Bulletins


BulletinBulletin dateReplacement BulletinItem no.SummaryAdded
ENGINE AND ENGINE COOLING
990602012D04/01/2002990602012C634218Subject regarding rust in cooling system, heater inoperative, blows cold air, engine overheats (flush cooling system). nlm09/28/2002
990602012C06/01/2001990602012B623086Some customers may comment that the heater is inoperative, blows cold air, engine may exhibit an overheat condition or the coolant reservoir has rust in it. *tt10/26/2001
990602012B02/01/2000990602012A611277Some customers may comment that the heater is inoperative, blows cold air, engine may exhibit an overheat condition or the coolant reservoir has rust in it. *tt05/31/2000
990602012A01/01/2000990602012609717Some customers may comment that the heater is inoperative, blows cold air, engine may exhibit an overheat condition or the coolant reservoir has rust in it. *tt04/07/2000
99060201206/01/1999606523Conditions with heater inoperative, blows cold air, engine overheats, and rust in the coolant system. *tt08/26/1999
ENGINE AND ENGINE COOLING - ENGINE
0172701/01/2004100063634.3 l35 lu3 rattle or buzz noise from engine. sit bulletin 1457619. *tt04/29/2004
03060102408/01/200310004371Rattle noise in engine. *tt12/04/2003
030601024A03/01/2004030601024B10004301Rattle noise in engine. *tt12/01/2003
676114A03/01/199752601Engine noise (install valve stem oil seal). *tw08/21/1997
ENGINE AND ENGINE COOLING - EXHAUST SYSTEM
02060500205/01/2002634729Some customers may comment on an exhaust boom / groan noise in the passenger compartment. *tt10/07/2002
31100110/31/2001628070Some vehicles may exhibit an exhaust noise, rattle noise at 550 rpm. *tt03/05/2002
ENGINE AND ENGINE COOLING - EXHAUST SYSTEM - EMISSION CONTROL
77651204/01/199752347Engine rough, miss, and oxygen sensor dtc's (replace oxygen sensor jumper harness). *tw07/24/1997

Consumer Complaints


Fail datemilesoccurencesPurchase date
ENGINE AND ENGINE COOLING
02/21/20091
 I have occurying multiple issues with my 1997 chevy blazer which include the back seat seat belts not working correctly,suspension control arm and bushings, corrosion of intake gaskets due to dexcool required coolant. *tr
09/26/200580334112/30/2003
 Driving south on i-5. heard loud rattling noise which became loud banging noise, followed by boom and white smoke pouring out from under the hood. car spun around several times before i could gain control. engine blew. this car has cost me $4490 in repairs from 1/1/04 to 9/26/05. car well maintained - i have all receipts for work. aaa auto svcs team conducting independent investigation as to cause of this incident. *nm updated 12/12/05. *jb
11/01/20041
 Chevrolet blazer 4x4 1997, caught on fire and burned while driving. *bf *jb
06/14/200485000104/01/2000
 While driving at any speed, the vehicle intermittently stalled. this caused a lost of steering and brakes. an independent shop and dealer could not duplicate or correct the problem. *ak *sc *jb
11/15/20020
 In november i took my car into the chevy dealer and had the intake manifold gasket replaced. a month later my engine (4.3l v6) was dead, as a result of dexi-cool in the block. my chevy dealer's service dept. wanted $5000 for a new engine. i donated the car to charity.
11/15/20020
 In november i took my car into the chevy dealer and had the intake manifold gasket replaced. a month later my engine (4.3l v6) was dead, as a result of dexi-cool in the block. my chevy dealer's service dept. wanted $5000 for a new engine. i donated the car to charity.
