Bulletins


BulletinBulletin dateReplacement BulletinItem no.SummaryAdded
POWER TRAIN
990730016A10/01/2002990730016B10007838Diagnostic information for intermittent transmission downshift, slip, busy/cycling tcc or noisy cooling fan. *tt07/12/2004
POWER TRAIN - AUTOMATIC TRANSMISSION
01073002105/01/2001619742This technical service bulletin states that technicians may experience difficulty in removing the connectors from the park / neutral position switch, usually when trying to remove the switch during transmission service. *tt06/26/2001
POWER TRAIN - AUTOMATIC TRANSMISSION - LEVER AND LINKAGE - COLUMN SHIFT
020730024A08/01/2005020730024B634999Diagnosis of cracked or broken transmission case. *tt 2006 and prior cars and light duty trucks. *tt10/11/2002

Consumer Complaints


Fail datemilesoccurencesPurchase date
POWER TRAIN
07/10/1996
 Failure on the speedometer, when driving the speedometer reading is incorrect. please describe in more details. *ak
03/28/19968
 Speedometer sticks. *sd
03/01/19951
 Speedometer is not functioning correctly, more than 16% off at 60 mph. tt
POWER TRAIN - AUTOMATIC TRANSMISSION
10/15/1998106/01/1995
 The transmission completely failed while on the highway. i had the vehicle towed to a transmission repair facility, and was told that the transmission had water in it, which corroded all of the parts. the source of water in the system was the cooling system for the transmission fluid which runs through the radiator. the line had a hole, and pressure in the radiator forced water into the line causing the failure. i had the transmission rebuilt and an external cooling system installed. the cost for the repairs was approximately $1500. at the time, the vehicle was only three years old, and did not have especially high mileage, yet the transmission repair was not covered under the warranty. *ak
1003/01/2000
 No summary listed for above vehicle. *ak
10/15/2000104/01/1995
 Transmission locked up on hwy. @ 65mph rear wheels lock for a second and then unlocked which destroyed trans. paid to have a gm rebuild installed @39000 miles. rebuild did the same this @42000 miles. gm said so sorry. sounds like gm has a major trans. problem. did not expect to have trans. failure at this milage.
09/25/1998109/01/1994
 Shift problems. transmission replaced with srta. *ak
11/05/199711/01/1994
 No warning.. transmission went... have contacted many about this truck and getting no place at all !!! refuse to buy another chevrolet
404/01/1995
 Continuous problem with poor driveability and engine surges, several repairs/replacements, including replacement of egr valve and transmission, however problem is still not rectified.
01/28/1999105/01/1998
 Without any indication or service issues, transmission failure occured. i drove the truck to work, and after parking, the ability to go in reverse failed. i was told by the closest gm dealer that the transmission had failed, and it is not covered under warranty. *ak
 At 65,000 miles transmission malfunctioned, causing the vehicle not to downshift. cause unknown. dealer replaced the shift solenoid, which did not correct the problem. please give any further details. *ak
01/04/1999102/01/1995
 The dip stick is rusted! i will have to see if there is rust in my transmission. how could this happen? chevrolet knows this is a problem area and did not tell the consumer.
 Transmission dip stick has rusted, causing the transmission to go out.
07/29/1998109/15/1995
 Automatic transmission had failed at 44,000.
 At 70,000 miles the transmission blew, please describe . *ak
10/24/1994
 When the vehicle is in motion the transimission does not change gears. *ak
08/15/1995
 Transmission failure, 30-50% loss of power when the fan clutch engages, equipped with automatic transmission with a v6 engine. tt
 Transmission fluid is leaking on brand new vehicle. tt
POWER TRAIN - AUTOMATIC TRANSMISSION - CONTROL MODULE (TCM, PCM)
01/02/1996
 Braking system malfunctioned. while driving from good traction onto bad traction, braking system will result in extended stopping distance which may cause a crash. also on a regular stop vehicle loses all power brakes. there is a recall for this problem, but the manufacturer stated that this vehicle is not included in the recall althiugh it has the same problem. *ak
POWER TRAIN - AUTOMATIC TRANSMISSION - GEAR POSITION INDICATION (PRNDL)
03/15/2001307/01/1995
 The shifter plate seal on top of the transmission failed. after the third attempt by the dealer to repair the seal, they informed me that the shifter assembly was re-engineered and that i would have to pay for replacement of affected parts. in my belief this should have been a recall since it can cause serious transmission failure due to los of fluid and possible personal injury due to transmission lock up. please investigate this problem.*ak
POWER TRAIN - AUTOMATIC TRANSMISSION - LEVER AND LINKAGE - COLUMN SHIFT
11/01/200004/01/1995
 4-wheel drive assembly not working. noise in front end due to 4wd locked and frequently does not disengage or engage.
01/16/19962
 Transfer case switch failed, would not go into 4 x 4 high. mjs
06/21/1995105/19/1995
 Transfer case assembly failed.
02/13/1997112/21/1994
 Noise in front end due to wheel 4wd locked in vac switch sticking, failure of the switch assembly.
07/01/1995106/01/1995
 Couldn't switch from 2wd to 4wd due to electrical problem in transfer case.
10/22/1995
 Went forward while the gears indicated park and hit a tree. please describe. tt
POWER TRAIN - AXLE ASSEMBLY
03/11/1999
 Left rear axle broke away from wheel drum, still attached while driving, caused vehicle to swirl. hit an embankment and turned over on its top. driver sustained injuries. dealer/manufacturer notified. also tow truck driver informed consumer that this was the third incident concerning rear axle breakage. *ak
