Bulletins


BulletinBulletin dateReplacement BulletinItem no.SummaryAdded
POWER TRAIN
00773100171904l60e, 4l65e replacement valve body gaskets does not seem to fit. *tt10/27/2005
305401/01/200410009665Replacement flexplate may have larger bolt holes than the original flexplate. *tt10/14/2004
30023002D100088024l60e/4l65e intermittent neutral condition while accelerating from a stop or while driving. *tt 1999-2006 gm cars, light duty trucks and utilities. *tt08/23/2004
990730016A10/01/2002990730016B10007838Diagnostic information for intermittent transmission downshift, slip, busy/cycling tcc or noisy cooling fan. *tt07/12/2004
0208601/01/2004100077824l60e, 4l65e intermittent neutral from a stop or steady speed. *tt07/12/2004
0159901/01/2004100072374l60e, 4l65e forward and low reverse waved steel clutch plate appearance change. *tt06/04/2004
00822B01/01/200400822C10005474No 2nd, no 4th and no reverse. to include 2004 light duty automobiles and trucks equipped with 4l60e or 4l65e automatic transmission. *tt02/27/2004
0141011/18/200310004214Poor performance from a stop in 2wd, auto or 4wd hi. 2003, 2003 cadillac ext also included. *tt11/21/2003
020421005A02/01/200302042100510001110Slips in 4-wheel drive, noise, vibration, leaks, hot odor. *tt04/15/2003
02042100506/01/2002634905Some 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. *tt10/10/2002
POWER TRAIN - AUTOMATIC TRANSMISSION
03073005611/01/2003100055664l60-e automatic transmission oil pump first and second design identification. *tt03/04/2004
010730038B10/01/2005010730038C10005162The service engine soon lamp is illuminated, no 3rd and 4th gear, the transmission does not shift correctly, the transmission feels like it shifts to neutral or a loss of drive occurs. *tt02/09/2004
02073001103/01/2002631670Subject regarding, 2001-2002 chevrolet and gmc c/k pickup and utility models, diagnostics for possible gear indicator concerns. *jg06/10/2002
02073001103/01/2002631259Subject regarding, 2001-2002 chevrolet and gmc c/k pickup and utility models, diagnostics for possible gear indicator concerns. *slc05/21/2002
01073003812/01/2001010730038D628934Some customers may comment that the service engine soon lamp is illuminated, no 3rd and 4th gear, the transmission does not shift correctly, the transmission feels like it shifts to neutral or a loss of drive occurs. *tt03/25/2002
01-60106/01/2001619762Subject regarding investigation of harsh shifts on 4l60e automatic transmission. *tt06/28/2001
01060106/01/2001619765Subject regarding an investigation of 2-4 band or 3-4 clutch damage on 4l60e automatic transmission. *tt06/28/2001
POWER TRAIN - AXLE ASSEMBLY
40304030A10021676New design front axle side bearing adjusters. *kb06/15/2007
336410014953Rear axle retainer button breakage. *eh05/12/2005
30013001A10008872The 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 utilitie08/25/2004
03041800306/01/200310002854Revised wheel drive shaft inner joint and seal replacement. *tt09/26/2003
POWER TRAIN - DRIVELINE
33003300A100135724wd models with noise, vibration on dry pavement. *eh04/21/2005
POWER TRAIN - MANUAL TRANSMISSION
01073003611/01/2001627912Service engine soon lamp illuminated, incorrect transmission shifts, poor performance of engine, transmission slipping. *yh02/26/2002
POWER TRAIN - TRANSFER CASE (4-WHEEL DRIVE)
34243424A10017299Electronic transfer case unable to complete shift. *tt11/02/2005
338910016707Four wheel drive inoperative and the 4wd service light will illuminate. diagnosis may reveal that the atc fuse could be open, possible dtc c0308, or various u codes may be set. the encoder motor may also be shorted or the tccm may be dama09/28/2005
352610016558Intermittent service 4wd light comes on with diagnostic trouble code (dtc) c0306 or c0308 stored in tccm. *tt09/22/2005
3349100148094wd inoperative and diagnostic trouble code (dtc) u1026 atc fuse open. *tt05/10/2005
3012B3012A10008806The nvg 136 all wheel drive (awd) transfer case and the 236 and 246 nvg selectable transfer cases operating in the auto mode may exhibit a condition of a vibration/shudder during low speed turns such as a parking lot maneuver, up to approxi08/23/2004
0140911/18/200310004212The nvg 136 all wheel drive (awd) transfer case and the 236 and 246 nvg selectable transfer case shudder on turns. *tt11/21/2003
02042100404/01/2002634899Some customers may comment on the service 4wd indicator illuminating with diagnostic trouble code b2725 set. *tt10/10/2002

Consumer Complaints


Fail datemilesoccurencesPurchase date
POWER TRAIN
01/30/200437500204/15/2001
 Gas pedle stuck or linkage in cold weather. did not drop our of paqssing gear but held in passing gear for a couple of seconds. pressing break could not overcome the engine reving.