01/27/200483878107/25/1997
 I have had coolant leakage in my 1997 cheverolet blazer and have talked to people at different dealers to no avail no one recommended that i have a systems check now i find out there is a technical bulletin that i stumbled upon at jasper engines that shows that the 1992 through 1997 gm 4.3l vin r&w engines have the problem that coolant loss has been associated with cracks that may develop in the lifter valley area of the block. until i came upon this nobody could give me a answer is there any thing that can be done to help me resolve this issue. *jb
05/18/200398000206/07/2001
 Intake manifold gasket failure on a 1997 chevy blazer lt. leaking large amount of coolant, water pump failure leaking large amount of coolant. *jb
10011/01/1996
 Numerous failures of electrical components...gas gauge varies reads excessively high.....electronic temp gauge / compass malfunctions during rain
ENGINE AND ENGINE COOLING - COOLING SYSTEM
02/21/20091
 I have occurying multiple issues with my 1997 chevy blazer which include the back seat seat belts not working correctly,suspension control arm and bushings, corrosion of intake gaskets due to dexcool required coolant. *tr
03/08/200670000109/01/1999
 Owning this vehicle has been a nightmare and a financial drain. windshield wipers worked when they chose, replaced wiper motor due to defective part. upper and lower ball joints all had to be replaced. wheel bearings had to be replaced. a/c stopped working, had it looked at and recharged and it still doesn't work. fuel gage didn't work, replaced fuel sensor and sending unit. rear wiper quit working, replaced rear wiper motor, a few days later it does not work again. replaced water pump, have replaced abs only to get a recall after the fact with no reimbursement. wears through brake pads entirely too fast. replaced alternator and battery twice. rear hatch does not unlock with key. headlights are so dim they might as well not exist. water leaks into interior on drivers side due to a bad seal. idler arm needs to be replaced. gas pedal sticks. now heater fan works sometimes. reading through the complaints we are all experiencing the same problems and nothing is being done about it. recalls issued on some vehicles but not all? now i hear gm put a bad intake manifold gasket on these as well as several other cars (1997) and did not issue a recall because it is not a safety matter! this causes antifreeze to leak into the engine and ultimately ends in a repair of at least 1500.00. after my experience with this vehicle i will be purchasing soon and it most likely will not be gm. sad since my dad worked for them for 30 years. they should be held accountable for putting a bad product on the market and leaving us to dry. *nm
11/12/200459000108/01/2002
 Ball joint upper control arm broke as i was driving today. since i purchased this 1997 blazer i have had nothing but problems-the windshield wipers fail,the water pump has been replaced the fuel pump has also been replaced. this vehicle has less than 60,000 miles. i just found out that most of these problem have been recalled i was never notified. i purchase the vehicle used at a local dealership,whom by the way did not tell me of any of these recalls. i have had very serious and dangerous problems with this vehicle. *jb
11/28/20031060001
 While driving at 35 mph vehicle overheated and stalled, vehicle was towed to independent shop, technician diagnosed that coolant turned into acid and damaged the intake manifold/water pump/ thermostat, and radiator. dealer notified. *ak
10/17/2003114387412/27/1997
 97 blazer cooling system failure. from the time i bought the car the cooling system had trouble. the radiator had a leak ( 34391 miles), the cooling system clogged up and the heater core leaked from dex-cool gelling up ( 65265 miles ), again heater core leaking from bad dex-cool ( 104044 miles ), heater core leaking (114387 miles). each time the heater core had to be replaced. the cooling system had to be acid flushed by the dealer because the dex-cool gelled up. all these repairs where done by gm dealer. the dealer could not tell me why the dex-cool was gelling up or the heater core kept leaking. i filed a complaint with gmc (complaint # 1-152407734) gmc could not help me. i found out from a radiator repair shop that they have had many gm cooling system failures du to the dex-cool causing electrolysis. this is the main cause of my problem and gm and the dealer will not address it. the radiator shop said the only repair is to flush out the cooling system for 36 hours the refill it with antifreeze, not dex-cool. also add an anti-electrolysis solution to it and a radiator cap with an anode rod on it. they have had very good results with this repair. there many complaints on your site about this and also many on other auto repair web sites. all i want is to be refunded the money i spent on repairs from day one and have gm pay for the radiator shop to do the flushing and repairs. *la
09/24/200330600009/17/1996
 Upper and lower ball joints needs replaced. upper ball joints were replaced with the 2001 recall from gm. vehicle has less than 31,000 miles
02/19/200312/01/2000
