Bulletins

BulletinBulletin dateReplacement BulletinItem no.SummaryAdded
ENGINE AND ENGINE COOLING
PIP-4138K01/01/201110037933Ready06/08/2011
PIP-4138K01/01/201110037933Gm: the service engine soon light is on, there is also a misfire or engine noise. there are multiple possible causes. *rm06/08/2011
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
05060103411/01/200510018733Engine oil leak at rear cover assembly area. *tt01/12/2006
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
33303330A10014881Service engine soon (ses) light due to a p0171 diagnostic trouble code. *tt05/11/2005
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
0506200405/06/200410013212S engine possible false code dtc p0172. *eh04/12/2005
04060300202/01/200410012703Diagnostic information for intermittent vehicle no crank dead battery. *eh03/10/2005
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
385710019211Supplement to bulletin 05-01-37-002a, poor rear heat performance . *ak02/21/2006
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
0157801/01/200410005421Cooling fan operation. sit bulletin 1413381. *tt02/25/2004
0810B01/01/200400810C10005383Tick noise at idle. *tt02/24/2004
ENGINE AND ENGINE COOLING - ENGINE
PIP-4492P08/01/201010036464Buick/cadillac/chevrolet/gmc/hummer/pontiac/saab: oil consumption and/or exhaust smoke-possible pcv baffle or lifter concern. upon inspection, obvious oil will be found in the intake manifold and/or pcv vacuum tube. *pe03/16/2011
PIP-4492P09/01/2010PIP-4492Q10036464Buick/cadillac/chevrolet/gmc/hummer/pontiac/saab: oil consumption and/or exhaust smoke-possible pcv baffle or lifter concern. upon inspection, obvious oil will be found in the intake manifold and/or pcv vacuum tube. *pe updated 3/21/03/16/2011
06013900204/01/2007060139002B10022260Front blower motor inoperative or may not shut off in extremely low ambient temperature conditions. *kb07/24/2007
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
05060101405/01/200510017409Oil leak under extreme cold temperatures (-34 degrees c) (-30 degrees f) or colder). *tt11/07/2005
3164A10017230Service engine soon light due a diagnostic trouble code p0606 diagnostic trouble code, operate in reduced engine power mode, and potentially stall. *tt10/28/2005
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
04060407606/01/2005040604076A10012723Information on unstable/rough/lumpy engine idle, and low speed vehicle surge, random disturbance or vehicle shudder. *tt03/11/2005
04060404306/01/200410012163Unable to reset engine oil life monitor. *tt02/16/2005
04060403806/01/200410012153Service engine soon light on, p1680. *tt02/15/2005
04060102207/01/200410012109New cylinder bore liner/piston sleeve replacement procedure. *tt02/14/2005
04060405307/01/200410012114Service engine soon light on p0133, p0172. *tt02/14/2005
04060200508/01/200410011205Higher than normal engine coolant temperature gauge readings. *tt01/10/2005
305610010364Check engine light with a p0300 due to 2-4 cylinders misfiring on the same bank of the engine. *tt11/17/2004
315410/06/20063154B10010285Misfire, bump or multiple bumps after a 1-2 upshift. *tt11/09/2004
314201/01/20043142A10010194Broken head bolt repair. *tc11/04/2004
307601/01/200410009626Replacement goodwrench engines - parts which must be swapped from original engine. *tt10/13/2004
308601/01/200410009512Whistle noise from the throttle body area on light throttle acceleration on vehicles with gen iii engines and electronic throttle. *tt10/04/2004
301801/01/200410008804Engine cylinder head cup plug coolant leak. *mj08/23/2004
04060100303/01/200410008663Information on 2nd design balancer hub. *tt08/13/2004
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
02064A01/01/200410007866A dim service engine soon (ses) light may be noted with the ignition key in the accessory position. *tt07/13/2004
0212901/01/200410007805Rough idle or idle shake at times. *tt07/12/2004
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
0176201/01/2004100063094.2 ll8 engine electronic powertrain control module (pcm) restriction. *mr04/28/2004
0174601/01/2004100062894.2 5.3 ll8 lm4 engine with diagnostic trouble code p2120 or p2122 or p2123 or p2127 or p2128. *mr04/27/2004
0174501/01/2004100062524.2l ll8 engine- no crank, no start. *mr04/27/2004
00810A01/01/200400810C10005468Tick noise at idle. *tt02/27/2004
00969A01/01/200400969B10005469Engine whistle noise. *tt02/27/2004
00540B01/01/200410005417Engine oil leak at intake gasket. sit bulletin 1412496. *tt02/25/2004
