Bulletins
| Bulletin | Bulletin date | Replacement Bulletin | Item no. | Summary | Added |
|---|---|---|---|---|---|
| POWER TRAIN - AUTOMATIC TRANSMISSION | |||||
| 08-07-30-002 | 01/01/2008 | 10025561 | Information on 4t65-e mn7, m15 and m76 front wheel drive automatic transmission valve body reconditioning, dtcs p0741, p0742, p0757, p842, harsh shifts or slips. *pe update 6/11/10. *pe | 08/21/2008 | |
| 08-07-30-016 | 04/01/2008 | 080730016A | 10025421 | Diagnostic information on mh1, mn8, mt1, m15 transmission slips, will not shift or may overheat, ses/mil may be illuminated, dtcs p0218, p0894 set. *pe updated 8/12/08. *pe | 08/07/2008 |
| 080730002 | 03/01/2008 | 080730002A | 10025065 | Informational on 4t65-e mn7, m15 and m76 front wheel drive automatic transmission valve body reconditioning, dtcs p0741, p0742, p0757, p842, harsh shifts or slips. *pe | 07/08/2008 |
| 4133 | 4133A | 10022769 | Transmission slips, will not shift, ses light may be illuminated. *kb | 09/26/2007 | |
| 070730012 | 10/01/2007 | 070730012C | 10021844 | 4t65-e transmission slips, no drive/reverse, tcc shudder, noise with tcc applied. *kb updated 08-15-07. *kb (diagnosis & replace transmission, if necessary). updated 2/19/08. *nj | 06/22/2007 |
| 060730023 | 09/01/2006 | 10020766 | 4t65e transmission 1-2 shift shudder at light to moderate acceleration. replace complete second clutch assembly. *kb | 01/08/2007 | |
Consumer Complaints
| Fail date | miles | occurences | Purchase date |
|---|---|---|---|
| POWER TRAIN | |||
| 03/08/2013 | 111400 | ||
| When stepping on the gas hard from a stop it takes time for something to catch then it jerks and goes, when speeding up when driving, it jerks real hard when it shifts. bad transmission. leaks oil, headlights come on in the middle of the night, drains the battery. this car is a p.o.s | |||
| 12/01/2012 | 125000 | 1 | |
| Seems like a chemical smell like exhaust is coming into the car. makes you cough. you cant see any smoke . wondering if the exhaust system has too much back pressure causing extra exhaust to come in the fresh air intake. the same effect on a rental 2012 impala which has the same design, that car had only 16,000 miles. seems worse when the outside air is on, not so much when the recirculation is on. *tr | |||
| 12/01/2012 | 125000 | ||
| Seems like a chemical smell like exhaust is coming into the car. makes you cough. you cant see any smoke . wondering if the exhaust system has too much back pressure causing extra exhaust to come in the fresh air intake. the same effect on a rental 2012 impala which has the same design, that car had only 16,ooo miles. seems worse when the outside air is on, not so much when the recirculating is on. | |||
| 01/23/2011 | 47000 | ||
| Tl- the contact owns a 2006 chevrolet impala. the contact stated that he was unable to remove the key from the ignition. the vehicle was taken to a dealer for diagnosis and the contact was informed that the cause of the failure was a broken wire that connected to the shift solenoid. the manufacturer was notified but stated there were no recalls for the vin. the vehicle had not been repaired. the failure mileage was 47,000 and the current mileage was 109,000. mah | |||
| 01/23/2011 | 47000 | ||
| Tl- the contact owns a 2006 chevrolet impala. the contact stated that he was unable to take the key out of the ignition. the vehicle was taken to a dealer for diagnosis and was informed the cause of the failure was a broken wire connecting the shift cellunoid. the manufacturer was notified but stated there were no recalls for the vin. the vehicle had not been repaired. the failure mileage was 47,000 and the current mileage was 109,000. dt | |||
| 11/15/2010 | 60000 | 1 | |
| In the fall of 2010, i took my 2006 chevy impala ss to a chevy dealer for an oil change. while waiting for my vehicle, i was advised by the mechanic i should have the transmission flushed. i questioned him because there was only 60k miles on the car, also, had not noticed anything while driving that would indicate that being needed. i had the flush done anyway, and, since then, the transmission began slipping from a complete stop. it wasn't bad at first, only happened once in a great while. i took the car to the same shop that flushed the transmission to check on it, only to have them tell me there was no problem and they were unable to replicate the problem. i now have 80k miles on the car and the problem is getting worse, the slip happens almost every time i accelerate from a dead stop and i also feel torque shudder while at higher speeds. i have done research and this seems to be a common issue. i am driving the car but am very nervous doing so. i feel this can be a serious safety issue not knowing when the transmission will engage or disengage. *tr | |||
| 11/15/2010 | 60000 | ||
