Bulletins
| Bulletin | Bulletin date | Replacement Bulletin | Item no. | Summary | Added |
|---|---|---|---|---|---|
| POWER TRAIN | |||||
| 990730016A | 10/01/2002 | 990730016B | 10007838 | Diagnostic information for intermittent transmission downshift, slip, busy/cycling tcc or noisy cooling fan. *tt | 07/12/2004 |
| 01410 | 11/18/2003 | 10004214 | Poor performance from a stop in 2wd, auto or 4wd hi. 2003, 2003 cadillac ext also included. *tt | 11/21/2003 | |
| 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 |
Consumer Complaints
| Fail date | miles | occurences | Purchase date |
|---|---|---|---|
| POWER TRAIN - AUTOMATIC TRANSMISSION | |||
| 02/23/2004 | 50400 | 1 | 05/11/1996 |
| Transmission started slipping and stopped shifting into 3rd gear at 50,000 miles. was rebuilt at trans service shop. cause was lack of ground wire between control module and transmission causing erratic fluid pressures. i paid the $1470.00 repair bill. tsb described the defect, i was not notified. this was preventable from chevy's perspective.*ak | |||
| 3 | |||
| Consumer noticed that while traveling, transmission goes out during passing gear. consumer is now on 3rd transmission. *ak | |||
| 04/21/2001 | 4 | 10/08/1999 | |
| When accelerating from a stop vehicle would not go into gear properly. vehicle would not go from one gear to another. dealer contacted.*ak consumer states that the transmission is currently changing correctly, however now there is a fluid leak, dealer wants to charge consumer for these repairs. *slc | |||
| 10/31/2001 | 1 | 03/01/1998 | |
| Z71 truck transmission failed at 55,000 miles. gm states that my vehicle is in excellent condition & that there was nothing that i did to cause the failure. gm service bulletin (doc. #225207) states that the vcm can cause erratic line pressure with the 4l60-e transmission. although the bulletins are for tech. info only, this service bulletin documents a known pre-existing defect that can lead to premature transmission failure due to the vcm communicating intermittent, erratic, unstable line pressure. the bulletin addresses the problem & potential failure or damage versus being informative & tools needed for the job. because consumers are not notified of bulletins, they end-up paying for these repairs out of pocket, never knowing they stem from factory defects & could be repaired for little or nothing. notification precludes additional problems & expense that could be covered by the warranty or hidden warranty (so called good will program).*ak | |||
| 03/10/2000 | 2 | ||
| This is the second transmission that failed at 10,000 miles on replacement. exact thing happend loud noise lost forward gears and reverse and forward came back without reverse. this vehicle has never been used to tow.*ak | |||
| 03/10/2000 | 2 | ||
| 1st transmission went at 37,000 on 3/10/2000 2nd transmission went on 06/24/2001 with only 10,000 mi on it. 7 1996 vehicles around the same mileage that we know have had to be replaced. thank you. *ak | |||
| 03/09/2001 | 1 | ||
| I was told that transmission failed because a modifacation was not made .why was i not notified ?*ak | |||
| 01/01/2000 | 0 | ||
| Consumer was traveling on highway and heard a noise. was able to pull over to shoulders. vehicle was towed to dealership, and mechanic told him that transmission needed to be replaced. *ak | |||
| While driving on a side street and giving vehicle gas rpms would go up, but vehicle would not move due to transmission going out. dealrr has not seen vehicle. *ak | |||
| 06/23/2000 | 1 | ||
| While driving transmission exploded, resulting in a vehicle fire. manufacturer has been notified. *ak when explosion occured there was a bad smell of transmission fluid. after pulling over the vehicle, heavy smoke poured out from under the hood, and the vehicle burnt completely. *yh | |||
| 03/15/2000 | |||
| Transmission experiences problem with loss of 3rd. and 4th. gear. dealer notified, and vehicle is being repaired. *ak | |||
| 10/01/1999 | |||
| While driving at 55 mph transmission/ egr valve and headlight's went out. when making a right turn the transmission started to slip, and the consumer was unable to to get the vehicle into reverse. *ak | |||
| 04/15/1997 | 1 | 01/27/1996 | |
| Transmission failed. | |||
| POWER TRAIN - AUTOMATIC TRANSMISSION - COOLING UNIT AND LINES | |||
| 11/18/1998 | |||
| While doing some repair work and by the vehicle being in the driveway, consumer noticed a tranmission fluid coming from the vehicle, and the tranmission rubbing across the exhaust pipe. tranmission fluid was getting on the exhaust pipe. consumer took the vehicle to the dealer and they repaired the vehicle. *ak | |||
| POWER TRAIN - AUTOMATIC TRANSMISSION - LEVER AND LINKAGE - COLUMN SHIFT | |||
| 12/30/1997 | 1 | 03/01/1996 | |
| During blizard road conditions on way to work 4-wheel drive did not engage. i think this gave me a false sense of security and should be handled as a safety issue. *ak | |||
| POWER TRAIN - AXLE ASSEMBLY | |||
| 2 front axles failed within 90 days while driving at approximately 70 mph, and in traffic which could have caused crash. *ak | |||
| POWER TRAIN - CLUTCH ASSEMBLY - PEDAL/LINKAGE | |||
| Driver could not disengage the running gear from the motor, causing spring to break in clutch pedal. please provide further details.*ak | |||
| POWER TRAIN - DRIVELINE - DIFFERENTIAL UNIT | |||
| 07/15/1996 | 1 | 04/01/1996 | |
| Bearing spun in housing destroying the complete differential assembly. | |||
| 05/28/1997 | 1 | 01/27/1996 | |
| Rear differential pinion seal failed. | |||
| POWER TRAIN - DRIVELINE - DRIVESHAFT | |||
| 02/01/1999 | 1 | ||
| Driveshaft yoke seal failed resulting in all rear axle bearings having to be replaced. nlm | |||
| POWER TRAIN - MANUAL TRANSMISSION | |||
| Driver could not disengage the running gear from the motor, causing spring to break in clutch pedal. please provide further details.*ak | |||
| 1 | |||
| Vehicle does not decelerate when releasing gas pedal, engine stays at high rpm's causing extended stopping distances before manually slowing down. mjs | |||
| POWER TRAIN - TRANSFER CASE (4-WHEEL DRIVE) | |||
| 04/20/2005 | 58000 | 3 | 07/10/2001 |
| Since purchased from maher chevrolet in 2001, the c clip in the transfer case has broken three times and we have never used the 4 wheel drive. this occurs during normal driving! the first time was within months after owning the vehicle. the second time was 30,000 miles after it replaced. now less than 20,000 miles later, its broke again. there must be something defective internally in the transfer case. when driving and the c clip breaks, the gears start grinding loudly. you can not exceed 3 - 5 miles per hour. since this is an instant movement, this can cause an accident wehn travling on the interstate. which my husband frequently does while driving to work. the warranty has expired on the vehicle and i don't understand why this problem has not been fixed since it was brought back to the dealer on two occasions and supposedly, fixed then. is the dealership the problem or am i dealing with unsafe defect with the transfer case. i will list the approx. date that the dealership looked at my truck last, and then wanted to charge me over $2,500 to investigate why the c clip keeps breaking. | |||
| 1 | |||
| The transfer case failed. nlm | |||