Bulletins

BulletinBulletin dateReplacement BulletinItem no.SummaryAdded
POWER TRAIN
04073100508/01/200410011219Clutch pressure plate wear indicator adjustment. *tt01/11/2005
3104A3104B100099766-speed shifter rattle growl buzz noise. *sc11/02/2004
POWER TRAIN - AUTOMATIC TRANSMISSION
30603060A10009370The engine does not stall when performing a p1870 diagnostic test with the tech 2 scan tool or when commanding the torque converter clutch enable solenoid on applications that do not have the p1870 diagnostic test listed. 4l60e or 4l65e tr09/27/2004
03073005611/01/2003100055664l60-e automatic transmission oil pump first and second design identification. *tt03/04/2004
03073004209/01/200310004324Automatic transmission fluid leak at rear of vehicle. *tt12/02/2003
010730023B03/01/2002010730023A634815Some customers may comment on a harsh 1-2 upshift and the check engine light or service engine soon indicator is illuminated and diagnostic trouble code p1870 set. *tt10/09/2002
010730023A11/01/2001010730023627839Information regarding harsh 1-2 upshift, service engine soon, malfunction indicator lamp, or cel illuminated, diagnostic trouble code p1870 set. (1996-2000 chevrolet and gmc light duty truck models) *yh02/25/2002
01073002306/01/2001622930Some owners with vehicles built before january 15,1999 may comment on a harsh 1-2 upshift and may also have a check engine light. *et10/24/2001
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 - CONTROL MODULE (TCM, PCM)
02060402205/01/2002634725Powertrain control module (pcm) reprogramming and data line diagnosis using j42236a. *tt10/07/2002
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
POWER TRAIN - AXLE ASSEMBLY
03042000611/01/200310005555Fluid leak at rear axle. *tt03/02/2004
03042000509/01/200310004299Release of new rear axle seals. *tt12/01/2003
01363A11/18/200310004273Rear axle side cover oil leak. *tt11/24/2003
0136311/18/200310004144Rear axle side cover oil leak. *tt11/20/2003
08250308/25/200310003879Fluid leak from the rear axle side left hand side. vme message. *tt11/05/2003
08290308/29/200310003888Using the correct lock tight product when servicing a rear axle fluid leak from the differential side cover. *tt11/05/2003
000730022B12/01/2004000730022C618141A no reverse, no second gear, or no fourth gear condition. *tt updated *eh04/05/2001
POWER TRAIN - CLUTCH ASSEMBLY
302701/01/200410008758Hard clutch pedal and/or hydraulic system failure after servicing the pressure plate. *tt08/23/2004
05160205/16/2002636688Complaints of the clutch pedal not returning when depressed. *tt11/12/2002
05140205/15/2002636671Subject regarding discolored hydraulic clutch fluid. *tt11/12/2002
POWER TRAIN - DRIVELINE - DIFFERENTIAL UNIT
02042000307/01/2002634897Subject regarding revised side cover and gasket replacement (rh) / differential carrier cover and seal replacement - right. *tt10/10/2002
POWER TRAIN - MANUAL TRANSMISSION
302001/01/2004100087666sp manual transmission stuck in fourth gear will not shift out of fourth. *tt08/23/2004
05100205/10/2002636639Customers with the manual transmission option may have concerns with noise whn accelerating from a stop in first. *tt11/12/2002
99072900106/01/1999606153Some customers may complain of squeak type noise from leather shift boot when shifting gears. *tt08/11/1999
9883711005/01/1998601414Technicians may experience difficulty in removing the connectors from the park/neutral position switch, usually when trying to remove the switch during transmission service. *yc08/04/1998

Consumer Complaints

Fail datemilesoccurencesPurchase date
POWER TRAIN - AUTOMATIC TRANSMISSION - CONTROL MODULE (TCM, PCM)
01/02/2002608/01/1997
 I was making a right turn and the tracton control and anti-lock brakes disengaged and as i accelerated the vehicle spun out of control and slid into the curb and did extensive damage.*ak
05/01/20014001/01/2000
 The car's traction control system engages even when wheels are not slipping. it did this once in a great while at first, but now it does it every time i try to drive the car. when the tcs kicks in, the engine power is reduced so you can only drive about 15mph. it slows the car down abrubtly and never turns off until you turn off the car. the dash displays many error messages repeatedly such as service traction system reduced engine power service abs system check engine. this is a super serious safety issue. when you have a 345hp car, you tend to pull out on to a highway knowing you can get up to speed quickly. several times, i pulled out and the car's engine cut out due to this problem. this problem has been reported by many other 97 corvette owners and gm should handle this with a recall to fix the faulty components. my car only has 14,000 miles on it.
12/30/19971
 Traction control system warning light will come on within a split second, the engine check light will come across the dashboard, reading engine reduction power, causing vehicle to slow down without no reason. vehicle been in/out of dealer's shop more the five times and condition still occurring. last incident almost caused consumer to have a dangerous accident. *ak *slc

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