| In the fall of 2010, i took my 2006 chevy impala ss to a chevy dealer for an oil change. while waiting for my vehicle, i was advised by the mechanic i should have the transmission flushed. i questioned him because there was only 60k miles on the car, also, had not noticed anything while driving that would indicate that being needed. i had the flush done anyway, and, since then, the transmission began slipping from a complete stop. it wasn't bad at first, only happened once in a great while. i took the car to the same shop that flushed the transmission to check on it, only to have them tell me there was no problem and they were unable to replicate the problem. i now have 80k miles on the car and the problem is getting worse, the slip happens almost every time i accelerate from a dead stop and i also feel torque shudder while at higher speeds. i have done research and this seems to be a common issue. i am driving the car but am very nervous doing so. i feel this can be a serious safety issue not knowing when the transmission will engage or disengage. | |||
| 07/01/2010 | |||
| I have a 2006 chevy impala and there seems to be a problem with the transmission. we have taken the car to the dealers several times. we have changed the spark plugs, changed and flushed the transmission fluid. we are still having the car jerk off at a stop light. we you are stopped on an incline it also hesitates to go into gear and the jerks away! the dealer can never find a anything wrong and we have done all the recommeded fixes. this seems to be getting worse. the gas cap and solinoid have also had to be replaced which everyone has had problems with. gm should recall these cars before someone gets hurt! | |||
| 07/07/2012 | 77000 | ||
| Tl* the contact owns a 2006 chevrolet impala. the contact stated that while driving at all speeds, the cruise control activated and the vehicle decelerated. various warning lights also illuminated randomly. in addition, the gear shifted into park, but the vehicle continued to drive. the vehicle was taken to the dealer, who stated that the vehicle might have been experiencing internal electrical failures. the dealer also stated that the failure might be due to the transmission, but there were no warning lights indicating such. the vehicle was not repaired and the dealer offered no assistance. the manufacturer was not notified. the failure mileage was 77,000 and the current mileage was 79,000. | |||
| 07/02/2012 | 63000 | ||
| Tl* the contact owns a 2006 chevrolet impala. the contact stated that after exiting from a stop light, the vehicle lunged forward as though the transmission was slipping. the vehicle was taken to a mechanic who stated there was a valve in the transmission that failed and needed to be replaced. the manufacturer was notified of the issue who stated there were no recalls for the vehicle and offered no other assistance. the failure mileage was 63,000. | |||
| 07/02/2012 | 63000 | ||
| Tl-the contact owns a 2006 chevrolet impala. the contact stated that after exiting from a stop light, the vehicle lunged forward as though the transmission was slipping. the vehicle was taken to a mechanic who stated there was a valve in the transmission that failed and needed to be replaced. the manufacturer was notified of the issue who stated there were no recalls for the vehicle and offered no other assistance. the failure mileage was 63,000. kmj | |||
| 07/02/2012 | 63000 | ||
| Tl-the contact owns a 2006 chevrolet impala. the contact stated after pulling away from a stop light the transmission would lunged forward and it felt as if it was slipping. the vehicle was taken to a mechanic shop who stated there was a valve in the transmission that causes it to fail and needed to be replaced. the manufacturer was notified who stated there are no recalls or warranty. they offered no other assistance. the failure mileage was 63,000. mw | |||
| 02/01/2012 | 100000 | ||
| When i start from a stop the transmission does not fully engage for a few seconds. if i step on the gas, it rolls slowly forward, but once it catches it jerks forward really hard. i've know 2 others with this same issue, and the tranny shop says it's pretty common with these. cheap part to replace (clutch gasket or something), but $1700 in labor. i'm ready for a recall... | |||
| 06/15/2010 | 80000 | ||
| Tl* the contact owns a 2006 chevrolet impala. the contact stated that while driving approximately 25 mph, the check engine light illuminated on the instrument panel and the vehicle began to shake violently. the vehicle was towed to an independent mechanic for a diagnostic test. the mechanic cleaned the throttle body. the failure continued after the repair. the vehicle was taken back to an independent mechanic and the dealer approximately eight different times. the vehicle was repaired when the pcm was replaced and reprogrammed at the dealer. the approximate failure mileage was 80,000. | |||
| 06/15/2010 | 80000 | ||
| Tl-the contact owns a 2006 chevrolet impala. the contact stated that while driving approximately 25 mph, the check engine light illuminated on the instrument panel and the vehicle began to shake violently. the vehicle was towed to an independent mechanic for a diagnostic test. the mechanic cleaned the throttle body. the failure continued after the repair. the vehicle was taken back to an independent mechanic and the dealer approximately eight different times. the vehicle was repaired when the pcm was replaced and reprogrammed at the dealer. the approximate failure mileage was 80,000. sm. | |||
| 06/15/2010 | 80000 | ||