 I purchase my 97 blazer in dec 2000 with 35000 miles from a local dealer, i believe it was a previous lease vehicle. within one year i had to replace ball joints but was told that i did not qualify for a recall. in feb of 2003 i lost my heat and spent close to 2000 dollars replacing first the water pump, then the radiator. after that didn't solve the problem, the dealership told me that the system needed to be flushed with a special machine that would cost another 400 dollars. the system had to be flushed twice to get marginal heat. according to the dealership, the next move is to replace the heater core. now the wipers stop working and only restart by flipping the switch back and forth. not real good on the highway in rush hour traffic. i recently had the alternator replaced and the dealership stated that the serpentine belt was old and cracked and needed to be replaced. it actually had less than 5000 miles on it as they replaced it in february when the water pump was done, there was nothing wrong with it. the combination of lousy service from 2 different dealerships, a vehicle that has had nothing but ongoing problems will be enough to stop me from buying another gm product again. *nlm
04/01/200376000109/01/2001
 Heater in truck failed, no heat to defrost windows. coolant gauge spiking with sludge in radiator and overflow bottle. after truck has been run, strong smell of coolant is apparent. *jb
02/27/200374000106/05/1999
 Engine failures related to coolant gel up with dex-cool. cooling system flushed twice. intake gasket leaked coolant into engine and damaged internal bearings. new engine needed. water pump failed after that. *jb
03/24/20031
 Consumer called complaining about having radiator contamination which leaked in the front seat. *nlm
02/23/199891400108/31/2000
 The transmission in my vehicle has a defective valve body and it caused my transmission to break, i went to the dealer when i first had the problem of a hard shift from first to second gear when the vehicle was being driven long distances. the dealer said the vehicle is shifting fine and to bring it back when it does it again. this was back on 08/19/02 and now i have a code 1870 on the computer and the transmission is shot. i found out the transmission is a 4l60e and it is very unreliable. also i already had to change my water pump and alternator and my gas gauge does not work and there is a problem with my windshield wipers also. *jb
10/05/2001101/01/2099
 Gm won't reimburse ball joints due to replacement not by gm dealer. dt
04/01/2001302/01/1997
 Consumer complains of engine overheating. the vehicle has been in for repairs on several occasions. *jg
08/27/200111/01/1996
 No summary listed for above vehicle. *ak
10/10/200107/01/1998
 This vehicle has had numerous problems. from bad dexcool, witch caused a major overhaul of the cooling system at approx. 37000 or 3 1/2 yr. yet chevrolet states the coolant is good for 5yr or 150,000. the front ball joints had to be replaced at approx. 35,000. just over the 3yr warranty with no help from chevy despite numerous complaints of this failure. also have had two batteries in the system one after only 3000 miles and the second one is now out at 38000 miles. there is a short in the system that still has not been found. the shift lever handle has been a changed 3 times and still rattle after approx. a month of use. the front drivers side mirror shakes to the point it is hard to see out of when driving. the hood rattles when going over bumps, which can be fixed by adding a solid rubber gasket at the top of hood to keep the hinge stops from bouncing on the frame. the front brakes had to be redone at 28,000. *ak
10/10/200107/01/1998
 This vehicle has had numerous problems. from bad dexcool, witch caused a major overhaul of the cooling system at approx. 37000 or 3 1/2 yr. yet chevrolet states the coolant is good for 5yr or 150,000. the front ball joints had to be replaced at approx. 35,000. just over the 3yr warranty with no help from chevy despite numerous complaints of this failure. also have had two batteries in the system one after only 3000 miles and the second one is now out at 38000 miles. there is a short in the system that still has not been found. the shift lever handle has been a changed 3 times and still rattle after approx. a month of use. the front drivers side mirror shakes to the point it is hard to see out of when driving. the hood rattles when going over bumps, which can be fixed by adding a solid rubber gasket at the top of hood to keep the hinge stops from bouncing on the frame. the front brakes had to be redone at 28,000. *ak
08/01/2000104/01/1998
 While checking fluid levels, consumers son, who is a mechanic, noticed rust in the radiator fluid, he also found tsb 666841 regarding rust in the coolant system, consumer has been trying to get gm to alleviate this problem due to the safety factors it could cause, however it is very costly, gm has not been of any assistance because the consumer is not the original owner of the vehicle. *slc
07/01/19983
 Cooling system will repeatedly turn black, even after consumer had radiator flushed. problem still occurs.*ak consumer states problem comes back every 20000 miles or every 6 months. *slc
04/15/2000512/01/1999
 Dealership originally serviced at lousy and unfinished work 5 returns for same thing s&j chevrolet. *ak
03/01/200102/01/2001