0157901/01/200410005422Oil pan baffles deleted. sit bulletin 1413402. *tt02/25/2004
03060406010/01/200310004733Information on new spark plugs and gapping. various models including pontiac gto 2004. *tt01/02/2004
03060405510/01/200310004317Service engine soon/check engine light illuminated, misfire or roughness, diagnostic trouble code (dtc) p0300 set. *tt12/02/2003
0141611/18/200310004220Engine oil leak after crank shaft balancer replacement. *tt11/21/2003
0131411/17/200310004094Engine misfire possible diagnostic trouble codes (dtcs) p0300 - p0306. *tt11/18/2003
03060403303/01/2004030604033A10002860Revised diagnostic trouble code p0336. *tt update. to include 2004 isuzu nqr commercial models. *tt09/29/2003
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
ENGINE AND ENGINE COOLING - ENGINE - GASOLINE - BELTS AND ASSOCIATED PULLEYS
0152601/01/200410005463Belt squeal. sit bulletin 1406354. *tt02/27/2004
01526A01/01/200401526B10005413Belt noise squeal or squeak. *mn *mj02/25/2004
ENGINE AND ENGINE COOLING - EXHAUST SYSTEM
320910011817Exhaust moan at idle or parking lot maneuvers. *eh02/01/2005
ENGINE AND ENGINE COOLING - EXHAUST SYSTEM - EMISSION CONTROL
51010/01/2003100162202004 secondary air injection system- in 6 cylinder engine incorporates a new air pump and an electronic air shut off valve. *sc09/02/2005
05060402103/01/200510015005Revised inspection/maintenance (i/m) evaporative emission (evap) system set procedure. *tt05/13/2005
05060401403/01/2005050604014A10014993Diagnostic aids for diagnostic trouble codes p0440, p0455 and/or p0442 - evaporative emission (evap) system leak. *tt05/13/2005
ENGINE AND ENGINE COOLING - EXHAUST SYSTEM - EMISSION CONTROL - CRANKCASE (PCV)
PIP-4492P08/01/201010036464Buick/cadillac/chevrolet/gmc/hummer/pontiac/saab: oil consumption and/or exhaust smoke-possible pcv baffle or lifter concern. upon inspection, obvious oil will be found in the intake manifold and/or pcv vacuum tube. *pe03/16/2011
PIP-4492P09/01/2010PIP-4492Q10036464Buick/cadillac/chevrolet/gmc/hummer/pontiac/saab: oil consumption and/or exhaust smoke-possible pcv baffle or lifter concern. upon inspection, obvious oil will be found in the intake manifold and/or pcv vacuum tube. *pe updated 3/21/03/16/2011

Consumer Complaints

Fail datemilesoccurencesPurchase date
ENGINE AND ENGINE COOLING
06/01/2009
 Low enine power light comes on and vehicle shuts down. sometimes you can restart it with no problems. now it sputters and has very little power. if you turn on anything it makes it worse. it surges and stalls. it chuggs along until you turn off as may electrical items as possible.
10/22/2009430001
 I purchased a used 2004 gmc envoy slt, with an extended warranty from grand prix auto group, hicksville, ny in august 2008. soon after purchasing the car it stalled while we were at a red light. immediately brought the truck back to the dealer and they said they fixed it, may i mention it never stopped stalling. then the speedometer broke again. it constantly says i'm traveling 120 miles an hour. once again, brought it back to the dealer, they tell me i need to go to a gmc dealer, i do, they replace the information cluster and speedometer, had to pay a $ 300.00 deductible. this was in march 2009. driving the other day october 2009 and the speedometer once again says 120. get pulled over, get a ticket for a broken speedometer. the officer was aware i was not traveling at that speed, and even when i tried to explain, wanted to hear none of it. so now here i am again, broken speedometer, engine that stalls often and a summons to boot. i need help and i don't know where else to turn the dealerships are of no help. jacqueline king *tr
03/24/200975000
 Tl*the contact owns a 2004 gmc envoy. while driving approximately 45 mph on normal road conditions, the contact rear-ended the preceding vehicle. there were no damages to the vehicles or the occupants. he pulled over to the side of the road and noticed smoke suddenly appearing from the front end of the vehicle. immediately, the passenger compartment became engulfed in flames. the contact safely exited the vehicle. the police and fire departments were called to the scene and a report was filed. the vehicle was completely destroyed and towed to a collision center. the insurance company was notified; however, the cause of the failure has not yet been determined. the vin was unknown. the failure and current mileages were 75,000.
