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 | ||
| 3156 | 3156A | 10010292 | 261 transfer case drivelines growl 1100-1200 rpm. *tt | 11/09/2004 | |
| 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 | |
| 990730016A | 10/01/2002 | 990730016B | 10007838 | Diagnostic information for intermittent transmission downshift, slip, busy/cycling tcc or noisy cooling fan. *tt | 07/12/2004 |
| 01599 | 01/01/2004 | 10007237 | 4l60e, 4l65e forward and low reverse waved steel clutch plate appearance change. *tt | 06/04/2004 | |
| 010730002C | 08/01/2003 | 010730002B | 10004354 | Malfunction indicator lamp (mil) is on; the transmission is stuck in third gear; and / or the instrument cluster is inoperative. *tt | 12/03/2003 |
| 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 | |
| 030421004 | 05/01/2003 | 10002374 | Design change of rear output shaft and oil pump replacement parts. *tt | 08/26/2003 | |
| 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 | |
| 020090002 | 04/01/2002 | 634226 | Subject regarding lubrication of propeller shaft double cardan cv type u-joint centering ball and seat.*nlm | 09/28/2002 | |
| 220102 | 01/22/2002 | 629716 | Some four-wheel drive extended cab short bed models may exhibit a bump/clunk on stop or acceleration. *tt | 04/05/2002 | |
| POWER TRAIN - AUTOMATIC TRANSMISSION | |||||
| 030730056 | 11/01/2003 | 10005566 | 4l60-e automatic transmission oil pump first and second design identification. *tt | 03/04/2004 | |
| 3259C | 3259E | 10005514 | 4l80e, 4l85e whine noise in first and second gear. *tt | 03/01/2004 | |
| 010730038B | 10/01/2005 | 010730038C | 10005162 | 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. *tt | 02/09/2004 |
| 020417001A | 07/01/2002 | 020417001 | 634895 | Concerns with launch shudder / vibration on acceleration. *tt | 10/10/2002 |
| 020417001 | 02/01/2002 | 629369 | Some owners of c1500 series extended cab pickup models may comment on a vibration/launch shudder when accelerating from a stop. *tt | 04/02/2002 | |
| 010730038 | 12/01/2001 | 010730038D | 628934 | Some 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. *tt | 03/25/2002 |
| 990730010A | 06/01/1999 | 990730010 | 607320 | A driveline vibration / growl noise. *tt | 09/20/1999 |
| 990730009 | 06/01/1999 | 606085 | Subject pertaining to harsh 1 - 2 and 3 - 2 shifts. *tt | 08/06/1999 | |
| 990730010 | 06/01/1999 | 606084 | Driveline vibration / growl noise. *tt | 08/06/1999 | |
| 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 | |
| POWER TRAIN - DRIVELINE | |||||
| 3300 | 3300A | 10013572 | 4wd models with noise, vibration on dry pavement. *eh | 04/21/2005 | |
| POWER TRAIN - DRIVELINE - DIFFERENTIAL UNIT | |||||
| 990421003C | 08/01/2003 | 990421003B | 10004401 | Front wheels slipping with vehicle in four wheel drive. *tt | 12/05/2003 |
| 990421003B | 04/01/2001 | 990421003A | 619378 | Some owners may comment on a slipping type condition at the front wheels while the vehicle is in four wheel drive (4wd). *tt | 05/24/2001 |
| POWER TRAIN - DRIVELINE - DRIVESHAFT | |||||
| 040495001 | 03/01/2004 | 10008653 | Revised wheel drive shaft nut torque specification. *tt | 08/12/2004 | |
| POWER TRAIN - MANUAL TRANSMISSION | |||||
| 131101 | 11/13/2001 | 628117 | Information on 4-wheel drive extended cab, short bed vehicles with 4-wheel drive extended cab, short bed with a bump or clunk on stop or acceleration. *tt | 03/05/2002 | |
| 011101 | 11/01/2001 | 628081 | This message covers trucks with four-wheel drive extended cab short bed with a bump or clunk on stop or acceleration in reference to bulletin number 01-04-17-004. *tt | 03/05/2002 | |
| 251001 | 10/25/2001 | 628027 | Some extended cab short bed vehicles with four-wheel drive may exhibit a bump or clunk on stop or acceleration from a stop. *tt | 03/01/2002 | |
| POWER TRAIN - TRANSFER CASE (4-WHEEL DRIVE) | |||||
| 3424 | 3424A | 10017299 | Electronic transfer case unable to complete shift. *tt | 11/02/2005 | |
| 3389 | 10016707 | Four 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 dama | 09/28/2005 | ||
| 3526 | 10016558 | Intermittent service 4wd light comes on with diagnostic trouble code (dtc) c0306 or c0308 stored in tccm. *tt | 09/22/2005 | ||
| 3349 | 10014809 | 4wd inoperative and diagnostic trouble code (dtc) u1026 atc fuse open. *tt | 05/10/2005 | ||
| 3012B | 3012A | 10008806 | The 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 approxi | 08/23/2004 | |