 Brakes squeak, idler arm not attached properly causing rattling and pulling while driving, windshield wipers stop working intermittently during use causing problems seeing outside, rear defrost does not work, fuel gauge gives incorrect readings and bobs back and forth, dex coolant turned to sludge causing blockages in heating core, engine block, and radiator
03/05/2001108/01/1999
 No summary listed for above vehicle. *ak
12/28/2000204/01/2000
 Transmission lost 3rd an 4th gear causing car to overheat and cause pump leak. *ak
12/04/2000
 Engine coolant had to be replaced. manufacturer put in red coolant that turned to a thick mud. also, windshield wiper motor had to be replaced. *ak
1
 Water pump failed. *slc
06/13/2000203/07/1997
 While driving about any speed up a hill engine will overheat,and the temperature gauge will rise up to its limit. thermostat had been replaced, and flushed twice. *ak this problem has been clogging radiators and heater. *yh
05/21/200010/01/1996
 Cooliant system filled with slugs caused by dex coolant product. breakdown. dex is suppose to be good for 100,000 miles, at 53,000 took vehicle in for tranmission hose leak, dealer opened radiator cap and said this is a on going problem with blazers. recommended a flush be done, which the dealership did. now vehicle has an indication (spike) of over heating. now dealership states block needs to be pulled, freeze plugs pulled and a complete block flush , along with radiator recored and heater core replaced. is there any information on the breakdown of dex coolant fuilds that is causing this problem or that has been sent out from the manufacter of this product. i am now looking at $1,300.00 of repairs to correct this problem. *ak
04/20/200004/01/1997
 Contamination of cooling system due to dex-cool. entire system must be flushed and heater core replaced. chevrolet motor div. has offered to pay for half the cost, although it is no longer under their 36,000 mile warranty. my concern is that there is a major problem with dex-cool and they are not responding to it, as they claim that it should not need to be changed for 5 years or 150,000 miles. i found out about the contamination after bringing my car in for a sloshing, gurgling sound under the dash. *ak
06/01/1998
 Anti-freeze goes bad and looks like mud. lots of people having this problem according to repair shops. *ak
ENGINE AND ENGINE COOLING - COOLING SYSTEM - HOSE
02/20/2002
 During routine oil change mechanic noticed cooling lines were leaking, and had to be replaced.*ak
02/24/2000201/13/1997
 While driving down road engine check light came on. at the same same time oil was pumping on the left front rotor, and lost all oil. pulled over. contacted dealer and manufacturer, and had vehicle towed. engine cooling line was rubbing against something which caused a hole in the line. dealer replaced cooling line. *ak *ml
01/12/2000109/01/1996
 Since i bought the truck with 33 miles, i have spent app. $2,000 on it, above the wty's and maint. 12/96 - passenger side got flooded, 9/97 recall done, sucking air sound ( not found by tech.),1/98 - complete mait 15k + 4x4 service($235), 2/98 -f. brakes + machined rotors ($162), gas gauge not working took, removed dash( broke hazard light) replaced gas tank sensor -3 days(rental given) 1 day later, filled the tank and the gas ran out ( a day lost at work), 1/99 - 4x4 switch replaced, 7/99 - replaced f.brakes ,2 ball joints, new rotors,2 rear axle seals + cleaned oil out of rear brake($540), 9/99 - car doesn't start once replaced battery, serpentine belt($248), 1/00 - wipers work off+ on- replaced wiper board, replaced starter with rebuilt + wty, 2 cooler lines($799). now when i bought the car the sales person agreed to give a rental, a new service man starts and says i'm new and you don't get a rental unless it;s in over night just to let you no im a medical assistant and just can't miss work at any time the car is in for repairs. very disappointed. *ak
ENGINE AND ENGINE COOLING - COOLING SYSTEM - RADIATOR ASSEMBLY
11/28/20031060001
 While driving at 35 mph vehicle overheated and stalled, vehicle was towed to independent shop, technician diagnosed that coolant turned into acid and damaged the intake manifold/water pump/ thermostat, and radiator. dealer notified. *ak
02/28/20020
 Consumer had taken vehicle to dealer for a recall repairs on radiator. notice received for radiator to be flushed, but mechanic found out that radiator had to be replaced. consumer added that problem had happened after vehicle ran out of warranty. please provide more infomation.*ak
07/01/2000
 Dex coll is an antifreeze that was put intovehicle. radiator had a red clay substance in it because of dex cool. has contacted dealer, and dealer was not willing to do anything.*ak
05/01/1998
 Radiator fluid gummed up due to leak caused by faulty silicon; trans dip stick rusted due to placement of wiper fluid line (elbow)
05/08/20010
 Vehicle was parked and consumer's husband lifted hood up to look inside, and noticed that radiator was filled with rust. dealership was aware of problem.*ak
 While checking radiator, radiator operated poorly, no cooling turned into jell. dealer has been notified. please provide further information.*ak
07/01/1997
 Radiator overflow dry filled with what looks like dirt radiator filled with what looks like mud caused by dex-cool coolant should not have to be serviced for 6 years or 100,000 miles.
