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
05060402403/01/200510015008Revised diagnostic trouble code (dtc) p1172 and dtc p2636. *tt05/13/2005
30873087A10010916Crank no start, stall, hard start, and no cranking rpm. *eh12/16/2004
31933193B10010647Excessive oil consumption. *eh12/03/2004
310701/01/200410010197P0420 and p0430 dtsc in the detroit, michigan area with gen iii v-8 engines. *sc11/04/2004
312101/01/200410010056Exhaust vibration resonance or moan. (2004-2005 gmc denali) *sc11/03/2004
ENGINE AND ENGINE COOLING - COOLING SYSTEM
312101/01/200410010248Exhaust vibration resonance or moan in vehicles with gen iii v8 engines. *tc11/08/2004
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
05060101405/01/200510017409Oil leak under extreme cold temperatures (-34 degrees c) (-30 degrees f) or colder). *tt11/07/2005
3484A3484B10017246Intermittent stall, low power, and hard restart when the vehicle is used during high ambient temperatures and in high altitudes. *tt10/28/2005
3479C10016536Engine knock noise heard at all times. *tt09/20/2005
32323232A100148701999 - 2005 gen ii cold engine misfire at idle with possible p0171 and/or p0174. *tt05/10/2005
305610010364Check engine light with a p0300 due to 2-4 cylinders misfiring on the same bank of the engine. *tt11/17/2004
305501/01/200410009666Service engine soon light with a p0300 misfire due to misfires mainly on cylinder 7. *tt10/14/2004
308701/01/200410009513Crank no start with no cranking rpm spark or injector pulse. *tt10/04/2004
ENGINE AND ENGINE COOLING - EXHAUST SYSTEM
320310011729Resonance noise at idle. *eh01/31/2005
030605008B11/01/2005030605008C10005576Advance service information - exhaust system popping/snapping noise when vehicle is hot, at idle or immediately after vehicle is shut off. *tt bulletin 03-06-05-008, dated 11/01/2003 replaced. *tt03/04/2004
ENGINE AND ENGINE COOLING - EXHAUST SYSTEM - EMISSION CONTROL - CATALYTIC CONVERTOR
311901/01/200410010101Engineering investigation - catalytic converter replacement. *sc11/04/2004
ENGINE AND ENGINE COOLING - EXHAUST SYSTEM - EMISSION CONTROL - CRANKCASE (PCV)
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
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

Consumer Complaints

Fail datemilesoccurencesPurchase date
ENGINE
12/22/2012963161
 On 12/22/12 @ 5pm- shortly after entering onto the freeway, i started losing power. i didn't get higher than 50 mph before the rpm started increasing & my speed started decreasing. i got off the freeway, at the first exit, approximately 2mins after the beginning of the loss of power. found a mechanic that was just closing his shop & asked him to give a quick check too see if i could continue my drive home, 32mins away. the mechanic checked under the hood & under the bottom & guesstimated the problem to be the flywheel. the mechanic also recommended no driving til repaired. i got my avalanche towed home that first night. i towed it to my local auto repair shop on 12/24/12, to get a full diagnostic. i was advised by my local mechanic that my 2005 avalanche w/ 96319 mis, needs a new transmission. my local mechanic advised it may still be under warranty due to mileage, but i have since found out the warranty is 5yr/100000mi. gm is aware of premature transmission failure on the avalanche, but is not fixing it for the consumer. something needs to be done to protect the consumer! *tr
12/22/201296316
 On 12/22/12 @ 5pm- shortly after entering onto the freeway, i started losing power. i didn't get higher than 50 mph before the rpm started increasing & my speed started decreasing. i got off the freeway, at the first exit, approximately 2mis after the beginning of the loss of power. found a mechanic that was just closing his shop & asked him to give a quick check too see if i could continue my drive home, 32mis away. the mechanic checked under the hood & under the bottom & guesstimated the problem to be the flywheel. the mechanic also recommended no driving til repaired. i got my avalanche towed home that first night. i towed it to my local auto repair shop on 12/24/12, to get a full diagnostic. i was advised by my local mechanic that my 2005 avalanche w/ 96319 mis, needs a new transmission. my local mechanic advised it may still be under warranty due to mileage, but i have since found out the warranty is 5yr/100000mi. gm is aware of premature transmission failure on the avalanche, but is not fixing it for the consumer. something needs to be done to protect the consumer!
ENGINE AND ENGINE COOLING
08/13/200514680
 Vibration in the engine at 50-58 mph, found water in in transmission. replaced torque converter and reconditioned transmission. still experiencing leaks at 57k, fluid was replaced and flushed and minor slipping in first gear.
11/20/200958290
 Tl*the contact owns a 2005 chevrolet avalanche which was purchased on december 31, 2007. she stated that the heater on the vehicle failed. a certified mechanic found that coolant was being utilized but could not determine where. upon further investigation, her mechanic found coolant and several cracks in the head gasket. there were no recalls for the failure. the failure and current mileages were under 58,290.
03/15/20051500301/18/2005
 On 3/15/05 the new gto oil pump failed. returned to dealer on 3/16/05. on 4/07/05 the car was returned to us and we were told it was perfect!the next day 4/08/05 the car was returned to the dealer. the car was repaired that day, and we were told it was now fixed!!! two [2] days later on 4/11/05 the car was again returned to the dealer. the car is still at the dealer, it is not fixed, it is a piece of used and repaired , broken car. we paid for a new 4oo hp gto, and now after all this agony have had to pay an attorney $4000.00 to get this mess taken care of. this car on the first day of ownership had a problem with all the windows, execpt the windshield, a spotty and discoloring. this i reported that day. this is a joke, gmc will not help it's customers for any reason. the dealer, early on in this mess asked gmc to exchange cars for me, nope! they said it has to go thruogh the process. the process is a failure!!!! now i want my investment plus!!! your costomer service is a joke!! i was guaranteed answers to my questions and promised a call back and it never happened!!! one gentleman mr. jarret, said i will call you in 10 [ten] days . so i can get to the bottom of this. may fisrt was 10 [ten] days. i had to contact mr. rick wagoner's office 7 [seven] times before mr. jarret retuned his promised call! i can go on and on with documation about the wat this was mishandled. we wre treated as lairs. while the whole time it was gmc>

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