| 01409 | 11/18/2003 | 10004212 | The nvg 136 all wheel drive (awd) transfer case and the 236 and 246 nvg selectable transfer case shudder on turns. *tt | 11/21/2003 | |
| 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 | |
| 990421003 | 06/01/1999 | 606091 | Some owners may comment about a slipping type condition at the front wheels while the vehicle is in four wheel drive (4wd). *tt | 08/06/1999 | |
Consumer Complaints
| Fail date | miles | occurences | Purchase date |
|---|---|---|---|
| POWER TRAIN | |||
| 04/17/2011 | 79000 | ||
| Np8 actuator motor failure | |||
| 10/15/2003 | 83303 | ||
| Today while trying to park my truck, i pulled into a parking spot and was going to back up, when i heard a whirring noise. i put the truck back in neutral,noise was gone, back in reverse noise has returned. no reverse. i abandoned parking and drove home. i had all forward gears. when i returned home, i put the truck in park..... no park the truck rolled ahead and almost hit another vehicle. called gmc, was told to take to dealer. service manager said the problem was the reaction sun gear and shell internal in transmission. very common problem. this is more than just a failed transmission, its a safety issue with no park in transmission. gmc basically told me i am s.o.l., and would not acknowledge the problem with no park and that safety issue. | |||
| 10/28/1999 | 0 | ||
| While driving in snow speedometer started moving back and forth. then consumer smelled rubber burning, and headlights popped out. took to dealer and they said something overheated on the outside. but consumer said it was on the inside. dealer put a module in, and made the problem worse. consumer fears loosing lights on the road. *ak | |||
| POWER TRAIN - AUTOMATIC TRANSMISSION | |||
| 07/26/2005 | 60000 | 100 | 01/06/2000 |
| Dt: 1999 gmc sierra 1500. while driving the truck for about 45 minutes to an hour and if stopping at a stop sign or red light the truck will not shift from first gear to second gear properly. once the truck does shift it is a very hard shift, and if on wet or slippery surfaces the truck will squall the tire. this started around 60, 000 miles. this does not happen every time, it is hit or miss. while pulling across three lanes of traffic the truck shifted properly and was almost hit by on coming cars. took vehicle to the dealership, and they said it was the transmission. it was a common problem with gmc trucks. there is a kit that is made to fix this problem, but transmission must be replaced and the repair cost is between $700 - $1,800. this happens 4 to 5 times a week. *ak *jb | |||
| 07/03/2005 | 49000 | 1 | |
| While attempting a three point turn across a road the automatic transmission began grinding after putting the vechile in reverse. i was in the lane facing oncoming traffic when this occurred. the reverse gear no longer functioned. fortunetly there was no oncoming traffic and i was able to put the vechile in drive and straighten it out, getting back to the parking lane. the vecile only has 49,000 miles. in the research i have done on the problem so far i have discovered that the automatic transmission failing is a common problem. for example, a man named chuck who works at all-world transmission (262-547-0136) says these vechiles come in all the time with the same trasnmission problem. gmc claims it is a not a safety issue and will not issue a recall. i beg to differ. i had my wife and 5 month old daughter in the truck. if there had been a car coming, i might have been in trouble. | |||
| 11/08/2002 | 40000 | 06/08/2001 | |
| Transmission hesitates badly to shift 2-3, when cold out | |||
| 05/19/2000 | 72000 | 06/15/1999 | |
| I complained to gmc directly about abs failure and reported it to atty. gen of nys.i was told its normal wear in states with salt, funny that the paint is good to this day | |||
| 08/22/2001 | 06/01/2099 | ||
| Gmc sierra has been in shop to many times to keep track of. truck also has a problem with sticky throttle body which has been dangerous.gmc gave extended warranty in 2000 bacause of problems also issued customer appreciation certificate if i wanted to buy new gm product.service manager told me to cut my losses and but a new one.gmc will not do a thing for me. contacted nys attn. general about problems.gmc now has their legal core calling me at home . i have asked them to buy vehicle back research the parts and assembly to protect other owners. gmc says sorry . i asked them how they could warranty rust thru for 100,000 but could not protect abs from corrosion, gmc response was hey you live in new york state. and they are under no financial obligation what so ever*ak | |||