09/13/2000102/01/1999
 Dex-cool turned to gel causing no heat from heater. required special system flush, new thermostat and radiator cap
09/13/2000102/01/1999
 Dex-cool turned to gel causing no heat from heater. required special system flush, new thermostat and radiator cap
06/13/2000203/07/1997
 While driving about any speed up a hill engine will overheat,and the temperature gauge will rise up to its limit. thermostat had been replaced, and flushed twice. *ak this problem has been clogging radiators and heater. *yh
09/01/1999
 Noise from underneath very annoying. brakes replaced by dealer when bought now sqeaking after only 9500 miles the transmission dipstick has rusted and particles are going into the transmission. dealership does not care the radiator was full of slug had to be flushed out of pocket for me now there is a burning smell after i accelerate smells like burnt toast. this car nothing but problems since i purchased it and will never buy this brand again thank you for listening
02/01/1998101/01/1997
 Engine oil leak looks as if the oil filter is leaking but is coming from the oil filter adapter lines service advisors and managers all know of the problem and told me what it was without looking at vehicle they said it was common on all blazers chevrolet denied any problem fuel gauge stopped recording below half and would go back up to full at times gas pedal would be hard to press and finally would stick at various speeds engine coolant coolant looks rusty in the overflow tank and corroded around radiator cap directly behind the sticker that reads no matience required for 5 yrs. 150,000 miles
ENGINE AND ENGINE COOLING - ENGINE
10/29/200760000305/22/1997
 Tl*the contact owns a 1997 chevrolet blazer. the contact stated that the engine failed on three different occasions. after waiting 5-10 minutes, the vehicle restarted. the failure has occurred while making a turn, driving downhill at approximately 15 mph, and another time while driving approximately 55 mph. after the most recent failure, the vehicle was taken to a repair shop the next day. the mecahnic was unable to duplicate the failure and advised the contact to wait until it occurs again. the vehicle has been driven for almost a month and the failure has not recurred. the failures were intermittent and no warning indicators were present. once the failure occurred, the key could not be turned or removed from the ignition and everything failed. the current and failure mileages were 60,000. updated 01/11/08. *lj updated *jb
01/01/20031
 Nar 02/10/2003. the consumer had numerous problems with the vehicle. the air bags deployed for no apparent reason, the windshield wipers failed, the manifold gasket failed, the turn signals went out, 2 batteries failed within a year, the alternator and belt failed, the oxygen sensor and a/c compressor failed. *jb
09/10/2003820001
 While driving at 65 mph engine revved very high. consumer pulled to the shoulder, and called a tow truck and had vehicle towed to a repair shop. a rebuilt engine was installed in the vehicle, but not by the dealer.*ak
01/16/20035980010011/09/2002
 Vehicle will not start or quits running while on roadway or in traffic. *nlm
4
 For about a week vehicle has stalled four times. vehicle has been taken to the dealer. *ak
01/09/2001102/02/1997
 A spark plug electrode punched a hole through piston, which caused an engine failure while driving. dealer / manufacturer notified, and unwilling to assist in this matter. *ak consumer states he has photos of the disassembled motor showing the damage. *jb
01/13/1999101/01/1998
 I was driving on the tollway and approximatly 1 mile before the toll, i felt my car accelerating without my foot on the gas. i thought the cruise control was on, but it wasn't.as i approached the toll and had my foot on the brake, my car was not slowing down, i almost crashed into the car ahead of me. i put the car in neutral and shut it off. after putting it in park, i was told by the toll authority to try to start the car. when i did, it revved up all the way into the red zone,8000 rpms. i took the car to the dealer and was told nothing was wrong with it. about 2 weeks later, my engine was deemed ruined. the rod, pistons and bearings were shot, not due to lack of maintanence. the cause of the engine problem was due to the throttle. none of this should of occurred in a car that is still somewhat new. please respond. *ak
05/28/1999
 The oil dipstick has rusted completely. dealer has been notified. *ak
12/30/1998
 While driving at 55 mph the transmission went out, the gear was stuck in 3rd gear, and the gears were shifting very hard. consumer took the vehicle in for service, and the dealer test drove the vehicle and couldn't determine. dealer replaced the transmission tube, and engine valve body. also, the accelerator slips. *ak
09/16/1998109/09/1997
 Cracked gasket.
