Bulletins
| Bulletin | Bulletin date | Replacement Bulletin | Item no. | Summary | Added |
|---|---|---|---|---|---|
| POWER TRAIN | |||||
| 00773 | 10017190 | 4l60e, 4l65e replacement valve body gaskets does not seem to fit. *tt | 10/27/2005 | ||
| 3276 | 10013496 | 4l80e output carrier thrust washer changes. *tt | 04/20/2005 | ||
| 3054 | 01/01/2004 | 10009665 | Replacement flexplate may have larger bolt holes than the original flexplate. *tt | 10/14/2004 | |
| 3002 | 3002D | 10008802 | 4l60e/4l65e intermittent neutral condition while accelerating from a stop or while driving. *tt 1999-2006 gm cars, light duty trucks and utilities. *tt | 08/23/2004 | |
| 01599 | 01/01/2004 | 10007237 | 4l60e, 4l65e forward and low reverse waved steel clutch plate appearance change. *tt | 06/04/2004 | |
| 020421005A | 02/01/2003 | 020421005 | 10001110 | Slips in 4-wheel drive, noise, vibration, leaks, hot odor. *tt | 04/15/2003 |
| 020421005 | 06/01/2002 | 634905 | Some vehicles will not move when 4-wheel drive is requested, noise, shudder, poor performance, transmission / transfer case slips, transmission will not upshift, slips in 4-wheel drive. *tt | 10/10/2002 | |
| POWER TRAIN - AUTOMATIC TRANSMISSION | |||||
| 030730056 | 11/01/2003 | 10005566 | 4l60-e automatic transmission oil pump first and second design identification. *tt | 03/04/2004 | |
| 00702 | 01/01/2004 | 00702B | 10005476 | Slip condition in 2nd, 3rd or 4th damaged 2-4 band 3-4 clutch on the 4l60e/4l65e automatic transmission. *tt *mj | 03/01/2004 |
| 3259C | 3259E | 10005514 | 4l80e, 4l85e whine noise in first and second gear. *tt | 03/01/2004 | |
| 030730005 | 02/01/2003 | 10001115 | Service engine soon indicator illuminated, transmission slips, engine flare, delayed 2-3 shift, shifts missing, no shift, diagnostic trouble codes p0730, p0756, p0757. *tt | 04/15/2003 | |
| POWER TRAIN - AUTOMATIC TRANSMISSION - CONTROL MODULE (TCM, PCM) | |||||
| 01483 | 01/01/2004 | 10005496 | Vehicle has no pcm (power train control module) communication with tech 2. sit bulletin 1400427. *tt | 03/01/2004 | |
| POWER TRAIN - AUTOMATIC TRANSMISSION - COOLING UNIT AND LINES | |||||
| PIT-4722 | 10/01/2008 | 10026804 | Gmc: fluid leak from transmission oil cooler lines due to corrosion. all 2000-2006 light duty trucks equipped with the light duty automatic transmission. *pe | 12/18/2008 | |
| POWER TRAIN - AUTOMATIC TRANSMISSION - LEVER AND LINKAGE - COLUMN SHIFT | |||||
| 020730024A | 08/01/2005 | 020730024B | 634999 | Diagnosis of cracked or broken transmission case. *tt 2006 and prior cars and light duty trucks. *tt | 10/11/2002 |
| POWER TRAIN - AXLE ASSEMBLY | |||||
| 4030 | 4030A | 10021676 | New design front axle side bearing adjusters. *kb | 06/15/2007 | |
| 3364 | 10014953 | Rear axle retainer button breakage. *eh | 05/12/2005 | ||
| 3001 | 3001A | 10008872 | The service information and owners manual do not show a service interval for the 8.6, 9.5, 9.75, 10.5, and 11.5 inch rear axles with or without g80 (locking differential). *tt 2006 all general motors light duty trucks, vans and utilitie | 08/25/2004 | |
| 030419001A | 09/01/2004 | 030419001B | 10004717 | Use of synthetic front axle lubricant for 4wd vehicles sold in cold weather climates. *tt this bulletin replaced previous bulletin dated 10/01/2003. *tt | 01/02/2004 |
| 030417001 | 06/01/2003 | 030417001A | 10002853 | Whine noise from rear axle. *tt | 09/26/2003 |
| 030418003 | 06/01/2003 | 10002854 | Revised wheel drive shaft inner joint and seal replacement. *tt | 09/26/2003 | |
| 030417001C | 10/01/2005 | 030417001D | 10001136 | Whine noise from rear axle. *tt update. *tt | 04/17/2003 |
| 010102 | 01/01/2002 | 634212 | Product feedback request for vehicle exhibiting rear axle whine condition until may 24, 2002. *tt | 09/28/2002 | |
| POWER TRAIN - DRIVELINE | |||||
| 3300 | 3300A | 10013572 | 4wd models with noise, vibration on dry pavement. *eh | 04/21/2005 | |
| 030419003 | 08/01/2003 | 10012557 | Fluid leak from front of vehicle add teflon tape to front axle vent plug threads. *eh | 03/07/2005 | |
| POWER TRAIN - DRIVELINE - DRIVESHAFT | |||||
