Bulletins


BulletinBulletin dateReplacement BulletinItem no.SummaryAdded
ENGINE AND ENGINE COOLING - ENGINE
PIP-485111/01/201010037492Ready05/24/2011
PIP-485111/01/201010037492Gm: there is an intermittent engine light on due to five possible internal trouble codes. there may also be an extended crank after filling the fuel tank. *rm05/24/2011
PIP-485112/01/2010PIP-4851A10037492Gm: there is an intermittent engine light on due to five possible internal trouble codes. there may also be an extended crank after filling the fuel tank. *rm updated 5/31/11. *pe05/24/2011

Consumer Complaints


Fail datemilesoccurencesPurchase date
ENGINE AND ENGINE COOLING
02/22/201185000
 Tl* the contact owns a 2004 chevrolet silverado 1500. the contact stated that there was a large water leak in the vehicle in which he believed could possibly have been anti-freeze. the vehicle was not repaired. in addition, the speedometer malfunctioned and while parked, the speedometer indicated that the contact was traveling 90 mph. the vehicle was inspected by the dealer and they advised him that the head was fractured and the instrument cluster would need replacing. the vehicle was not repaired. the failure mileage was approximately 85,000. the vin was unavailable.
02/22/201185000
 Tl-the contact owns a 2004 chevrolet silverado 1500. the contact stated that he noticed that there was a large water leak and that it might be anit-freeze. the vehicle was inspected by a dealer and they advised him that the head had fractured. the vehicle has not been repaired. in addition, the speedometer has malfunctioned by him having his vehicle in park and it would read 90 mph. the vehicle was inspected for this failure as well and they advised him that he would need to have the cluster replaced. the vehicle was not repaired for this failure either. the failure mileage was approximately 85,000. the vin was unavailable. tb
12/02/2009880001
 Tl*the contact owns a 2004 chevrolet silverado 1500. the contact stated that the motor was cracked which caused oil and antifreeze to combine and emit through the exhaust pipe. the heat failed to operate normally and the contact observed that approximately one gallon of antifreeze and 2 quarts of oil leaked out of the vehicle. the identical failure occurred previously. a local mechanic confirmed that the engine was cracked between cylinder 3 and cylinder 5 and needed to be replaced. the manufacturer advised her to have the vehicle inspected by an authorized dealer although her warranty was not valid for the repair. the vehicle has not been repaired. the current mileage was approximately 89,000. the failure mileage was approximately 88,000. updated 12/30/09 *bf updated 01/04/10. *jb
07/14/20081
 The intake gasket on my 2004 chevy silverado is leaking antifreeze. i have 80,000 or so on the vehicle and it has the 5.3 v8 engine. i have talked to a number of people who are having the same problem on this engine and others. i talked to chevy and you know what happened there. this is not normal wear. how can so many of us have the same problem and g.m not know? please help!!! *tr
05/12/200880000
 Tl*the contact owns a 2004 chevrolet silverado 1500. the contact noticed oil leaking from the differential cover, which caused the cover to rust and crack to the bottom of the differentials. he called the dealer and was informed that it was not under warranty or recall. he decided to repair the vehicle himself by ordering aftermarket parts to repair the defect. the contact believes that the differentials should not be rusting after three years. the current and failure mileages were 80,000.
05/01/200857203110/15/2004
 2004 chevrolet silverado intake gasket leak. consumer states that the gasket was leaking 3 quarts of anti-freeze. *kb
09/09/2007120000112/04/2003
 Tl*the contact owns a 2004 chevrolet silverado 1500. after putting gas in the vehicle, the contact smelled smoke. he checked underneath the hood and saw no signs of a fire. while driving 20 mph, flames and smoke began to come from the vents and the contact exited the vehicle. approximately twenty minutes later, while waiting for the fire and police departments to arrive, the tires and windows exploded and the vehicle was burned beyond recognition. he spoke with the dealer and was informed that there were no recalls on the vehicle. a police report was filed. there was no current mileage because the vehicle was destroyed. the failure mileage was 120,000.
05/06/200640000207/29/2004
 Speedometer quit working. oil gauge is starting to act up. *ak.
08/16/2006203/10/2004
 Tl*- the contact's vehicle had a coolant leak and cracked heads. the contact stated that general motors wasaware of this problem. there was a service bulletin already posted. the contact stated that he took vehicle into dealership for a pressure check, and dealership found that all of the leaks were on the inside of the vehicle. the contact stated that general motors was refusing to service his vehicle because itwas out of warranty, even though they have service bulletin released regarding this problem. *ak updated 01/31/07. *jb
ENGINE AND ENGINE COOLING - COOLING SYSTEM
07/21/201178350
 On july 21 my 2004 chevrolet silverado overheated and had a sudden loss of power. the problem was a direct result of a cracked head that leaked all of the engine coolant into the oil pan. this defect is a known defect to gm per a technical service bulliten that was issued in 2007. the bulliten number is #06-06-01-019b and covers engines manufactured from 2001 to 2006. chevrolet has offered to only replace the cracked heads which does not address the issue of the coolant that entered the oil system which can and will cause severe safety issues later in the vehicles life.