05/01/19951
 Front/rear axles leaked oil.
POWER TRAIN - AXLE ASSEMBLY - AXLE SHAFT - SEAL
01/09/1996
 Due to the defective rear axle seal, fuel leaks all over rear brakes, causing rear brakes to be inoperative, resulting in extended stopping distance, which may result in an accident. please provide further information. *ak
12/01/19981007/12/1997
 Uv joints/oxygen sensor/fuel injector/transfer case seals/windshield wiper motor/speedometer and catalytic converter failed.
POWER TRAIN - CLUTCH ASSEMBLY
1
 Heat from driving causes the clutch to stick due to defective clutch master reservoir, this causes the truck to lunge forward or in reverse if consumer tries to disengage gear in traffic. yh
09/30/199904/01/1995
 While driving on the freeway all of a sudden the clutch went out completely, no prior warnnig. contact dealer for repairs. *ak
05/31/1995
 No locking mechanism on manual transmission. if vehicle is bumped or clutch hit could result in an accident. tt
POWER TRAIN - CLUTCH ASSEMBLY - PEDAL/LINKAGE
06/20/1996102/01/1995
 A/c system failure due to pin-hole in evaporator ,system replaced and recharged then a/c compressor piston failed and was replaced,along with condensor .a/c compressor failed again for the second time when system failed to circulate refidgerant .front caliper seized and caused the vehicle to spin when engaged in rapid stopping,the caliper was severely worn ,while only having 25,000 miles at the time,the remaining calipers were showing minimal wear at that time.probems in the transmission from whining in gear, to rough shifting ,to whining while in neutral, began with less than 15,000 miles on the vehicle. problems remained even though the dealer mechanics stated no problem was fuond.troubles remained after multiple transmission services were performed at full cost to me. no satisfaction was received . the transmission continued to shift rough ,whine in and out of gear until the clutch had to be replaced showing a worn throw-out bearing as the cause of the whining
05/01/19951
 Clutch throw out bearing failed. *skd
06/07/19957
 Clutch slave cylinder throw out bearing failed. *ak
03/24/19951
 Hydraulic clutch line routed on top of exhaust manifold melted and clutch failed. tt
POWER TRAIN - DRIVELINE - CONSTANT VELOCITY JOINT
03/01/1999
 Universal joints rusted out at 25,000, and vehicle made loud noise. dealer contacted and remedied problem at owners expense. installed new universal joints. *ak
12/01/19981007/12/1997
 Uv joints/oxygen sensor/fuel injector/transfer case seals/windshield wiper motor/speedometer and catalytic converter failed.
POWER TRAIN - DRIVELINE - DRIVESHAFT
05/01/1997111/01/2094
 Two drive shaft failures of oem drive shafts. would start as vibration then the u-joints would lock. could have resulted in power train failure and a dangerous condition. dt
12/18/1998202/01/1997
 Gm call this a constant velocity prop shaft (drive shaft) the design uses 5 u-joints. i had to have the drive shaft rebuilt after 45000 miles. i contacted several shops in the detroit / ann arbor area that specialize in drive shaft repair. they informed me that they have seen several of these shafts with the same problem. none of them has seen a shaft last beyond 50,000 miles. i have a contact at american axle (oem for shaft) who helped in the design for that shaft and was told it was designed to last for 100,000 miles (thats why there are no grease zerks(fittings) on the u-joints). the first repair cost me $250, and the shop did a lousy job because this shaft (which is in two parts) is very difficult to balance. now i must have it repaired again. (i'll never buy a gm product again!!!!!)
 When traveling, applying the brakes, and upon making a gradual stop, vehicle skided to a stop. also, vehicle was placed in the park position with the emergencyparking brake enganged, vehicle rolled away freely. in addition, driveshaft separated while driving. consumer has contacted the dealer. please provide any further details. *ak
05/05/1997211/01/1995
 No summary
06/01/1998110/18/1997
 Rear universal joint failed. (qc-aw)
01/19/1997
 The driveshaft came apart from the u joint when the vehicle was in motion, the u joint is attached to the power train. consumer has yet to have the parts replaced.
12/29/19949
 No power transmitted to drive wheels, often while trying to merge. *dsh
POWER TRAIN - DRIVELINE - UNIVERSAL JOINT
06/01/1998110/18/1997
 Rear universal joint failed. (qc-aw)
POWER TRAIN - MANUAL TRANSMISSION
06/20/1996102/01/1995
 A/c system failure due to pin-hole in evaporator ,system replaced and recharged then a/c compressor piston failed and was replaced,along with condensor .a/c compressor failed again for the second time when system failed to circulate refidgerant .front caliper seized and caused the vehicle to spin when engaged in rapid stopping,the caliper was severely worn ,while only having 25,000 miles at the time,the remaining calipers were showing minimal wear at that time.probems in the transmission from whining in gear, to rough shifting ,to whining while in neutral, began with less than 15,000 miles on the vehicle. problems remained even though the dealer mechanics stated no problem was fuond.troubles remained after multiple transmission services were performed at full cost to me. no satisfaction was received . the transmission continued to shift rough ,whine in and out of gear until the clutch had to be replaced showing a worn throw-out bearing as the cause of the whining
01/21/1999111/01/1998
 No summary
12/28/19958
 Defective transmission.
08/22/19952
 Transmission stuck in 5th gear. *ak
04/27/19957
 Noise in transmission when shifting. *skd
POWER TRAIN - TRANSFER CASE (4-WHEEL DRIVE)
07/14/2005407/14/2005
 Stuck in 4x4 high can't change back to 2x4 or 4x4 low. *nm