, fabric problems in back seat, etc., etc. and this morning it is a $200 problem with the headlight switch. too many things to even remember or name, but chevy has a pretty thick file on me and my vehicle. *nm
08/20/2004258481
 Re defective 2002 chevrolet trailblazer 4x4, problem with 4 wheel drive, a/c, batteries, taillights and electrical problems. *bf while driving 55 mph the vehicle's 4-wheel drive went into four wheel high or low intermittently. the vehicle's battery loses it's charge. the taillights went out and the blower in the air conditioner had to be replaced. fuel splashed out of the filler while the consumer was filling the tank. the vehicle stalled intermittently. *nm
09/20/2004125000510/18/2003
 2002 trailblazer acted like transmission going out, took to dealer they upgraded computer. front right low beam wired burned and melted, took to dealer they wanted to charge 250.00 plus labor for light assembly when all it needed was a piggy plug, bought plug at napa and fixed myself. never have had two back lights working at same time... cant take to dealer to get the recall work because it seems that these vehicles are using a weak oil pump and my trailblazer has been in shop for last month or more waiting to be fixed. the weak oil pump caused damage to rod bearings, main bearings, and crankshaft. gm says out of warranty and my customer service specialist said i'm sorry about 10 times but she was still closing my folder and marking dissatisfied. she can't help me because i'm out of warranty. i hate this vehicle. i have found quite a few recalls but can't do most because its in the shop. i never got any recall notices.*ak
09/10/200463456112/09/2001
 Engine slippage, then started making a knocking noise. we took it to a private mechanic that informed us of a recall notice by general motors on the cylinder sleeve and that the vin of our 2002 trailblazer fell within the parameters of the recall notice. we had the vehicle towed to the dealership, who informed us that the tie rod went through the engine block. we are in the process of having a new engine installed. general motors will only pay for 30% of the repairs even though the engine has been well cared for, has 60,000 miles on it and mechanics have stated that the cylinder sleeve may have contributed to the problem.*ak
07/30/200230001007/15/2002
 Engine stalls ; engine hesitates; engine trembles. *ak
07/19/20038000506/25/2002
 Vehicle constantly displays service engine lamp, air bag module had a problem, rear brake lamps blew out, 4 wheel drive mechanism on dash was replaced, ignition never turned off all the way, killed battery because it drained battery. *nm
07/30/2004560001009/19/2003
 2002 trailblazer. engine stalls while at low engine rpm. with it in park can hit the gas and rpms will go down below 500 then recover. has actually died once. almost died while pulling into a parking spot. almost died when coming to a quick stop at light. at first thought it only occured with the ac on but have declared it to do same with the ac off but not as bad. noticed several complaints of same issue here and on edmunds.com. ours hasn't stalled at highway speeds but i fear it won't be long before it does and my wife is the primary driver and is now pregnant with our second child. vehicle has been to dealer at least three times for this issue. gm needs to put us (all trailblazer owners) in a safe vehicle and diagnose problem nationally before someone is killed. *ak
06/15/200460000105/21/2003
 While driving 40 mph steering pulley failed. vehicle lost power. dealership was notified, but did not resolve the problem. *ak the vehicle switches itself into 4-wheel drive while the manual switch is in 2-wheel drive. the taillights failed. at new computer had to be installed. the rack and pinion needs to be replaced.
04/13/2004210008
 Intermittently when trying to start the vehicle, the vehicle would not start properly. while driving 25 mph, the vehicle stalled, after a few seconds the vehicle would restart as if nothing had ever happened. the starting problem has occurred more than seven times. *jb
07/07/20045
 Upon startup (cold or warmed) there are high rpm's, the idle is high, engine races and does not idle down. when shifting into drive and giving gas there is low acceleration and the truck won't go over about 15 miles per hour. after driving about 2-3 blocks the truck shifts and then runs normal. intermittent problem, dealer states if there is no problem we can't diagnose or fix it. black box recorder is needed to install until problem is reproduced and can be recorded. *la
01/01/19011
 Vehicle stalls with no engine re-start.*mr the consumer is requesting that the engine be replaced in there trail blazer because of the stalling in the engine, before this situation occurs resulting in injury or death. please review and consider request. *cb
11/30/2003103/27/2002
 Failure of the engine of a 2003 chevrolet trailblazer in november of 2003. after changing the engine, broken cylinders in the new engine (after less than 1000 miles!) in january of 2004. *la
112/01/2001
 Problems with vehicle's brake lights and alternator.*mr the car had problems since it left the dealership. the alternator had to be replaced, the 4-wheel drive switch was replaced, the car stalls, brake lights keep shorting out. it cost the consumer $263.49 to have the car fixed. the consumer was not satisfied with chevrolet or it's warranty. *cb *jb
07/15/2002207/15/2002
 There is a knock in the engine of my vehicle. the new engine with the new design of the pistons straight layout is making my engine have a continuous knock. my four wheel drive does not work due to a electrical short in the dash harness. wire harness is located behind dash. tail lights constantly burning out. *la
10/03/2003112/07/2001
 I
7
 The vehicle ran rough and stalled while driving. the dealer attempted to repair the vehicle seven times but has not been successful. *ak