| 040495001 | 03/01/2004 | 10008653 | Revised wheel drive shaft nut torque specification. *tt | 08/12/2004 | |
| POWER TRAIN - TRANSFER CASE (4-WHEEL DRIVE) | |||||
| 3424 | 3424A | 10017299 | Electronic transfer case unable to complete shift. *tt | 11/02/2005 | |
| 3526 | 10016558 | Intermittent service 4wd light comes on with diagnostic trouble code (dtc) c0306 or c0308 stored in tccm. *tt | 09/22/2005 | ||
| 3351 | 10014853 | Intermittent malfunction indicator lamp (mil) with diagnostic trouble code (dtc) c0374 or erratic 4wd/awd operation. *tt | 05/10/2005 | ||
| 020421004 | 04/01/2002 | 634899 | Some customers may comment on the service 4wd indicator illuminating with diagnostic trouble code b2725 set. *tt | 10/10/2002 | |
Consumer Complaints
| Fail date | miles | occurences | Purchase date |
|---|---|---|---|
| POWER TRAIN | |||
| 11/15/2003 | 0 | ||
| I have not given permission to the dealership service department to start repairs. they told me it was the rear axle or rear end that was damaged beyond repair and must be replaced. i was quoted a repair cost of $2,400 for a used part and $3,000 for a new part. this truck has around 42,000 miles and was purchased june 1, 2003. i have had multiple problems ranging from replacement of cd's to a door window motor problem. i inquired/complained about a noise in the rear end at around 25,000 miles prior to the breakdown. however, they could not find the problem. the tailgate would fall open when locked occasionally, but this was adjusted after taking it back for repair. i have also replaced one hub assembly on the front of the truck at a cost of $250.00. there is an oil usage problem that requires an additional quart to be added between changes. i personally think that this truck is a lemon and needs to be researched to discern if it has had some previous mechanical problems. although it was purchased new there is a possibility that it could have had some malfunctions before it was delivered. i misplaced my receipts, and i'm not sure that the service department will give me another copy. however, i will search for them as verification that i took the truck in on several occasions for various and sundry complaints. | |||
| 01/16/2004 | 18000 | 1 | 09/01/2002 |
| Transmission and/or rear axle locks up while vehicle is in motion causing erratic vehicle handling and/or life-threatening situation. * cb | |||
| POWER TRAIN - AUTOMATIC TRANSMISSION | |||
| 11/12/2004 | 2 | ||
| Parking brake failure involving 2002 chevrolet avalanche. there was no damage or injury. however, when brought in for repair, i was given a report that states, according to chevrolet technical assistance parking brake is not designed to hold on a down slope and only designed to hold at 8% grade on up slope. this runs counter to the 2002 chevrolet avalanche owners manual, section 7-20, entitled parking brake and automatic transmission park mechanism check which instructs as follows: park on a fairly steep hill, with the vehicle facing downhill and proceeds to give steps for checking the parking brake function that create a clear expectation that the parking brake should function on a fairly steep hill. since bringing my vehicle for requested adjustment/repair, i continue to find that the parking brake will not hold with the vehicle facing downhill on even a modest slope.*ak knowing that i cannot rely on the parking brake, for now i will take other steps to assure safety. i am very concerned for other owners of this vehicle ... for their safety and the safety of their families. if an owner, unaware of this defect, having a driveway of any modest slope, relies on this vehicle's parking brake ... they clearly face the risk of unexpected movement of the vehicle ... risking damage to property or to human life. | |||
| 05/26/2004 | 2 | ||
| While driving 40 mph transmission went into reverse. consumer was able to pull the vehicle off the road. consumer took the vehicle to the dealer for inspection. *ak | |||
| 4000 | 20 | 09/15/2001 | |
| Consumer indicated that there was clucking noise in transmission when accelerating. dealership acknowledged the noise, but was unable to resolve the problem. *ak | |||
| 01/16/2004 | 18000 | 1 | 09/01/2002 |