| Truck jammed on brakes and shifted into reverse with no warning due to the ecm (brain) malfunctioning. please describe details. *ak | |||
| 04/08/2001 | 1 | 04/01/1999 | |
| Abs system fails on panic stops. suddenly applied pedal presseur locks brake pedal and provides little or no braking for approximately 1 second. i have been told by the dealership's service department that this is typical of all abs and that i need to train myself not to jam the brakes in an emergency. vehicle was in shop in dec. 1999 for transmission repair and brakes were supposed to be checked. no check was noted on repair order, but service manager assured me that the mechanic had test driven the vehicle and it was ok. this problem seems to be a result of abs pump overreacting to suddenly applied pedal pressure and locking the pedal with back pressure before braking actually starts. i feel that the brakes should at least chirp the tires first. currently vehicle is under repair from accident, but it will be taken to another dealership upon completion of this repair.*ak | |||
| 02/28/2001 | 2 | 04/01/2000 | |
| Rear end vibrates due to misalignment of drive shaft to axle. can't figure out why tranmission shifts hard. tried replacing seat belt to fix tightening on bump.*ak | |||
| 01/01/2001 | |||
| Periodically transmission would skip a gear, causing engine to overrise. please provide addt'nl information. *ak | |||
| 07/01/1999 | |||
| Main complaint is transmission. took vehicle in at 6000 miles and told dealer about downshifting problem and major clunk or bumping noise after downshifting after starting from near stop. also reported hard shifting. dealer reports scan ecm system no trans codes and roadtested results show operating as designed. door lock bezels falling off. dealer replaced. this was 10/20/99. took vehicle back in with 17102 miles on may 5/2000. complained of rattle in pass. door. was reported that rear seat belt holder not fastened. replaced guide and cover for safety belt. rattle in pass. door showed regulator loose from door skin. tightened and aligned . ask for check in noise in driver's window, going down, results were operating as designed. ck. bump in rear on accl. results on checking drive train: operating as designed. condition normal. ck. brakes acts as if don't want to stop times. results were operating as designed. still not happy with brakes! right tire found to be not round. replaced. taken to dealer on nov. 8/2000. accl. sticking at top position. throttle body sticking and replaced per bulletin[which i never recieved] . had labels placed on vehocle about caliper when replacind disc brakes on vehicle. check trans. downshifts after coming to stop then accl. makes tripple bump and hard shifts. scan system found no codes: operating as designed. trans. still not right or shifting right and bumping! door lock bezels falling out. checked bezela and aligned. owner reported sounds like only one horn functioning. low volume results showed horn operating as designed. not happy, they seem to think i'm stupid. repeat complaints all ignored except horn. it was fixed!dec. 8/2000tran.*ak | |||
| 10/01/1998 | |||
| No summary listed for above vehicle. *ak | |||
| 05/15/2000 | 06/01/1999 | ||
| When accelerating fast, must let off of throttle so transmission will shift from 1-2, and 3-4 gears. all fluid and filter were changed, problem not fixed. *ak | |||
| 05/01/2000 | 10 | 09/01/1999 | |
| When attempting to pass another vehicle on an incline at speeds of 55mph to 65mph the transmission shifts into second gear and revs the engine up to 4500 rpms and doesn't increase the speed because it is running at its peak speed in second gear causing me to have to let up on the accelerator and try to get back behind the vehicle i was trying to pass.this same downshifting also occurs when using the cruise control.the dealer did not want to test drive the vehicle on a similarly inclined road to duplicate the problem because he didn't have another vehicle like mine to compare it to.the defect in this transmission could easily put me in a head accident situation and needs to be addressed immediately. *ak | |||