08/15/20031
 While driving vehicle would stall intermittently causing the vehicle to pull off the road. consumer made contact with dealership. *ak
01/01/200221717710/13/2001
 While traveling on the highway and without prior warning or at a stop sign, the vehicle shut down. *ak the vehicle restarted and act as if it had no power, the engine blew and was replaced. the second engine experienced slight miss when traveling 65-70 mph. the dealer placed fuel injection cleaner in the vehicle and the problem still occurred. the vehicle was taken to the dealer and they couldn't duplicate the problem. *scc *jb
07/28/2003111/19/2001
 Consumer stated that while driving, they lost steering control causing an accident. dealer notified. *ph consumer was cut off by a truck losing control. regained control then brakes felt like a lack of pressure. steering loosened then locked up causing the consumer to spin out of control. gm stated there were no recalls. consumer and the insurance company feels there is. insurance co. stated it could've been the vacuum to the engine shutting down or the lower control panel snapping which causes these symptoms. *ph
02/20/2002100101/11/2002
 Since shortly after purchase, (feb. '02) to present (july '03) my 2002 chevrolet trailblazer ltz 2wd has frequent-to-constant pinging in engine while accelerating; flat surfaces and inclines. higher octane gasoline does not remedy. representative at dealer's service dept. states this is normal with trai*blazers. i am concerned that it is causing damage to the heads.*ak
06/23/2003111/28/2001
 I received a notice from chevrolet stating that some 2002 trail blazers may experience a crackling of an engine cylinder bore liner. this will cause engine noise, poor performance, and or stalls with no engine restart. however, they will only repair after the vehicle is damaged. i have 2 children and do not think it is safe to be driving a vehicle that could stall at any time or provide poor performance. i have experienced many problems with the 2002 trailblazer - ranging from the vehicle stopping as i'm going 55 mph, the service engine light staying on, i've received 2 recall notices and then this special policy notice. i think the engine should be replaced for the safety of the driver and other drivers on the road. *jb
06/01/2003001/02/2002
 I received a letter stating that my 2002 chevrolet trailblazer may experience a cracking of an engine cylinder bore liner. this will cause engine noise, poor performance and/or stalls with no engine re-start. this is not a recall. do not take your vehicle has the condition as described above. i feel that this is irresponsible by chevrolet and the action they are taking is also irresponsible. they are covering the vehicle for 7 years or 100,000 miles. please look into this and make chevrolet correct the problem. if they know they are putting a faulty product on the market they should be responsible enough to correct the problem. nestor valle . *nlm
03/21/200313690405/26/2002
 The vehicle stalled intermittently while driving. the dealer was unable to determine cause of problem.*ak the vehicle periodically shut off while in the idle position. the vehicle was delivered to the service department on several occasions to have the problem identified and corrected. as of 07/07/2003, the vehicle continued to have problems with loss of power and the service dept. has yet to determine the problem. *ph. the air condition developed a foul odor which was present after the vehicle sat in the sun, the odor was detected immediately after the vehicle was started and the ac was turned on, the vehicle was serviced times and then the problem returned, the air condition now takes a long period of time to cool the vehicle and produce cold air. *jb *scc *jb
07/31/20028
 I have had numerous of problems with my 2002 trailblazer. i have had to replace my rear tail light housing 3 times in the last year. i have also had to replace the clutch fan 3 times within 3 months. my hood keeps squeaking and has to be readjusted every other month. my instrument panel has gone out twice. the alarm also works when it wants to and the passenger side seat belt always locks up. on 6/13/03 it left finally left me stranded on the side of the road on the way to california. i live in arizona and was traveling with my wife, mother-in-law and our 3 year old daughter. i had to pay for a rental car and had to submit to gm to reimburse me for the rental car. by reading all the complaints on these 2002 trailblazers i think we should all get together and do a class act law suit towards gm. e-mail me with your thoughts. jorgutierr5@aol.com. *nlm
03/26/200321393108/21/2001
 2002 chevrolet trailblazer with 21,000 miles. bought in august 2001. has been in for service 10 times since we bought it. latest problem is stalling in the middle of intersections or after stopping. has been in for repairs for this problem 4 times, and problem recurred today. went out to start car and it was dead. just picked it up from the repair shop yesterday. has been towed three times for same problem. service shop has reprogrammed computer, replaced battery, ignition switch, and tcm (computer module), and pcm/vcm (other computer modules) and fuse kit. still having problem. suv is unreliable and unsafe. *jb
03/14/20031
 2002 chevrolet trailblazer ltz 2wd, engine totally stopped when accelerating onto on ramp of freeway. driver was able to coast to side of highway without incident. put shifter back in park, and ignition started successfully. *nlm
02/01/20035200608/05/2002
 On some cold starts the auto transmission starts off in second or third gear, it stays that way until the vehicle warms up. this is preceded by the engine idleing faster than usual on the cold start. this is an intermittent problem and has been happeing a few times per month. two dealers have failed to find the problem.