06/07/200747970112/23/2003
 Tl*the contact owns a 2004 gmc envoy. while driving 55 mph, the contact noticed smoke coming from the rear of the vehicle. she pulled over to inspect the vehicle and noticed that the front end was engulfed in flames. an investigator from her insurance company concluded that the fire derived from the engine compartment. a fire report was filed. the vehicle was completely destroyed. the contact has pictures of the vehicle after the failure. the manufacturer provided no assistance. the failure and current mileages were 47,970. updated 07/15/08 *bf updated 07/15/08
04/29/200764000306/15/2006
 I was driving in town and my speedometer stopped working at 0. the oil gauge is not working, pegged out at the max and my engine light is now constantly on. these events, particularly the speedometer not working, is a major safety hazard. not driving at controllable speeds can lead to an accident and death. the parts and labor to fix this problem is $550. while researching this problem on the internet, i've found out that this is a common problem with gmc's in this year. there should be a recall with the cluster unit on 2004 gmc envoys. gmc should try to prevent deaths that their products may create. *tr
07/19/200637000510/02/2005
 Dt*: the contact stated the vehicle started shaking prior to stalling while driving on the freeway at any speed five times. on each occasion, the check engine light illuminated on the dash. the vehicle has been to the dealership each time. on every occasion the gauges were cleaned and the oxygen sensors were replaced. the problem persists.
03/02/200654480111/15/2003
 First of all my odometer gauge stopped operating. it remained on zero miles while i was driving the vehicle since november 2005. the whole dashboard cluster had to be reinstalled. secondly; the service engine soon light began popping on and the envoy was driving rough. i found out from a gm dealer that the clutch fan froze which caused the water pump to break and the radiator to over heat burst the radiator hose and spew out and leak all of the water and radiator fluid from the radiator. the envoy is now not drivable. i have only had this 2004 envoy since november of 2003. *nm
ENGINE AND ENGINE COOLING - COOLING SYSTEM
11/16/20042000309/10/2004
 1. engine will shut off when making a hard turn: after stopped at a stop sign, i was trying to make a hard turn (steering wheel reached the maximum turning angle) when the engine suddenly shut off itself. it happened three times either tuning left or right (today), but always after stopping and with a hard turning angle. it is such a huge safety defect with all the cars infront and behind you. no repair action has been taken. the problem may be reproduced. 2. turning signals not working after emergency lights used: it happened two times. turning signal lights (left or right) will not work correctly after the emergency lights were in use; instead both left and right turning lights will flash at the same time. it can be reproduced. no repair action taken yet. 3. difficult turning at a hard turn with 4-wheel-drive is on: it is almost impossible to make a hard turn when the 4-whell-drive is on. it happens every time. no repair action taken yet.*ak
ENGINE AND ENGINE COOLING - COOLING SYSTEM - FAN
02/09/200950000
 Tl*the contact owns a 2004 gmc envoy. the contact observed while driving the speedometer displayed an inaccurate reading regardless of the speed being traveled. in addition, there was a malfunction with the headlights remaining on when deactivated. the failure occurred intermittent. the fan clutch failed unexpectedly. the vehicle was taken to an independent mechanic for inspection. the fan clutch was replaced. the contact had concern of the safety risk involved. the failure mileage was 50,000. the current mileage was 57,000.