| 01/19/2000 | 3 | ||
| While driving about 25 mph with an automatic transmission gear won't shift between speeds. *ak | |||
| While driving 55 mphe entire vehicle severly vibrates. also transmission shifts. cause unknown. please give any further details. *ak | |||
| 06/19/1999 | 500 | 06/01/1999 | |
| No summary | |||
| 1 | 02/01/1999 | ||
| Truck was drove about 300 miles at highway speed , shut off for 1 hour and drove thru town , stopped at a red light ,proceeded to take off when light turned green, engine reved up but the truck just sat there and did not move.,i verified truck was in drive snd shifted thru the gears d,3,2,1,2,3,d,n,r,p,r,n ,d engine reved but truck would not move. i turned off engine and restarted ,put it in gear engine reved then the truck started to move as if everything was normal. truck now has 13k miles and the problem has not repeated,bet i have heard of several other 1999 & 2000 chevy and gmc trucks with the same problem.i beleve this could be a serious defect that could cause injury to occupants or others. | |||
| 06/12/1999 | 3 | 06/01/1999 | |
| Transmission did not start in 1st gear after complete, resting stop. potential issue of not being able to avoid imminent danger in traffic due to lack of power. | |||
| 01/08/1999 | 3 | 11/01/1998 | |
| Transmission - harsh upshift 2-3 & 3-4, been at dealers 3 times to no avail. *ak | |||
| POWER TRAIN - AUTOMATIC TRANSMISSION - LEVER AND LINKAGE - COLUMN SHIFT | |||
| 05/01/1999 | |||
| Went to dealership talk about techical service bulliten #86-74-03 clunk upon acceleration(replace transfer case fluid). dealer changed transfer case fluid, but glunk noise is still there. the service bulletin states cause maybe to slip-stick condition between the rear propeller shaft slip yoke and the transfer case output shaft. the correction, drain the transfer case fluid and refill with fluid. this fluid contains a friction modifier thar should eliminate the slip-stick condtion. i feel that this service bulliten procedure did not correct the cluck problem. i said, to the technical manager that there is excess backlash between the crown-wheel and pinion in the diff. pull it out and adjust it, as it will shorten the lfe of diff. he stated that there is no room to adjust it. i have a 1992 model that makes a clunk noise. i think my ujoints are being effected because of the backlash. i place my truck in drive then reverse i get a slight clunk feeling. iam not a expert, but i don't think the tsb really corrects the clunk. *ak | |||
| POWER TRAIN - AXLE ASSEMBLY | |||
| 02/28/2001 | 2 | 04/01/2000 | |
| Rear end vibrates due to misalignment of drive shaft to axle. can't figure out why tranmission shifts hard. tried replacing seat belt to fix tightening on bump.*ak | |||
| 08/10/1999 | 1 | ||
| Vehicle makes noise when making turns due to faulty front axle grease seals. nlm | |||
| 04/02/2000 | 8 | 04/01/1999 | |
| Tires wear out exceptionally fast. dealership authorized replacement of 4 tires in march 2000. at this time, the truck had approx. 16,500 miles. they were replaced due to extreme wear and numerous bulges. about 3 weeks after having these 4 tires replaced, while driving at approx. 20 mph to make a turn, a tire blew. the tire separated from the rim on both edges and was just centered, hanging loosely from the rim, totally deflated. i went ahead and pulled into a station about 20 yards away, where i jacked the truck up and was able to center the tire on the wheel & reinflate it. the tire held pressure & i was able to finish errands & then go to goodyear. at this time, goodyear tells me i hit a nail. they plugged the tire, but told me i needed to take the truck back to dealership as my new tires, with less than 1000 miles, were badly worn and should be replaced. the dealership tells me to return to goodyear for adjustment. i feel there is a problem, don't know if it is the tires or the truck?? when the tire came loose, i bumped the curb & sustained about $1000 of damage, rear axle, bearings, rotor etc. how can a tire totally seperate from the rim & then be reinflated without repair? why do the tires on this truck keep wearing out? encountered another customer today at hudiburg with a similar problm. they were replacing 2 tires for him after replacing all 5 tires previously. wish they were as considerate in my case, instead of sending me back to deal with goodyear myself!! here i sit with a 1999 sierra which needs new tires..there has to be a reason why they wear out so rapidly??why would a tire seperate from the rim/ then be able to be reinflated without repair??*ak( dot number: pd3ddawr27 tire size: 23575r16 ) | |||
