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 | ||
| 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 | |
| 02086 | 01/01/2004 | 10007782 | 4l60e, 4l65e intermittent neutral from a stop or steady speed. *tt | 07/12/2004 | |
| 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 | |
| 00822B | 01/01/2004 | 00822C | 10005474 | No 2nd, no 4th and no reverse. to include 2004 light duty automobiles and trucks equipped with 4l60e or 4l65e automatic transmission. *tt | 02/27/2004 |
| 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 | |
| POWER TRAIN - AUTOMATIC TRANSMISSION | |||||
| 030730056 | 11/01/2003 | 10005566 | 4l60-e automatic transmission oil pump first and second design identification. *tt | 03/04/2004 | |
| 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 |
| 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 |
| 010730043 | 12/01/2001 | 628815 | Subject regarding diagnostic tips for slipping or missing second, third and/or fourth gear. *tt | 03/21/2002 | |
| 01-601 | 06/01/2001 | 619762 | Subject regarding investigation of harsh shifts on 4l60e automatic transmission. *tt | 06/28/2001 | |
| 010601 | 06/01/2001 | 619765 | Subject regarding an investigation of 2-4 band or 3-4 clutch damage on 4l60e automatic transmission. *tt | 06/28/2001 | |
| POWER TRAIN - AUTOMATIC TRANSMISSION - COOLING UNIT AND LINES | |||||
| PIT-4722 | 10/01/2008 | 10026804 | Gmc: fluid leak from transmission oil cooler lines due to corrosion. all 2000-2006 light duty trucks equipped with the light duty automatic transmission. *pe | 12/18/2008 | |
| 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 - 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 - MANUAL TRANSMISSION | |||||
| 010730036 | 11/01/2001 | 627912 | Service engine soon lamp illuminated, incorrect transmission shifts, poor performance of engine, transmission slipping. *yh | 02/26/2002 | |
| POWER TRAIN - TRANSFER CASE (4-WHEEL DRIVE) | |||||
| 3424 | 3424A | 10017299 | Electronic transfer case unable to complete shift. *tt | 11/02/2005 | |
| 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 | |
Consumer Complaints
| Fail date | miles | occurences | Purchase date |
|---|---|---|---|
| POWER TRAIN - AUTOMATIC TRANSMISSION | |||
| 02/18/2009 | 106875 | 1 | |
| Transmission reverse gear failed. needs a complete teardown and rebuild. cost to rebuild was between $1400 to $1600. *tr | |||
| 10/08/2008 | 1 | ||
| My 2001 chevy blazer changes from 2wh to 4 wheel drive automatically while the vehicle is moving. this isn't the first time this has happened. i was able to get my car off of the road safely and change it back into 2wh, but it kept switching back into 4 wheel drive. there is evidently a defect. *tr | |||
| 12/28/2006 | 159097 | 6 | 02/25/2003 |
| Since i bought my 2001 chevy blazer, i've had to replace ball joints everytime i have a front end alignment. this year i've replaced 3 wheel bearings, fuel pump, and i just lost my transmission. i've had the light recall fixed. my service engine light stays on, but you cannot put a computer to it because it doesn't work. my abs light comes and goes. whats next? *nm | |||
| 08/13/2006 | 144056 | 1 | 04/09/2005 |
| My wife and i bought our '01 chevy blazer used in 04/05. from the start we had a hard time getting it to engage/disengage 4wd. this last winter my wife, the primary driver, complained that the vehicle had no power while coming home one night and the weeknights following for a week. i checked in the mornings it was fine. pretty soon we both started noticing the gas gauge bouncing around like it was dancing. my wife thinking she was running out of gas would pull into the first gas station. she would fill up and leave the station only to have it happen again after pulling away from the pump. one month later, her and our 3 small children got stranded when they went in to convenience store. a minute later the blazer had died and the key in the on position. replaced the fuel filter and then the fuel pump ($350 just for the pump!!!) the heating element in the pump had fried it. 04/06 the abs failed and she almost hit a pedestrian. 2 weeks later we start hearing this popping noise when slowing/stopping and accelerating. 05/06 the battery died on her with no warning. tried jumping it and it wouldn't hold a charge. got that replaced. then in 08/06 we didn't drive it because the plates had expired and we couldn't afford to replace them yet. finally i drove it on 08/13/06 for 1 mle to the store and on my way back while stopping at the stop sign 2 blks from my house, i heard this loud clunk noise and then the vehicle started whinning. now the thing won't move. it starts and whines, but won't move. transmission is shot and is going to cost $1600 to replace with me doing the work. and so now, like 90% of the country, i am making a very high car payment except mine is on a car that i can not drive. this and other web sites about vehicle recalls prove that there are some serious issues with these vehicles and nothing is being done about it. what needs to happen is for some one to die b/c of these defects and then u will be scrambling to correct the problems. this is ridiculous.*nm | |||
