Bulletins


BulletinBulletin dateReplacement BulletinItem no.SummaryAdded
ENGINE AND ENGINE COOLING
312101/01/200410010056Exhaust vibration resonance or moan. (2004-2005 gmc denali) *sc11/03/2004
ENGINE AND ENGINE COOLING - ENGINE
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
010601029B07/01/2002010601029A634805Some customers may comment on higher than expected engine oil consumption. *tt10/09/2002
ENGINE AND ENGINE COOLING - EXHAUST SYSTEM - MANIFOLD/HEADER/MUFFLER/TAIL PIPE
020605005A12/01/200202060500510000726Exhaust / muffler heat shield rattle, popping noise under vehicle. *tt03/27/2003
020605005C10/01/2004020605005B10000458Exhaust/muffler heat shield rattle, popping noise under vehicle. *tt updated *eh02/27/2003

Consumer Complaints


Fail datemilesoccurencesPurchase date
ENGINE AND ENGINE COOLING
32005
 Consumer called complaining about having problems with engine overheating. dealer was contacted, and stated that it was normal. this has occurred over five times. overheating up to over the red sign of overheating. manufacturer was contacted, and stated that they won't do anything.*ak
ENGINE AND ENGINE COOLING - COOLING SYSTEM
 While driving engine check light kept coming on, had vehicle checked sereval times. dealer finally found that water pump had busted. *ak
ENGINE AND ENGINE COOLING - ENGINE
11/15/2008700001
 We own a 2002 denali, that we bought used. the transmission went out around nov. 2008 (appr. 120,000 miles) we had the transmission replaced but the transmission went out again shortly thereafter (around 150,000). through civil litigation, we found out that the transmission had went out previously, at around 70,000 miles. we are wondering if this is a common problem with denalis and if any compensation is available. *tr
07/19/2002592102/15/2002
 Upon first start-up in the morning the engine taps for 10 to15 seconds. the length of time and noise level increases when the vehicle sits for two days. it is parked on level ground and the oil level is good. it sounds to me like a lifter is leaking down. shortly after vehicle was purchased, it was brought back because of an oil leak. the dealer service department disc that the front differential connector on the left side was where the oil was originating from and corrected the loose vent connector. the dealer service invoice doesn't state how much fluid was added if any. service advisor did not know the answer. *la
10/14/20022000009/05/2002
 Engine taps loudly upon startup. this metallic tapping occurs after overnight parking and also if sitting for an hour or so. when driving cold engine, valve clatter occurs before each shift of the automatic transmission. email and telephone correspondence with gm left me with their offer to provide extended warranty on engine, of which i declined. part of their response: we appreciate the opportunity to review your concerns with your 2002 gmc sierra denali. we have examined request number 1-60877406 in which your engine tapping noise is documented with the gmc customer assistance center and we are in agreement with the position previously provided to you. under the terms of the new vehicle limited warranty, our primary responsibility is to repair the vehicle. since this is considered a normal characteristic of the vehicle, there is no repair necessary. we assure you that it will not effect the drivability or safety of your vehicle.
ENGINE AND ENGINE COOLING - ENGINE - GASOLINE - BELTS AND ASSOCIATED PULLEYS
07/02/200648000304/10/2005
 We had heard under the hood loud noise. mainly when we accelerated the vehicle. after assessing the noise, we found that we had a broken tensioner and it was making the belt weak. we called the dealer and replaced the belt and the tensioner, for a total of 3 times. we also found out through a gmc source that this was a common thing for this type of vehicle due to the fact that gmc had not put a filter on the compressor and it would cause it to fail. if there are no complaints then they will not do a recall and this should cost the consumer at least $1,500. last night as my husband followed me on his bike, the tensioner failed again and it threw the belt behind me almost hitting my husband in the head. i cant imagine what it would do to glass or a persons head at 65 mph. this is dangerous and until it results in a fatality, gmc will not recall this. i have also found out that gmc will pay a wrongful death lawsuit as opposed to paying to recall all of their professional grade products. what a shame. i refuse to have this belt fly off and hit someone resulting in death. this is a hazard and gmc should recall all of them. sincerely, kim boggs. *nm