| Transmission and/or rear axle locks up while vehicle is in motion causing erratic vehicle handling and/or life-threatening situation. * cb | |||
| 09/04/2002 | 2 | 07/06/2002 | |
| 2002 chevrolet avalanche 2500 has a miss in the engine at highway speeds that cannot be fixed at the dealership. chevrolet says it is engine fade and a stiff suspension. it is a power train problem, perhaps in the transmission. it is noticeable with or without cruise control on and pronounced when climbing hills or towing any load. the dealer (larry green chevrolet in blythe ca and chevrolet)both have open files on the problem. another vehicle from the same dealer was repurchased by chevrolet and the replacement vehicle has the same problem. all vehicles are within 100 vin 's of each other.*ak | |||
| 12/14/2002 | 14000 | 0 | 11/16/2002 |
| Transmission/driveline failure | |||
| POWER TRAIN - AUTOMATIC TRANSMISSION - COOLING UNIT AND LINES | |||
| 11/26/2004 | 71000 | 1 | 05/20/2002 |
| Transmission fluid cooler failure. *ak | |||
| POWER TRAIN - AXLE ASSEMBLY | |||
| 12/08/2005 | 81200 | 1 | 07/01/2003 |
| 2002 avalanche with 81,000 miles at the time of the failure...started a few months ago with a very light hum in the back end. on 12/8/05 made several large clunking noises and died (stopped turning). the garage stated that a main bearing had broken apart sending metal throughout the rear axle and destroyed the drive system. $2000.00 job to replace the entire back axle drive system with a used one. mechanic said no reason for that to happen with this vehicle and suggested i speak with the dealer before i had the work done. dealer did nothing except quote me $3000.00 for the same repair and same used part. *nm | |||
| 10/05/2005 | 58077 | 1 | |
| Rear axle locked up and then blew up inside it's housing. *jb | |||
| 01/01/2005 | 15896 | 6 | |
| Mexican assembly factory failure. there was a major failure of the rear axles and parking brake system. *bf the rear axles had grooves worn in them and the rear bearing failed. the consumer requested reimbursement. the parking brake remained inoperative. when the parking brake was released, the acceleration would hang up and a pop would be heard in the rear, there was a rattle behind the steering wheel, and the axle seals leaked. *sc *jb | |||
| 02/01/2005 | 0 | 2 | 05/20/2002 |
| Front and rear differential bearing failure on 02 avalanche at 51,000 miles- brought to dealer before total failure. other similar complaintis can be found in the club avalanche website. this defect could lead to wheels falling off and catastrophic injury. gm is aware of the problem but does nothing . *ak | |||
| 02/07/2004 | 106607 | 1 | 08/13/2002 |
| Overtime i kept hearing a whining noise, smell of oil, heat and light vibration from the driveline. at the dealership on a 100, 000 mile total oil, transmission and coolant change (did this at 97,018 mi. 1/2/04). the mechanic did notice a bit of play in the front & rear driveline (drive shafts from transfer case to the front wheel axle case and the rear axle case), some oil leakage on the right front axle, both sides of the rear axle, this was normal he told me. mechanic found both fine and small pieces of metal in the front 4x4 transmission case, but said this was not a big problem. mechanic suggested that i should have the u-joints replaced sometime on the drive shafts and this would stop the noise and vibration. at coldwater, mi. (1/14/04), i had to replace a right front hub bearing; mechanic reported to me that he would like to inspect the rear axle for noise. mechanic found some play in the driveline u-joints, right rear axle and pinion shaft, and some noise coming from the differential. on 1/26/04 i had both rear & front driveshaft u-joints replaced & balanced (fleet pride said there was some play in them). the noise and vibration stopped, but the oil & hot smell stayed. then the light vibration and some noise (between the speeds of 40-75 mph) started to return in just 150 miles. at 106,606 miles the rear axle started to make a clunking noise and hard vibration then stopped turning at 106,607 miles. i had the rear axle removed and found that the main bearing on the left side of the mechanical locking differential (eaton g-80) had broke apart sending metal through out the rear axle and destroyed axle drive system. i have pictures of the parts & damage to the rear. the front axle is starting the same thing, leaking, hot smell and noise. i have found through your system that they have been having problems and when i asked the dealership about this, they said they are checking into it. service bulletins 03-04-17-001, 03-07-30-005, 02-04-21-005a. *ak | |||