203/25/1997
 Oil regulator failed, resulting in oil leakage.
ENGINE AND ENGINE COOLING - ENGINE - GASOLINE
08/20/20021
 The vehicle accelerated suddenly and unexpectantly. after inspection of the vehicle by the dealer it was discovered that the guide housing air cleaner broke off and lodged behind the accelerator. nlm
09/10/20021
 Consumer states that there was a fire in the engine compartment which caught the whole vehicle on fire. contacted dealer and the dealer is not willing to do anything. please provide further informaiton. nlm
06/16/2002
 Engine cut off and locks while driving at highway speed of 60-65 mph. dealer and manufacturer were notified. feel free to provide any further infromation.*ak
06/10/2001401/01/2000
 When i bought the truck, it had a 3,000mile 30 day warranty on it, 60000miles. 1st occurrence with engine light and dipstick corrosion was within that time. down time for the truck one week. the next month, i was enroute and the light triggered again. took truck to local chevy dealer who had looked at dipstick before replacement, stated same dipstick. at this point i called chevrolet company who told me the $1800 damage bill caused by the defective dipstick and subsequent transmission damage would be mine to cover.all because it was under warranty and should have been fixed the first time.*ak
07/27/2001
 Periodically vehicle would stall whether at 65 mph or 25 mph. dealer has not found specific cause of defect or remedy, but had admitted to stalling. please add additional information. *ak
03/05/2001108/01/1999
 No summary listed for above vehicle. *ak
02/13/20011
 Consumer had found a couple oil drops on ground. then, took vehicle for an oil change.dealer found oil leak on engine cooling unit line. could not repair it because part could not be found. *ak
 Oil leak at oil line could cause damage to engine, and in some cases when driving, engine could lock up without prior warning. consumer has contacted dealer, parts on back order. please provide any further details. *ak
01/18/200103/01/1997
 No summary listed for abov evehicle. *ak
06/01/1997207/09/1997
 The vehicle stalls while driving without warning resulting in loss of power brakes and steering, dealer has been unable to find the problem nlm
 When air conditioner is on, and vehicle is going down a hill or small incline , engine will die, causing loss of power. *ak
02/02/19984001/01/1997
 Intermittently, while driving at any speed, truck shut off without warning. dealership able to duplicate this problem, but unable to determine cause. owner experienced the same problem about two years ago, but problem went away. currently, it is happening more frequently. *ak *ml
 In various situtations vehicle will stall and shut down with no apparent reason. dealrr cannot determine cause. *ak
08/01/1998109/27/1997
 Vehicle fire due to possible engine failure. mjs
10/10/1999
 While driving vehicle just cuts off without warning. dealer is not able to locate the exact problem, but fuel pump has been replaced twice, and will be replaced a third time. this will be three times in one month that fuel pump has been changed. please provide any further information. *ak
05/27/1999408/01/1997
 The engine continues to cut off if the vehicle has been drived for more that 30 minutes and the a/c is running. the engine light does not come on nor are there any warnings that the vehicle is going to die. dealer cannot identify any problem because computer isn't registering any issues. the egr valve was replaced but problem continues. *ak
209/01/1997
 When making a left turn vehicle completely shut down, causing loss of steering control and brakes which has resulted in two collisions. cause unknown. dealer could not correct the problem. *ak
 While driving engine suddenly shut down, causing a loss of all power in this vehicle. also, brakes woudl not respond, almost causing an accident. vehicle was repaired by the dealer. problem occurred again after a month. dealer was then contacted again. *ak
03/17/19994
 When starting engine starts and car just sputters along. sometimes consumer can go only 20mph, and if on a highway, it may cause an accident. *ak
02/01/1998101/01/1997