| 07/17/2006 | 78407 | 1 | 09/01/2004 |
| My friends borrowed my vehicle, a 2001 chevy blazer, and went camping in the mountains. the vehicle was parked at a location that could have been very dangerous due to this failure, it was near a creek bank with a drop of approximately 30 feet. when the vehicle was started and put into reverse all it would do is coast forward which could have been very dangerous if they did not react in time as it could have went over a cliff. fortunately they were in an area where there was a pay phone. they were staying at a state park and there are many areas that are very remote and are several miles away from phones or people. i was advised by aamco transmission that they see this transmission problem on a regular basis and it is caused because the reaction sun shell was made of an inferior metal and even in repair technical bulletins it specifies to repair problem by replacing with a more robust heat treated reaction sun shell. when this occurs, it also affects second and fourth gears. in order to repair this problem the transmission needed completely rebuilt at a price of $2,326.38 plus a towing bill. *nm | |||
| 11/05/2005 | 53500 | 1 | 08/15/2004 |
| Loud clanking noise heard under normal driving conditions. transmission failed, no reverse and no 3rd or 4th gear. vehicle has only 53,500 miles. *nm | |||
| 05/04/2001 | 20 | ||
| 2001 chevrolet blazer developing various problems.***no answer required***. *mr the differential pinion shaft seal was leaking. when it rained the transmission slipped, the cigarette lighter was inoperative, the lighter socket was replaced. the heater was not blowing hot air, the service engine soon light illuminated, the brake light was inoperable, the directional switch was replaced. the front rear rotors were rotted, the rear wheel well molding was coming undone, the drivers window was leaking water. the vehicle was not shifting properly, the alternator was replaced, the tail gate glass would not lock, the driver door did not shut easily, the battery was replaced. the headlights were inoperable. the driver seat recliner was replaced, the retractor in the seat belt was reset. the rear window molding was loose. the oil cooler lines were leaking.*jb | |||
| 08/18/2004 | 1 | ||
| While driving automatic transmission doesn't shift properly from the first to the second gear. also, reverse is not working any more. dealer was notified.*ak | |||
| 05/20/2004 | 78000 | 4 | 04/01/2001 |
| Battery going dead after charging cell phone. engine light on x 6 month - 1 year, several mechanics unable to find a cause 2 weeks ago: driving on the highway, nearing an exit, transmission start to go out. drove it to a garage....would not go iinto reverse. drove it home....will not go into gear at all by the time i got the car home. car towed to another garage for repair. vehicle is 2001 chevy blazer with 78,000 original miles. i bought the vehicle brand new and daily use to go to work and drop kids off at school. last summer drove it to florida. no problems. i don't tow anything nor do i drive it off-road. last year the bolts off the suspension at to be replaced costing $1,000. *ak | |||
| 04/22/2004 | 26916 | 6 | 06/24/2003 |
| Consumer heard a noise in the front of vehicle. consumer stated he had been hearing it a little, but currently the noise became more pronounced. consumer had already replaced the transmission once. *ak the consumer had to fill the tires every week. the tires leaked air since purchase. the tire service dealer suggested that there was no leak and that corrosion built up on the wheels in which air escaped through the rim of tires. there was a thumping noise in the front end and seems like it happens worst on right turns, the left wheel bearing was loose in the hub bearing assembly, the hood hinges rattling excessive clearence, there was excessive slippage and the clutch burnt. (laredo tires) *sc | |||
| 09/10/2003 | 45000 | 1 | 10/01/2001 |
| This was not the first time i had a problem with the transmission in this car. earlier in the year i put it in the shop because it seemed to be falling out of overdrive. it was repaired and i had two months of incident-free driving. we went on a weekend trip. after i stopped and restarted the car, i noticed my clock reset itself. two hours into the trip, the car started jerking in and out of gear. we drove two hours back to the dealership where they found a computer wire was disconnected. two hours later, the car starts slipping in and out of overdrive again. it would run in 3rd gear, we were close enough to our destination, we continued on in 3rd gear. when i got back home, i dropped the car off at the dealership and told them to fix it. i was without my vehicle the majority of the following 6 week period. i was driving on the interstate in the rain, there was a fatal accident, i slowed down & turned on my flashers, i had no tail lights, flashers, etc. i had already had the multi-function switch replaced shortly after i bought the car because someone almost rear-ended me. the engineer from chevrolet came down and could find no cause for my transmission problem and offered $1500 trade allowance, which leaves me stuck with another chevrolet and a higher car payment. in addition to the transmission problem, one of my tires was worn out after 30,000 miles, the 2nd one 15,000 miles and an alignment later. after only 45,000 miles the wheel bearing on the front drivers side was shot, the same side the tires were going bald on. *jb | |||