| 01/16/2004 | 18000 | 1 | 09/01/2002 |
| Transmission and/or rear axle locks up while vehicle is in motion causing erratic vehicle handling and/or life-threatening situation. * cb | |||
| POWER TRAIN - AXLE HUBS | |||
| 08/04/2006 | 62438 | 1 | |
| Rear brake dust shields rusted through at 62,438 miles allowing dirt, stone, and other materials into brake system. dust shields replaced. *tr | |||
| POWER TRAIN - DRIVELINE | |||
| 12/14/2002 | 14000 | 0 | 11/16/2002 |
| Transmission/driveline failure | |||
| POWER TRAIN - DRIVELINE - DIFFERENTIAL UNIT | |||
| 08/10/2007 | 92000 | 2 | 02/15/2007 |
| 2002 avalanche emergency brake isn't working and the rear end went out in it yesterday 8/10/07 at 92,000 miles. *jb | |||
| 03/24/2005 | 1 | ||
| 2002 chevrolet avalanche experiencing a loud knocking noise as well as the front end shimmies when going over bumps in the road.***no answer required***. *mr the vehicle was taken to the dealer but they were unable to find a problem. the only problem they found was that the vehicle needed an alignment and new tires. the vehicle was taken to a tire dealer for a second opinion. when the technician removed the rear differential cover broken parts fell out. *nm *nm | |||
| 02/01/2005 | 0 | 2 | 05/20/2002 |
| Front and rear differential bearing failure on 02 avalanche at 51,000 miles- brought to dealer before total failure. other similar complaintis can be found in the club avalanche website. this defect could lead to wheels falling off and catastrophic injury. gm is aware of the problem but does nothing . *ak | |||
| 07/05/2004 | 31300 | 7 | 02/21/2002 |
| Beginning on 06/09/03 and continuing to the current date, my vehicle has had a recurring front differential leak. first 3 repairs were for the differential seals, until it was discovered that the vent tube was plugged, the next 4 times for repair were due to the fact that when this vehicle is driven on a trip for an extended period of time on the highway, the front differential purges the fluid out the vent tube. the last trip i took the vehicle on was a 400 mile round trip and the vehicle underbody was half covered in diff oil, and it continued to drip for 2 days. my concern is a longer trip, which i purchased the vehicle for, would result in the seizing of the front differential at highway speed, possibly causing an accident.*jb | |||
| 02/07/2004 | 106607 | 1 | 08/13/2002 |
| Overtime i kept hearing a whining noise, smell of oil, heat and light vibration from the driveline. at the dealership on a 100, 000 mile total oil, transmission and coolant change (did this at 97,018 mi. 1/2/04). the mechanic did notice a bit of play in the front & rear driveline (drive shafts from transfer case to the front wheel axle case and the rear axle case), some oil leakage on the right front axle, both sides of the rear axle, this was normal he told me. mechanic found both fine and small pieces of metal in the front 4x4 transmission case, but said this was not a big problem. mechanic suggested that i should have the u-joints replaced sometime on the drive shafts and this would stop the noise and vibration. at coldwater, mi. (1/14/04), i had to replace a right front hub bearing; mechanic reported to me that he would like to inspect the rear axle for noise. mechanic found some play in the driveline u-joints, right rear axle and pinion shaft, and some noise coming from the differential. on 1/26/04 i had both rear & front driveshaft u-joints replaced & balanced (fleet pride said there was some play in them). the noise and vibration stopped, but the oil & hot smell stayed. then the light vibration