 Engine oil leak looks as if the oil filter is leaking but is coming from the oil filter adapter lines service advisors and managers all know of the problem and told me what it was without looking at vehicle they said it was common on all blazers chevrolet denied any problem fuel gauge stopped recording below half and would go back up to full at times gas pedal would be hard to press and finally would stick at various speeds engine coolant coolant looks rusty in the overflow tank and corroded around radiator cap directly behind the sticker that reads no matience required for 5 yrs. 150,000 miles
10/15/19991806/01/1999
 The engine shuts off without notice at random. when this happens on the freeway, it is rather un-nerving, as i must get to the shoulder to stop. once turned off for ten seconds, the engine restarts as if nothing happened... until the next time. firestone charged me to replace the alternator with no improvement. it has sence been to the tom jumper chevrolet dealership three times. they keep replacing small parts, but have yet to identify the problem. each time they keep the truck one to two weeks, but the problem returns. i'm afraid to drive it in its present condition, but have to drive to work. i feel like they will not correct the problem until someone gets hurt as a result of this failure. any help you can provide would be greatly appreciated.
04/04/19993005/01/1997
 When coming to a stop, vehicle idle speed surges to 1200 rpm, instead of its usual 700 rpm, causing car to move forward into car ahead. this is intermitant, @ only occurs when car is in gear. problem is handled by shifting to neutral when preparing to stop..
11/01/199805/01/1997
 While traveling at any speed or when coming to a complete stop vehicle will stall and cut off without prior warning. consumer has contacted the dealer, dealer has yet to replace any parts. *ak
1
 Engine failure.
06/04/19981
 While driving vehicle at any rate of speed vehicle begins to lose power and eventually stalls. *ak consumer stated also stalled when idling, when restarted, starts right up and engine revs up to 1500-2000 rpm, then goes back down to idle at 600 rpm, when driving on highway, sometimes vehicle looses all power in gas pedal, if the gas pedal is stepped on there is a loud popping noise that can be heard.*jb
ENGINE AND ENGINE COOLING - ENGINE - GASOLINE - BELTS AND ASSOCIATED PULLEYS
02/19/200312/01/2000
 I purchase my 97 blazer in dec 2000 with 35000 miles from a local dealer, i believe it was a previous lease vehicle. within one year i had to replace ball joints but was told that i did not qualify for a recall. in feb of 2003 i lost my heat and spent close to 2000 dollars replacing first the water pump, then the radiator. after that didn't solve the problem, the dealership told me that the system needed to be flushed with a special machine that would cost another 400 dollars. the system had to be flushed twice to get marginal heat. according to the dealership, the next move is to replace the heater core. now the wipers stop working and only restart by flipping the switch back and forth. not real good on the highway in rush hour traffic. i recently had the alternator replaced and the dealership stated that the serpentine belt was old and cracked and needed to be replaced. it actually had less than 5000 miles on it as they replaced it in february when the water pump was done, there was nothing wrong with it. the combination of lousy service from 2 different dealerships, a vehicle that has had nothing but ongoing problems will be enough to stop me from buying another gm product again. *nlm
207/01/2001
 The vehicle failed to start twice and battery was replaced. the service person suggested the belt tensioner and serpentine belt to be replaced. *yd
207/01/2001
 The vehicle failed to start twice and battery was replaced. the service person suggested the belt tensioner and serpentine belt to be replaced. *yd
01/19/1998108/26/1996
 Serpentine belt replaced. *mjs
01/01/199903/01/1998