| 01/08/2004 | 9000 | 2 | 04/20/2001 |
| Rattle in front end of vehicle coming from suspension, or wheels, can be felt in steering wheel. also after coming to a stop after traveling on interstate vehicle shakes/vibrates in transmission/rear drivetrain area when starting. both have been going on for a couple years, and i have had vehicle at dealer ship to repair/locate problem, but problem continues | |||
| 01/15/2004 | 44000 | 4 | 03/01/2001 |
| Transmission dropped out @44000 miles. 12/02 had to replace both front ball joints. summer of '03 started making loud popping noises which came from front right area, it would pull unexpectedly to either side - mainly to the right and service 4wd light would come on. 10/03 had to have right front wheel bearing replaced. could find nothing wrong with 4wd-don't know why light keeps coming on. now 01/04, right front wheel bearing needs replaced again. i'm told part under warranty as long as i own vehicle cause gm has received so many complaints. what is gm doing to correct the root cause of this? i see i am not the only one with this problem. thank god i have not had any accidents, but have had a few near misses because the it would jerk instantly and it caught me off guard. does an accident / injury / fatality have to happen before corrective action is taken? *cb | |||
| 03/28/2003 | 40300 | 1 | 04/02/2001 |
| 40,300 miles on 2001 blazer, transmission seals failed. had to rebuild transmission. gm offered to pay parts only, left us with $1250 labor repair bill. purchased vehicle as dealer demo, 7500 miles when we bought, but we hold first title | |||
| 12/01/2002 | 6 | 05/01/2001 | |
| The low gear in the auto transmission fails at will, it will work for a week or two then will go out. this has happened 6 times. dealer says he can not identify problem as it was working when he checked it. dt | |||
| After coming from a stop position and returning to normal driving transmission was making a rowing noise, difficult changing gears. dealer has been contacted. pleas provide further information.*ak | |||
| 03/13/2002 | 04/01/2001 | ||
| I purchased my vehicle in 4/01 and seven months later i began experiencing a host of problems with my vehicle, starting with multifunction switch worn, then hood hinges worn, exhaust (muffler broken) right speaker inoperable, left front seat adjuster broken, grill assembly loose, brake pedal broken and finally transmission failure (needs replacing). i have done a bit of inquiring to other chevy blazer owners and found out that they have or had experience some if not all of the same problems that i am experiencing now. i am hereby respectfully requesting your assistance in rectifying this complaint. i don't think that after 11mths of purchasing my vehicle i should be needing my transmission replace. from passed experienced with replacing a transmission on my wife new vehicle (mazda mx3) back in 1992 it has never been the same. we had been having the same problems and more with it. we were able to actually get another vehicle and the same problem keep occuring . after that long and tiring experience with my wife's car i now that this won't be no different. i have purchased a lemon and i need to know what recourse i can take to insure that i would not be stuck with a vehicle that would be costing me more to have it constantly fixed and replace. i thank you for your help and assistance in this long and tiring ordeal. i anxiously await hearing from you. respectfully yours. *ak | |||
| 08/13/2001 | 18 | 03/01/2001 | |
| Complete dealer dissatisfaction & incompetence with a they all do that answer!!!. no safety defect listed in summary. *ak | |||
| 04/02/2001 | 1 | 03/25/2001 | |
| When the car in gear on a hill, it will roll down the hill and increase in speed. the car rolls so fast that you cannot safely make the transition from brake to accelerator without rolling severely, the manufacturer stated that this falls within specs, the 4 wheel drive service light is illuminated. *yh | |||
| POWER TRAIN - AUTOMATIC TRANSMISSION - LEVER AND LINKAGE - COLUMN SHIFT | |||
| 25 | 11/01/2000 | ||
| Vehicle stallsat all speeds, switches into 4wd by itself,strong elctrical burning smell after driving. | |||
| POWER TRAIN - AXLE ASSEMBLY | |||
| 04/02/2007 | 59892 | 2 | 10/13/2000 |
| Front wheel bearings had to be replaced for a second time. the car has only 60,000 miles on it! the second time, the bearings were no longer covered under warranty and i incurred over $1000 in repair costs. *ak | |||
| POWER TRAIN - AXLE HUBS | |||
| 02/16/2006 | 4 | 01/16/2004 | |