06/11/2002
 Consumer states that while driving vehicle will not accelerate and will run at a rough idle, this was caused by a engine coil shortage. dealer contacted and replaced part. mr
04/16/2002
 Engine problems; vehicle has been taken to dealer five different times,and that problem still exists. *ak
07/16/20024
 Vehicle stalling in traffic or at idle .. setting ses light .. codes found for camshaft position sensor ... sensor repeatedly fails -- leaking oil into wiring harness, shorting system
02/01/2002208/01/2001
 When if traffic, vehicle would repeatedly stall with no trouble codes in computer. dealer could not locate problem. consumer inspected vehicle and found oil seaping from camshaft position sensor, saturating wiring. dealer replaced. problem appears corrected.*ak
02/01/2002
 Engine stalled while driving 60 mph. dealer inspected vehicle and determined engine needed to be replaced due to sleeve of one piston falling off.*ak
ENGINE AND ENGINE COOLING - ENGINE - GASOLINE
06/29/200318500708/18/2002
 Engine knock and rattle on cold start, worsens when loaded (in gear). after several minutes, knocking diminishes. coincides with intermittent cold engine stall with no ses light set.*ak
06/28/200318500208/19/2002
 Engine stalls after start regardless of transmission gear selected. will restart, but is stalling after backing out into a major local raod with heavy traffic, posing a rear end collision risk.*ak
12/30/20025400102/04/2002
 2002 chevy trailblazer- while traveling on i-76 in philadelphia, pa at approximately 55 mhp the engine in my trailblazer began to make a loud noise, lost power & shut off. the vehicle had approximately 5,400 miles on it at the time. fortunately, i was somehow able to make it off the highway without incident. the outcome of the problem was engine failure, a liner within the engine came loose & caused piston failure. the vehicle had to be towed & the engine replaced.
11/28/200211681102/15/2002
 I own a 2002 chevrolet trailblazer ls with approximately 11,000 miles which had an engine failure on thanksgiving 2002. entering and accelerating to approximately 60 mph on highway in about 25 degree temperature and engine service light appeared followed by reduced engine power light and then engine stopped running and could not be restarted. dealer advised me that number 4 cyclinder cracked. they further advised me that gm is aware of a manufacturing defect in some trailblazer engines that was caused by a miscalibration of the machine used to manufacture the engine. gm replaced my engine at no cost to me under original warranty. this sudden engine failure could have resulted in an accident and possible personal injury if i had not been able to roll the vehicle to the breakdown lane safely. from nhtsa web site.
10/01/2002
 Upon starting vehicle consumer noticed the service engine soon light illuminated. consumer stated took to dealer and dealer replaced the gas tank. please provide any further information. ts
04/13/2002304/01/2002
 The consumers engine failed on several occasions. one incident caused another driver to crash into a guard rail in order to avoid hitting the consumer, the engine coil seems to be the problem. *scc
05/23/2002107/01/2001
 In addition, warning bell continue to go off without warning lights. mr
08/16/2002304/01/2002
 The consumer states that while driving at 45mph, the vehicle stalled and died out with out warning resulting in a collision. the dealer has inspected the vehicle three times prior to this incident. nlm *scc
06/16/20022
 On two separate occasions vehicle cut off while drivng . dealer and manufacturer have been notified. feel free to provide any further information.*ak
06/08/2002
 While driving 30 mph vehicle stalled/ lost braking ability, and all oil leaked out from vehicle. vehicle at dealership at this time. please provide further information.*ak
02/15/2002
 While driving vehicle would stall intermittently at any speed, vehicle been to the dealer on three occasions, and the problem reoccurring. feel free to provide any further information.*ak
1
 While driving, vehicle completely stalls without warning. cause unknown dealer contacted.*ak *jb
02/24/20021
 While traveling at 70 mph, driver heard a ticking noise, suddenly engine died. driver had to force vehicle to the side of the road. *ak it was discovered that the engine had blown, the 4wd has also been repaired twice and the front brakes shake when applied, mileage to date 12,000-8/02. *yh
ENGINE AND ENGINE COOLING - EXHAUST SYSTEM
08/11/20081
 I own a 2002 chevy trailblazer. there have been numerous problems dealing with bulbs. the main issue i'm having now is the fan clutch. my engine revs really high when i'm driving. the cost of the repair is well over $900. i believe this should qualify as a recall. i've researched various message boards & find this to be a common problem with trailblazer owners. *tr
07/13/2008800001
 Fan clutch replaced on my 2002 chevy trailblazer this year and also a water pump second time. *tr
05/07/200510000404/16/2005