and some noise (between the speeds of 40-75 mph) started to return in just 150 miles. at 106,606 miles the rear axle started to make a clunking noise and hard vibration then stopped turning at 106,607 miles. i had the rear axle removed and found that the main bearing on the left side of the mechanical locking differential (eaton g-80) had broke apart sending metal through out the rear axle and destroyed axle drive system. i have pictures of the parts & damage to the rear. the front axle is starting the same thing, leaking, hot smell and noise. i have found through your system that they have been having problems and when i asked the dealership about this, they said they are checking into it. service bulletins 03-04-17-001, 03-07-30-005, 02-04-21-005a. *ak | |||
| 04/20/2003 | 57000 | 1 | 10/01/2001 |
| The consumer heard a rumbling noise coming from front and rear wheels. the mechanic replaced the front and rear pinion bearings but this did not remedy the problem. later the differential was found to be the problem and it was replaced. *nlm *ts *jb | |||
| 02/01/2002 | 4 | ||
| Consumer states that the front differential is blowing out oil causing other parts of the vehicle to burn, the dealer was unable to fix the problem.*ak. consumer states the gear oil blows on left front brake and all the rubber hose wires, lines tires and running board making the left brake fail when wet.*jb | |||
| POWER TRAIN - DRIVELINE - DRIVESHAFT | |||
| 02/26/2006 | 93000 | 1 | 02/03/2005 |
| Dt*: the contact stated while driving over 20mph there was a loud noise coming from the vehicle. as the speed increases or while driving over potholes the noise increases. the independent repair shop determined the noise came from the rear suspension and the driveshaft. no repairs have been made. | |||
| 02/07/2004 | 106607 | 1 | 08/13/2002 |
| Overtime i kept hearing a whining noise, smell of oil, heat and light vibration from the driveline. at the dealership on a 100, 000 mile total oil, transmission and coolant change (did this at 97,018 mi. 1/2/04). the mechanic did notice a bit of play in the front & rear driveline (drive shafts from transfer case to the front wheel axle case and the rear axle case), some oil leakage on the right front axle, both sides of the rear axle, this was normal he told me. mechanic found both fine and small pieces of metal in the front 4x4 transmission case, but said this was not a big problem. mechanic suggested that i should have the u-joints replaced sometime on the drive shafts and this would stop the noise and vibration. at coldwater, mi. (1/14/04), i had to replace a right front hub bearing; mechanic reported to me that he would like to inspect the rear axle for noise. mechanic found some play in the driveline u-joints, right rear axle and pinion shaft, and some noise coming from the differential. on 1/26/04 i had both rear & front driveshaft u-joints replaced & balanced (fleet pride said there was some play in them). the noise and vibration stopped, but the oil & hot smell stayed. then the light vibration and some noise (between the speeds of 40-75 mph) started to return in just 150 miles. at 106,606 miles the rear axle started to make a clunking noise and hard vibration then stopped turning at 106,607 miles. i had the rear axle removed and found that the main bearing on the left side of the mechanical locking differential (eaton g-80) had broke apart sending metal through out the rear axle and destroyed axle drive system. i have pictures of the parts & damage to the rear. the front axle is starting the same thing, leaking, hot smell and noise. i have found through your system that they have been having problems and when i asked the dealership about this, they said they are checking into it. service bulletins 03-04-17-001, 03-07-30-005, 02-04-21-005a. *ak | |||
| POWER TRAIN - DRIVELINE - UNIVERSAL JOINT | |||
| 02/07/2004 | 106607 | 1 | 08/13/2002 |