| POWER TRAIN - AXLE ASSEMBLY - AXLE SHAFT | |||
| 11/01/2000 | 1 | 11/01/2000 | |
| Ever since consumer has owned this vehicle with 48,000 miles on it at time of purchase, throttle would stick when pushing down on accelerator pedal. this defect occurred mostly during low speeds, approximately 2 to 3 times a week. dealership was examining wheel bearings. dealer stated that throttle body needed to be replaced. *ak | |||
| POWER TRAIN - AXLE ASSEMBLY - AXLE SHAFT - SEAL | |||
| 08/10/1999 | 1 | ||
| Front axle grease seal failed causing noise when making left turns, dealer replaced seal yet the vehicle continues to make noise. nlm | |||
| POWER TRAIN - DRIVELINE | |||
| 1 | |||
| There was a clunk in the driveline. nlm | |||
| 11/01/1999 | 10/01/1999 | ||
| I have been trying to get this problem fixed since november of 1999 without any success, if you could offer any help it would be greatly appreciated. no afety defect stated in summary. *ak | |||
| POWER TRAIN - DRIVELINE - DIFFERENTIAL UNIT | |||
| 08/31/2005 | 95000 | 2 | 07/08/1999 |
| Gas tank gauge works once in a while. our mechanic said it was probably due to moisture. also, the rear differential cover is either cracking or rusting through. i put a new gasket on it and the next day it was leaking again but not at the gasket. about 1/3 up from the bottom, you can see where fluid is leaking through the cover. i called 2 dealers (1 chevrolet, 1 gmc). they both gave me numbers to other dealers (1 in pa., 1 in ia., 1 in upper mi.). the two out of state dealers told me that the part was for a customer and would not sell it. the one in mi. also said that, in addition to that must be a popular part, because i've had every dealer in the country call me. is this part a defective piece? *nm | |||
| 09/21/1999 | 1 | 02/01/1999 | |
| The rear rotors u-joint, carbon build up on throttle, replaced window motor uses 2 qts of oil every 400 to 500 miles , transmission uses 1 qt of oil every 20000 miles , air conditioner fan does not work on high i believe the throttle build up is a safety issue with the gas petal sticking. we have a lemon | |||
| POWER TRAIN - DRIVELINE - DRIVESHAFT | |||
| 03/03/2002 | 2 | 09/01/2000 | |
| The power steering pump driveshaft broke, causing loss of steering & loss of power assisted brakes while towing a 2 horse trailer . on this size vehicle it is extremely difficult to steer or stop even at slow speed.this is the second time this has happened. the first was 09/10/2000, also pulling a two horse trailer.the service manager has told me they have had to replace several of these pumps because of the shaft breaking.the pump assembly # is e9050. if this were to happen at highway speed the results could be catastrophic.there is no indication or warning that this has happened untill you try to steer or stop.in an emergency that may be to late. *ak | |||
| 3 | |||
| Throttle body sticks while driving. had built up dirt and varnish. this caused vehicle to lunge forward when pressing on pedal. drivetrain makes a clunking noise due to a lack of lubrication. this can cause teeth not to mesh correctly*ak | |||
| 11/04/1999 | |||
| Would be driving and removing foot from gas pedal for a short while. would then depress on gas pedal, and it made a loud metallic bang. would sound like metal against metal. took to dealer & mechanic lubricated driveshaft. was working fine until leaving dealership. have been in to dealer ten times for problem , and it's not resolved. *ak | |||
| 09/21/1999 | 1 | 02/01/1999 | |
| The rear rotors u-joint, carbon build up on throttle, replaced window motor uses 2 qts of oil every 400 to 500 miles , transmission uses 1 qt of oil every 20000 miles , air conditioner fan does not work on high i believe the throttle build up is a safety issue with the gas petal sticking. we have a lemon | |||
| POWER TRAIN - MANUAL TRANSMISSION | |||
| 09/01/2001 | 3 | 09/13/2000 | |
| While crossing a three lane highway, transmission disengages and almost caused a serious accident. *et | |||
| 03/08/2000 | 1 | ||
| Vehicle hard to shift from park, shift cables were replaced with sop cables.*yh | |||