11/01/20052925010003/15/2004
 Headlights, driving lights and all interior lighting dim and flicker approx every 30 seconds. has been this way for over 10 days, dealer cannot diagnose problem until the service engine soon light comes on, which it hasn't. it is nearly impossible to drive at night with dim, flashing, headlights, and is confusing to other drivers. also, a fan can be heard blowing off & on approx once every minute, and this is with the vehicle completely turned off and the key out of the ignition. this is constant, i'm concerned the battery will be dead and the car won't start, or that the lights will completely go out while i am driving at night. rear passenger door locks suddenly stopped working with the remote and the door unlock switch on the driver's door. i have to climb over the front seat into the back to physically unlock the door to remove my children from the car. *nm
04/22/20044
 2004 gmc envoy developed the following problems: vehicle stalled, turn signals stopped working, blower fan stopped working, and the srs light remains lit.*mr the turn siganls stopped working due to a short in the flasher. the powertrain control module was replaced due to the ses light iluminating. the blower motor fan failed 4 times due to a short in the wires and control head. the vehicle overheated, but the problem could not be diagnosed. the lcd displays, knobs become extremly hot after hours of driving. *jb
ENGINE AND ENGINE COOLING - ENGINE
07/24/200623000509/29/2004
 Gmc envoy suv (4.2) inline 6-cylinder. vehicle has stalled five times intermittently over the past six months. it stalls out when you begin to stop or start to accelerate from a stop or just while idling. luckily it hasn't been when i was trying to pass or merge in traffic. the first time was around 23,000 and the second time 23,500. the next occurrence happened while it was sitting in a parking lot idling and it died after running for 5-8 minutes. i took it to the dealer and they said it was the throttle body that needed cleaning - done. six weeks later and 1500 miles it stalled when i was trying to make a u-turn in st. petersburg and i nearly got rear ended. dealer kept it two days and did nothing since they couldn't duplicate problem and couldn't get anything from the computer. i took it back to the dealer on 7/21 for regular maintenance (oil change, fuel filter change, and a/c repair-bad clutch). the dealer said they had two computer module updates, one to fix stalls. three days later it stalled in jacksonville traffic at a stop light. i have taken it back for a fourth time to the dealer and left for a week. dealer said vehicle idling rough but computer not registering problem so nothing was done, again. i e-mailed gm and i have had no reply in two weeks. i see where a person with a v8 version is having the same problem. this is an accident waiting to happen. *jb
03/20/20064000601/19/2004
 I bought my gmc envoy in january 2004 for approx. $42,000. this car has everything. after about 2 months of the purchase, my gps went out and had been fixed twice. my brakes do not always work --sometimes they slip especially when i need them most -which is scary. gmc said that they have heard about this problem before, but did nothing to resolve the problem. the engine stalls periodically. gmc said they do not know why. the gas gauge and odometer do not work properly. when i brought my vehicle into north county gmc dealership in san diego for repairs i mentioned my gas gauge did not work along with many of the other issues. after they repaired the odometer by replacing the cluster, the gas gauge still did not work. every single time these problems happen i am forced to pay a $100 service charge just so they can look at it and because i am in sales, i am also forced to get a rental car. after all this, i am still quite displeased with gmc. i hate to say it but they are supposed to be the best american car
12/20/20055
 2004 gmc envoy stalls when accelerating from a stop. *ts this problem occurred while in drive or reverse. the vehicle has been taken to be repaired five times but the problem still exist. during the most recent incident the vehicle stalled while making a left turn into traffic. the vehicle was taken to be repaired again and was given back tot he consumer two days later, supposedly fixed. *nm
07/19/2005330001001/13/2005
 I own a 2004 gmc envoy,just purchased in january.i feel very unsafe driving it, for when i try to accelerate it just loses power feels like its gonna die out.the rpms are going up and down when i try to accelerate.it,s gonna end up causing me to get in a wreck.i brought it to dealerhip last thurs,they updated the software in pcm. i had to put it back in shop today for doing the same thing i feel as if they arent gonna find whats wrong b/c the check engine light isnt on and it doesn,t act up all the time.i really feel this is of major concern b/c i,m seeing a lot of complaints posted with this same problem in envoys and trailblazers.i think its time time for a recall don,t ya,ll?
ENGINE AND ENGINE COOLING - EXHAUST SYSTEM
01/08/20101200001
 Speedometer does not work accurately. check engine light came on randomly. is currently out and i was able to pass emissions, hopefully it will remain out. had to replace many parts including the heater core, thermostat and coolant. now i am experiencing a problem with the fan of the car. *tr
02/20/2009760001
 Investigated check engine light. secondary air injection pump failure for emissions. *tr

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