 I brought this suv from the dealership and i started having problems with it a month after i brought it. the car air conditioner stop working and the transmission was making a horrible sound. i took the car to the dealer to get fixed three times. all the times i took the car it came back the same way that i took at first. i also took it to a different dealer to get fixed and they also didn't fixed it. i want to cancel this suv purchase. mainly because even before t brought the suv the salesperson at the dealer added $5,000 to my income so i could qualify to get the suv, but that was completely a lie. right now i'm having many problems at work; that's the main reason i want to cancel the purchase of this suv, which is just giving me many problems. *jb
08/01/200428547108/09/2001
 There is a very strong odor of fuel from the exhaust. *mr after gm campaign 03012 and 03012, denley code 07222 was performed, that was when the odor was present. *sc *jb
12/01/200111
 The brake light went out multiple times without warning. the dealer was aware of the problem. there were no incidents to report at this time. *ak the consumer stated when the vehicle was warm, the was a noise in the front end, the dealer replaced the axle seal and bearing, the o2 oxygen sensor was replaced. the 4-wheel drive was inoperative. *jb *nm
09/18/200333407101/31/2002
 Electronic exterior rearview mirrors and power seat engage and operate by themselves. dealership cannot fix the problem. *ak the memory for the mirrors and seat would not keep their position. when the consumer entered or exited the vehicle the systems would reset to a new position. occasionally they moved while the vehicle was in motion. the dealer has replaced many components but the problem still exist. the check engine light illuminated. the dealer replaced the oxygen sensor. the a/c control mode button became stuck and was noisy. the dealer replaced the a/c module head. the left windshield wiper chattered and skipped. the dealer replaced the wiper insert. the 4wd switch fluctuated between 4wh and a4wh. the dealer inspected the vehicle and replaced the transfer case select switch. *ts *nlm
06/08/20031
 While driving at any speed and with no warning consumer can strongly smell gas fumes inside vehicle dealer notified. *ak
07/05/200212006/30/2002
 The rear window of my 2002 chevrolet trailblazer pops open while driving, even when it is locked. its been into the dealer (3 different ones) 7 times and chevrolet has told me that since they can't replicate the problem, there is nothing they can do. the window pops open several times a week. we do drive on a dirt road, but its nothing unusually rough. my wife has started having migraine headaches, and they started a few weeks after we bought this car. we have the opinion of several doctors that say these headaches could be caused by the exhaust that fills the car when the window pops open. i've asked the dealer if they could make the window so it doesn't open at all, but since its a lease, they won't do anything to the car that would affect the value of the car. i also believe this to be a problem because of what could happen when i'm driving down the interstate and the window pops open (which happens very often) and something flies out the window and causes another car to wreck and possibly kills someone. another problem i have is that sometimes the window unlatches, and we don't realize it. if i park my vehicle somewhere and someone steals the contents of the car, or the car itself. after discussing these issues with the chevrolet customer service rep (dan) they said they are not responsible for any of these cases. this failure happens about every three days and started about a week after we bought it (around 7/5/2002). we've had 3 other new leased vehicles (1998 dodge ram, 2000 pontiac grand am, and a 2001 dodge ram) since moving into our current house and have had absolutely no problems that have been caused by the roads we drive on, or how we drive them. i fear for my safety as well as the safety of others while driving this car, however i don't have a choice since i can't afford to terminate the lease and buy another car.....please help. *nlm
ENGINE AND ENGINE COOLING - EXHAUST SYSTEM - EMISSION CONTROL
110/05/2001
 Air conditioner came on without turning it on. dealer determined that the oxygen sensors and the air conditioning switch must be replaced. *ak
412/17/2001
 Upon starting vehicle, the electrical system malfunctioned, causing the headlights, radio, and the dashboard lights to short out. this happened several times. the consumer had taken the vehicle to the dealer and they changed the sensors, however it did not solve the problem. *ak there was noise in the steering wheel. the consumer was told that the problem was a characteristic. the hatch lock did not work, and the rear windshield wiper did not work. the oxygen sensor was changed twice along with the seat belt switch, the key lock on the driver door, battery, and the wiring harness. *scc also the cup holder broke. *jb
ENGINE AND ENGINE COOLING - EXHAUST SYSTEM - MANIFOLD/HEADER/MUFFLER/TAIL PIPE
11/22/2005890001
 The manifold cracked on 2002 trailblazer with 89000 miles on it. *jb

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