05/10/200967000
 Tl* the contact owns a 2004 chevrolet silverado 1500. the contact stated that the harness and resistor fan for the air condition were replaced three times, as it continued to burn out. the contact stated that the resistor fan caught on fire and smoke was seen coming from the vehicle. the contact stated that the repair was $100 each time the failure occurred. the manufacturer was contacted who advised that the vehicle be taken to the dealer for a fee of $89 for them to inspect and replace the parts. the failure mileage was 67,000 and the current mileage was 89,000.
05/10/200967000
 Tl-------- the contact owns a 2004 chevrolet silverado 1500. the contact stated he had to replace the harness fan and resistor fan for the air condition and the third has burnt out. there was smoke coming from the passenger side where the resistor fan caught on fire. no one was injured. the parts are not under warranty. the contact stated each time the replacement parts cost $100 each time he had to replace them. the manufacturer was contacted who stated he should take his vehicle to the dealer for a fee of $89 for them to inspect and replace the parts. the failure mileage was 67,000 and the current mileage was 89,000.
05/10/200967000
 Tl-the contact owns a 2004 chevrolet silverado 1500. the contact stated he had to replace the harness fan and resistor fan for the air condition and the third has burnt out. there was smoke coming from the passenger side where the resistor fan caught on fire. no one was injured. the parts are not under warranty. the contact stated each time the replacement parts cost $100 each time he had to replace them. the manufacturer was contacted who stated he should take his vehicle to the dealer for a fee of $89 for them to inspect and replace the parts. the failure mileage was 67,000 and the current mileage was 89,000...mw
12/08/2010120000
 Tl-the contact owns a 2004 chevrolet silverado. while reversing and depress the brake the pedal went all the way to the floor causing the vehicle to crash into the deck. he noticed brake fluid draining from under the driver seat. the brake line was ruptured badly. whenever the air condition is turned on it blows hot air on the driver side and cold on the passenger side. you have to turn the engine off and then on to reset the problem. the vehicle was towed to a mechanic shop who will inspect the failure. the vehicle was taken to the dealer previously at 20,000 when he had brake failure and was told it was a lack of maintenance on his part. there was no other injuries to any one. the dealer or the manufacturer was not notified. the failure mileage was 120,000.-mw
ENGINE AND ENGINE COOLING - ENGINE
07/21/201178350
 On july 21 my 2004 chevrolet silverado overheated and had a sudden loss of power. the problem was a direct result of a cracked head that leaked all of the engine coolant into the oil pan. this defect is a known defect to gm per a technical service bulliten that was issued in 2007. the bulliten number is #06-06-01-019b and covers engines manufactured from 2001 to 2006. chevrolet has offered to only replace the cracked heads which does not address the issue of the coolant that entered the oil system which can and will cause severe safety issues later in the vehicles life.
11/25/20051110001
 Vehicle would lose antifreeze after 2 hour trips and knocking in the engine. gmc replaced the lifters in 2005. nothing changed, 2007 had the antifreeze issue corrected by replacing intake. speedometer went out at 90,000 miles. at 100,000 miles started losing oil pressure, had oil pressure switch replaced, at 111,000 miles bearings went out had to replace engine, this vehicle has been extremely costly for me. *tr
07/20/200895000
 Tl*the contact owns a 2004 chevrolet silverado 1500 which was purchased in 2004. the vehicle made a buzzing sound while shutting off as if it were continuing to run. upon restarting the vehicle it made a humming noise. there were no warning lights illuminated. the dealer stated that the engine remained on even upon removal of the electrical fuse. he also stated that he would not be able to make the necessary repairs and to make an appointment for the following week. the failure mileage was 95,000 and the current mileage was 95,200.
06/01/2008770001
 Started engine one morning, heard knocking from lower half engine. mechanic said engine has lower bearing problems. need new engine. *tr
07/20/2007104/30/2004
 Tl*the contact owns a 2004 chevrolet silverado 1500. while the vehicle was parked, the vehicle caught fire. the fire and police departments arrived and confirmed that the fire originated from the engine. a fire report was filed. the dealer and manufacturer have not been notified. the contact stated that her carport was damaged due to the fire. the current and failure mileages were unknown.
ENGINE AND ENGINE COOLING - EXHAUST SYSTEM
07/09/20121885001
 Emissions defect concerning broken exhaust manifold bolts. due to this issue truck can not pass arizona state inspection do to engine light coming on. thousands of silverado, sierra, suburban, tahoe, yukon and even escalade owners have spent millions on this problem after their warranties ran out and some can't renew their licenses for failing an etest because of it. please help get gm to recall this. *tr
ENGINE AND ENGINE COOLING - EXHAUST SYSTEM - MANIFOLD/HEADER/MUFFLER/TAIL PIPE
07/26/200751000108/05/2004
 Normal use caused significant need for repair of brakes, emission system, and engine. *tr