POWER TRAIN - AUTOMATIC TRANSMISSION
11/24/2004906/14/2003
 Abs module, transmission, parking brake, throttle body, windows, rear a/c, steering suspension. since we purchased the vehicle we have had to spend over $4000.00 on repairs that should be recalled due to safety. *jb
08/17/200790550107/31/2002
 I have a 2001 tahoe that has been relatively problem-free. recently, the transmission went out on it without warning. my wife was driving on the highway, heard a pop that sounded like a flat tire. she pulled off to inspect the car, but did not see anything visibly wrong. turns out, she had no reverse, and could barely reach 50 mph, so i am guessing she was missing some gears. she was lucky enough to be able to get if off of the highway, and from there i had it towed to the dealer. something exploded in my transmission were the mechanics words. i wondered how something could just explode in the transmission without warning, so i went searching the internet. turns out alot of people have seen this related to sun-shell failure. tsb 00822b/00822c, nhtsa item number 10005474. *tr
05/30/200656000103/01/2001
 Dt*: the contact stated without warning the vehicle slipped between 2nd and 3rd gear. the next day upon entering the vehicle, none of the forward gears worked. the vehicle was reversed out of the parking lot and towed to an independent repair shop. the repair shop determined the front planetary drive snapped because a bearing broke loose. the transmission needs to be rebuilt.
05/19/200554000103/01/2005
 I was traveling out of town in my 2001 cheverolet tahoe when the transmission started slipping it would not chg past 2nd gear. i had less than 55,000 miles. it cost me $500 bec i wanted another gm transmission and not the transmission the warranty was offering with only 12000 miles
10/28/2004644971
 Transmission failure. vhicle became inoperable and required towing to repair facility. transmission required replacement.*ak
10/15/2004123000109/07/2001
 Power train:transmission, would not go into reverse, have to have transmission rebuilt. this was without any noise or failure prior to this happening. thankful i was not driving with my kids when the transmission locked up. i had just had this serviced in march of 2004. without any warning this happend, and now i am faced with a 2000.00 repair bill.*ak
05/13/200460813103/31/2001
 Mileage-60813. 1. service engine light come on, engine has lack of power on take off. took vehicle to north jackson chevrolet for service, dealer reports rodents have eaten through wires going to transmission, transmission not recieving siginal, repaired wires from fuse box, replace inigtion switch cost $634.00. after 600 miles same problems reoccures 6/16/2003, unable to get to vechicle. will carry vehicle back today for for additional repair. *jb
460001
 Automatic transmission stopped shifting while driving. dealer determined that transmission must be replaced. *ak
09/01/2003110/09/2002
 When the vehicle shifts from 1st to 2nd, there is a shuddering noise coming from the transmission. *la
01/14/2003
 Consumer stated the automatic transmission was slipping from 2nd gear to the 3rd gear. dealer had been notified and will replace the transmission .*jb
10/28/200221000109/10/2001
 When the vehicle accelerated, the rpm's whined out and the transmission engaged roughly which also caused the vehicle to surge.ts *jb
12/01/2000610/01/2000
 No summary listed for above vehicle. *ak
01/20/2001301/01/2001
 Transmission was slipping due to insufficient fluid/paint thin primer showing through. *ak
07/01/2001102/01/2001
 Vehicle was taken to a transmission shop for jerking between 10-20mph... i was told that the transmission had internal problems and it was common for the chevrolet trucks from 1996-2001 i have found well over 50 complaints of transmission failure on the internet in a matter of hours. i feel this is a serious problem that general motors needs to address.*ak
POWER TRAIN - AUTOMATIC TRANSMISSION - CONTROL MODULE (TCM, PCM)
02/15/2001501/01/2001
 Very poor wet road traction, spinning wheels starting from stops. sliding to stops on wet roads with only moderate application of brakes.*ak (tiresize: p265-70-16)( dot number: tire size: p265-70-16 )
POWER TRAIN - AUTOMATIC TRANSMISSION - LEVER AND LINKAGE - COLUMN SHIFT
12/24/200633645101/23/2002
 The shift lever arm on the automatic transmission had rusted sufficiently that the shift cable connection slipped off the nipple on the shift lever arm. it appears to be a snap fit without any positive retention. it was then not possible to shift gears or re-start the engine. luckily this happened in my own driveway just after i had driven home on the freeway. the repair shop replaced the lever arm and the complete cable assembly. i have the defective parts. *jb
 While driving in dry weather vehicle tries to engage into 4 wheel drive. vehicle starts to shutter. took to dealer ,and dealer greased yoke in transfer case, changed oil, but problem still exists. cannot find cause. *ak
POWER TRAIN - DRIVELINE
02/15/200334500210/30/2000
 Immediately after application of the anti-loch brakes at low speeds in 2 wheel high mode, the vehicle seems to lock up the wheels as if it were in 4 wheel drive. we get severe wheel hop and when we stop the vehicle, then restart it there is a very loud clunking sound. after that the vehicle preforms normally. the problem also goes away if the vehicle is turned off. the vehicle goes into 4 wheel auto, 4 wheel low and 2 wheel high normally at all other times. again, the problem only happens when the antilock brakes are activated at low speeds (no problem from high speed stops) and it has happened twice in the past 5 minths.