| Overtime i kept hearing a whining noise, smell of oil, heat and light vibration from the driveline. at the dealership on a 100, 000 mile total oil, transmission and coolant change (did this at 97,018 mi. 1/2/04). the mechanic did notice a bit of play in the front & rear driveline (drive shafts from transfer case to the front wheel axle case and the rear axle case), some oil leakage on the right front axle, both sides of the rear axle, this was normal he told me. mechanic found both fine and small pieces of metal in the front 4x4 transmission case, but said this was not a big problem. mechanic suggested that i should have the u-joints replaced sometime on the drive shafts and this would stop the noise and vibration. at coldwater, mi. (1/14/04), i had to replace a right front hub bearing; mechanic reported to me that he would like to inspect the rear axle for noise. mechanic found some play in the driveline u-joints, right rear axle and pinion shaft, and some noise coming from the differential. on 1/26/04 i had both rear & front driveshaft u-joints replaced & balanced (fleet pride said there was some play in them). the noise and vibration stopped, but the oil & hot smell stayed. then the light vibration and some noise (between the speeds of 40-75 mph) started to return in just 150 miles. at 106,606 miles the rear axle started to make a clunking noise and hard vibration then stopped turning at 106,607 miles. i had the rear axle removed and found that the main bearing on the left side of the mechanical locking differential (eaton g-80) had broke apart sending metal through out the rear axle and destroyed axle drive system. i have pictures of the parts & damage to the rear. the front axle is starting the same thing, leaking, hot smell and noise. i have found through your system that they have been having problems and when i asked the dealership about this, they said they are checking into it. service bulletins 03-04-17-001, 03-07-30-005, 02-04-21-005a. *ak | |||
| POWER TRAIN - TRANSFER CASE (4-WHEEL DRIVE) | |||
| 02/07/2004 | 106607 | 1 | 08/13/2002 |
| Overtime i kept hearing a whining noise, smell of oil, heat and light vibration from the driveline. at the dealership on a 100, 000 mile total oil, transmission and coolant change (did this at 97,018 mi. 1/2/04). the mechanic did notice a bit of play in the front & rear driveline (drive shafts from transfer case to the front wheel axle case and the rear axle case), some oil leakage on the right front axle, both sides of the rear axle, this was normal he told me. mechanic found both fine and small pieces of metal in the front 4x4 transmission case, but said this was not a big problem. mechanic suggested that i should have the u-joints replaced sometime on the drive shafts and this would stop the noise and vibration. at coldwater, mi. (1/14/04), i had to replace a right front hub bearing; mechanic reported to me that he would like to inspect the rear axle for noise. mechanic found some play in the driveline u-joints, right rear axle and pinion shaft, and some noise coming from the differential. on 1/26/04 i had both rear & front driveshaft u-joints replaced & balanced (fleet pride said there was some play in them). the noise and vibration stopped, but the oil & hot smell stayed. then the light vibration and some noise (between the speeds of 40-75 mph) started to return in just 150 miles. at 106,606 miles the rear axle started to make a clunking noise and hard vibration then stopped turning at 106,607 miles. i had the rear axle removed and found that the main bearing on the left side of the mechanical locking differential (eaton g-80) had broke apart sending metal through out the rear axle and destroyed axle drive system. i have pictures of the parts & damage to the rear. the front axle is starting the same thing, leaking, hot smell and noise. i have found through your system that they have been having problems and when i asked the dealership about this, they said they are checking into it. service bulletins 03-04-17-001, 03-07-30-005, 02-04-21-005a. *ak | |||
| 02/01/2002 | 2498 | 3 | 01/01/2003 |
| I had my chevrolet available to the dealer three times to find oil spraying up on the drivers door they found a crack in the front differ. said they put in some go in the crack and it doesnt need replaced. in my opion the casting in chevy avalnches are deffective and need replaced.*ak | |||