 Well so far the encoder motor, the drive belt,trans. dipstick rusted,sensor in ses light,whining fuel pump, vibration in rear when leaving from stop,now the car stalls while driving along.and you never know when it will ,it may go several miles before doing so and it may only go a couple before doing so. i feel that it is very dangerous not knowing whether you can get out of the way or not.the dealer tells me he is pretty sure that it is the fuel pump.but can not tell me for sure that it will take care of the problem....and the part alone is 518.00 we have a van with 142k miles and a truck with 262k miles so we feel like we maintain our vehicles or would not get the mileage..really concerned with this vehicle.....which was a fleet vehicle purchased from auction....and we were told differently.....i want to be able to get satisfaction from somewhere....please help. *ak
05/22/1998
 When exiting the highway at 15-25 mph and when attempting to make a turn off the highway consumer lost all power. vehicle became very hard to steer and operate. also, noticed all lights illuminated on the dashboard. consumer contacted the dealer, dealer stated problem was due to the serpentine belt and tensioner which needed replacing. please provide any further details. *ak
ENGINE AND ENGINE COOLING - EXHAUST SYSTEM
 Xexhaust fumes entered vehicle. *ak
11/29/1999102/01/1997
 The exhaust system hits the floor of the vehicle makes bumping noise . *et
09/01/1997
 Vehicle has 92k miles, but its 99% highway miles. the tranission failed as well as the sensor module, gas gauge failed, water pump failed, cracks in the exhaust system, windshield fluid leaked into the vehicle when rear washer was activated, bad battery which was never replaced (trying to sell me a new one all the time), constant resurfacing of front rotors due to unevean wear and a defective gas gasket to the evaporative system. i can supply exact mileage and dates of repair. if i didn't have an extended warranty, i would have taken chevrolet to court by now for a new vehicle. i don't think my next vehicle will be a gm.
111/30/1998
 Exhaust system failed causing fumes to enter cabin of vehicle.
ENGINE AND ENGINE COOLING - EXHAUST SYSTEM - EMISSION CONTROL
01/01/20031
 Nar 02/10/2003. the consumer had numerous problems with the vehicle. the air bags deployed for no apparent reason, the windshield wipers failed, the manifold gasket failed, the turn signals went out, 2 batteries failed within a year, the alternator and belt failed, the oxygen sensor and a/c compressor failed. *jb
01/01/200101/01/2001
 Engine check light problem is an ongoing issue with both current and former owner. 3 different mechanics put ther scanners on the vehicle and keep bringing up the oxygen sensor as the problem. had one bad sensor at the wiring harness plug which was poorly assembled at the factor causing water to get to the contacts and contaminated the connector. replaced all 4 o2 sensors and still cannot get the check engine light to go away. vehicle performs perfect along with 24 mpg gas one highway driving. this is an issues other blazer owners are experiencing. gm should be held accountable to fix this issue.*ak
01/01/199710
 When filling the fuel tank, there is a strong odor in the engine compartment, and the vehicle may have a no start condition. dealer replaced fuel canister and alternator.but problem is still occurring. *ak
ENGINE AND ENGINE COOLING - EXHAUST SYSTEM - EMISSION CONTROL - GAS RECIRCULATION VALVE (EGR VALVE)
06/11/2002
 Egr valve failed, causing vehicle to shutdown. vehicle loses power and doesn't restart. dealer has replace it 2 times. please provide more information.*ak
05/27/1999408/01/1997
 The engine continues to cut off if the vehicle has been drived for more that 30 minutes and the a/c is running. the engine light does not come on nor are there any warnings that the vehicle is going to die. dealer cannot identify any problem because computer isn't registering any issues. the egr valve was replaced but problem continues. *ak
08/17/1999
 The vacuum and egr valve caused the problem with brake failure. brakes felt like pushing on a brick when going downhill. was making squealing noises. had no brakes. vehicle went over an embankment & flipped. upon impact, air bags failed to deploy. dealer informed owner of intermittent problems with brakes. driver has back problem due to accident. *ak
ENGINE AND ENGINE COOLING - EXHAUST SYSTEM - MANIFOLD/HEADER/MUFFLER/TAIL PIPE
11/28/20031060001
 While driving at 35 mph vehicle overheated and stalled, vehicle was towed to independent shop, technician diagnosed that coolant turned into acid and damaged the intake manifold/water pump/ thermostat, and radiator. dealer notified. *ak