POWER TRAIN - DRIVELINE - DIFFERENTIAL UNIT
04/01/200983001
 I have a 2001 chevy tahoe. i purchased the vehicle 2 years. for the year i have heard a clicking noise and a knocking noise when i turn and then the noise starting getting louder. four months ago i was pulling out of my drive way and the noise turned into a scratching sound. i parked the vehicle for 2 days took it to dealer ship and they said nothing was wrong with it. well little did i know that nothing turned into the rear end gear differential going completely out. now i am with out a vehicle. this is while i have my 4 children in the vehicle with me on our way to the doctors office. i broke down on the side of the road. could not go forward what so ever. every time i would put it into drive it would make this horrible loud noise. i am not sure if i should contact the manufacturer or what. can some one tell me anything if it has happened to you and how much it coast to be fixed. i have an extended warranty but it will not cover it. *tr
10/11/200343600101/27/2001
 Defects: abs light on at 43,600 miles. when car is turned off a loud noise is heard beneath the drivers side of the vehicle my independent mechanic said the abs unit is purging. at 20 miles and regularly there after, when the fog light power button is pressed, the rear window wiper briefly makes noise as if it had been activated. at 3000 miles and regularly there after , all four doors squeak at the hinges and must be lubricated weekly. at 10,600 miles the rear differential began to leak. both driver and passenger seat squeak and do not firmly lock into position. the driver and front passenger seats do not lock into position. the parking brake has not worked since i purchased the vehicle. *la
02/15/200334500210/30/2000
 Immediately after application of the anti-loch brakes at low speeds in 2 wheel high mode, the vehicle seems to lock up the wheels as if it were in 4 wheel drive. we get severe wheel hop and when we stop the vehicle, then restart it there is a very loud clunking sound. after that the vehicle preforms normally. the problem also goes away if the vehicle is turned off. the vehicle goes into 4 wheel auto, 4 wheel low and 2 wheel high normally at all other times. again, the problem only happens when the antilock brakes are activated at low speeds (no problem from high speed stops) and it has happened twice in the past 5 minths.
POWER TRAIN - DRIVELINE - UNIVERSAL JOINT
07/13/200348000501/03/2001
 I have had my tahoe in the the dealer several times. where to begin. we have had middle seat latches catch and need to be replaced, the front dash and radio bubbled up and peeled...that was replaced. a component in the steering column was replaced when the car would just up and die everytime you turned left. that was replaced. the back window latch broke while on vacation. it too was replaced. all the seat/seatbelt recalls were repaired. then on 5/18/03 our power steering went out without any warning. they replaced it on 5/19/03 at the dealer. we took it back in on 5/30 with the complaint of it still not feeling right. it was hard to turn to the left. they found no problem. then on 7/13/03 while driving with a car full of boys, then the car died and started on fire. the 2 men, both whom have backgrounds as mechanics that help me said that it the universal joint on the power steering box was rubbing against the positive battery cable. once it rubbed thru the insulation the car caught fire. they had to disconnect the battery before they were able to tow the car because everytime the wheel moved a little it began sparking again. also, they had to end up towing it from the front because the steering column wouldn't lock up when the ignition was off, so, they couldn't tow it from the back.*ak
POWER TRAIN - MANUAL TRANSMISSION
1
 The consumer stated that the transmission had shifted from drive to 3rd and back again while the vehicle was in motion. also, the trasmission clunks when put into reverse and the engine revved up and down while shifting. *yh
POWER TRAIN - TRANSFER CASE (4-WHEEL DRIVE)
06/12/2004100000609/07/2001
 Why does the manual state that one can pull up to 8700lbs. if the tahoe can barely handle 3500lbs? the springs have been replaced twice the manifold is cracked the fuel pump went out, the universal joint is going out, the transfer case is leaking and has only been used twice in 3 years, and has already been repaired once last year, the steering pump is going out, these are only the problems i can think of. *jb
02/15/200334500210/30/2000
 Immediately after application of the anti-loch brakes at low speeds in 2 wheel high mode, the vehicle seems to lock up the wheels as if it were in 4 wheel drive. we get severe wheel hop and when we stop the vehicle, then restart it there is a very loud clunking sound. after that the vehicle preforms normally. the problem also goes away if the vehicle is turned off. the vehicle goes into 4 wheel auto, 4 wheel low and 2 wheel high normally at all other times. again, the problem only happens when the antilock brakes are activated at low speeds (no problem from high speed stops) and it has happened twice in the past 5 minths.
01/20/20027000009/01/2001
 There seems to be a problem with my transfer case for the 4 wheel drive. 4 wheel drive does not want to engage when it is pressed.