| Possible quality issue with gm hub/bearing part number 12413045. purchased vehicle with 21,500 miles on it. on 3/23/05 at 57,468 miles, the right front hub/bearing assembly went bad. gm part 12413045. on 4/27/05 at 60,750 miles, left front hub needed replacement. now, on 2/16/06, at 90,650 miles, left front hub needs replacement. that is less than 30,000 miles. chevrolet dealer denied claim that product defective in any way. would like to have gm acknowledge problem with premature wear and replace at no cost. *jb | |||
| POWER TRAIN - DRIVELINE - DIFFERENTIAL UNIT | |||
| 05/04/2001 | 20 | ||
| 2001 chevrolet blazer developing various problems.***no answer required***. *mr the differential pinion shaft seal was leaking. when it rained the transmission slipped, the cigarette lighter was inoperative, the lighter socket was replaced. the heater was not blowing hot air, the service engine soon light illuminated, the brake light was inoperable, the directional switch was replaced. the front rear rotors were rotted, the rear wheel well molding was coming undone, the drivers window was leaking water. the vehicle was not shifting properly, the alternator was replaced, the tail gate glass would not lock, the driver door did not shut easily, the battery was replaced. the headlights were inoperable. the driver seat recliner was replaced, the retractor in the seat belt was reset. the rear window molding was loose. the oil cooler lines were leaking.*jb | |||
| POWER TRAIN - MANUAL TRANSMISSION | |||
| 02/14/2004 | 72000 | 1 | 10/09/2001 |
| 2001 chevolet s10 blazer manual transmission failures,some part call the sunshell boken inside of transmission causing 1400.00 to repair.*ak | |||
| 07/26/2003 | 42900 | 2 | 02/02/2003 |
| Driving within the city i heard a clack noise and a loud noise came from the transmission, after that i couldn't use the reverse, and first gear was longer than usual, this vehicle only has 42,000 miles. i have spoken with mechanics and friends and this is a manufacturer failure with this type of vehicle, my mechanic. told me he has to fix so far about one of those brand vehicle per month, a friend told me he purchased a chevy blazer and moving it from dealer he couldn't move vehicle, transmission was locked, i need the manufacturer fix my car immediately at no cost. since i purchased vehicle took it twice because i was hearing a noise, but chevrolet dealer said everything was fine, they couldn't fine any noise, but i heard that noise twice and a very loud and steady noice sometimes coming from the transmission after speeding in a traffic light (from red to green). *ak | |||
| POWER TRAIN - MANUAL TRANSMISSION - SHIFT PATTERN INDICATOR | |||
| 07/26/2003 | 42900 | 2 | 02/02/2003 |
| Driving within the city i heard a clack noise and a loud noise came from the transmission, after that i couldn't use the reverse, and first gear was longer than usual, this vehicle only has 42,000 miles. i have spoken with mechanics and friends and this is a manufacturer failure with this type of vehicle, my mechanic. told me he has to fix so far about one of those brand vehicle per month, a friend told me he purchased a chevy blazer and moving it from dealer he couldn't move vehicle, transmission was locked, i need the manufacturer fix my car immediately at no cost. since i purchased vehicle took it twice because i was hearing a noise, but chevrolet dealer said everything was fine, they couldn't fine any noise, but i heard that noise twice and a very loud and steady noice sometimes coming from the transmission after speeding in a traffic light (from red to green). *ak | |||
| POWER TRAIN - TRANSFER CASE (4-WHEEL DRIVE) | |||
| 01/05/2006 | 34382 | 1 | |
| It would switch from 2 wheel drive to 4 wheel drive while driving ,causing car to slow down dramatically. transfer case actuator module bad on truck when called for warranty they stated it was a common failure. i felt it was a deadly and dangerous situation, depending on where you were driving when it happens, and should be looked into. *ak | |||
| 07/21/2003 | 14162 | 1 | 02/18/2001 |
| Vehicle switches into 4- wheel drive low intermittently with no user action taken.*ak | |||
| 06/11/2003 | 3 | ||
| Transfer case has failed 3 times, and each time it was replaced by the dealer. it stayed in 4 high, and it just locked up, consumer had it replaced and it worked for a minute and failed again, it kept doing the same thing.*ak | |||
| 04/11/2003 | 1 | ||
| The four wheel drive did not engage properly. the switch was disconnected by the dealer and the part would be replaced, once it arrived. *jb | |||
| 12/15/2002 | 1 | 10/23/2000 | |
| Our 2001 blazer 4wd failed to engage . we were traveling east on highway 36. it was snowing. i pressed the 4wd hi button and it continued to blink. we were on a narrow two lane highway and had no where to pull over. the 4 wheel drive failed to engage and the blazer, within seconds sliped over the cliff. the front wheels did not lock in. we rolled down the cliff approximately 50 feet and hit a tree. | |||
| 04/02/2001 | 1 | 03/25/2001 | |
| When the car in gear on a hill, it will roll down the hill and increase in speed. the car rolls so fast that you cannot safely make the transition from brake to accelerator without rolling severely, the manufacturer stated that this falls within specs, the 4 wheel drive service light is illuminated. *yh | |||