| Tl- the contact owns a 2006 chevrolet impala. while driving approximately 25 mph the check engine light illuminated on the instrument panel and the vehicle began to shake violently. the vehicle was towed to an independent mechanic for diagnostic. the mechanic cleaned the throttle body. the failure continued after the repair. the vehicle was taken back to an independent mechanic and the dealer approximately eight different times. the vehicle was repaired when the pcm was replaced and reprogrammed at the dealer. the approximate failure mileage was 80,000. da | |||
| 03/06/2012 | 56000 | ||
| Intermittently usually from a stop car acts like its in nuetral revs up and all of a sudden bangs into gear and takes off. very dangerous when in traffic and it unexpeditely does it when your trying to inch forward. almost causes a rear end collision because its intermittent. i am afraid i won't catch it in time. sometimes it goes for days without doing it and you get comfortable with it then wammo. took it to my shop and they tell me it could be a trans problem. bought car brand new and its happened before but seems to be getting worse. | |||
| 02/06/2012 | 60400 | ||
| I purchased a 2006 impala ss, just recently after reaching 60,000 miles my transmission started slipping in 4th gear and overdrive at highway speeds. a short 300 miles later the transmission failed completely while driving home from work on the interstate. i had the car towed to a local transmission shop where i was told it either needed to be rebuilt or replaced. i had it rebuilt for $2442 all out of my own pocket because my powertrain warranty had already expired. now a mere 3 months later and now currently at 69,200 miles the new transmission is showing the same exact symptoms it had when it failed the first time. again with no warranty and repair costs over 2000 dollars i will soon be forced to replace the transmission again. not to mention rental car costs and the inconvenience of having this happen twice within a year and 10,000 miles apart. other recent issues include a check engine light on for a cylinder 6 misfire due to an oil fouled spark plug and burning or using a full quart of oil every 1000 miles i'm sure major engine repairs are soon to come. it almost makes me sick to my stomach knowing i still have 4 more years to pay on this vehicle and all of these problems under 70,000 miles majority of which are highway driven. needless to say this will be the last gm vehicle i ever own. | |||
| 12/01/2011 | 15 | ||
| At the time my chevy had 105,000 miles on it the transmission went out, so i got it rebuilt it hasn't quite been a year a now the new transmission is stalling and not shifting correctly at times. also when using my turn signal to turn just as the wheel straightens up and the turn signal turns off it triggers the high beams to come on, this only happens if it's cold out or raining. | |||
| 09/19/2011 | 132000 | ||
| 2006 impala ss, transmission slipping, and not accelerating when initially depressing accelerator. vehicle maintained appropriately at dealership. the filter and fluid changed at recommended intervals. i have monitored similiar complaints from other impala owners. the transmission that chevrolet developed for the impala ls-lt-ss. does not appear to be a quality part. and if chevrolet does not do a better job or attempt to make this situation better, i to will move on to a foreign manufacturer. i have been a gm owner all of my life. i still own my 1988 oldsmobile cutlas. this situation with all of these complaints is just wrong | |||
| 12/20/2011 | 109000 | ||
| Tl-the contact owns a 2006 chevrolet impala. the contact stated that she attempted to accelerate from a stop while positioned on an incline, the vehicle momentarily hesitated before rapidly accelerating. the check engine light began to illuminate after the failure. the vehicle was taken to an independent repair shop and the contact was informed that there was a failure within the transmission. the vehicle was not repaired. the manufacturer was notified and the contact was awaiting a response. the failure mileage was 109,000. kmj | |||
| 12/20/2011 | 109000 | ||
| Tl-the contact owns a 2006 chevrolet impala. the contact stated that she attempted to accelerate from a stop, while positioned on an incline, and the vehicle momentarily hesitated before rapidly accelerating. the check engine light began to illuminate after the failure. the vehicle was taken to an independent repair shop and the contact was informed that there was a failure within the transmission. the vehicle was not repaired. the manufacturer was notified and the contact was awaiting a response. the failure mileage was 109,000. sm. | |||
| 02/10/2010 | 51000 | ||
| Transmission failure clutches worn slipping, had to have whole tranny rebuilt, took it to chevy dealer 8 months ago after it was slipping and banging into gear and whining noise (which was the bearing in the transmission being worn, chevy dealer said nothing wrong sent me home.. 8months later and $2,600 later had to have it rebuilt by private transmission shop. | |||
| 11/10/2010 | |||
| I got my car march 2006 ran smooth for two years then problems started. first my driver side window fell . next when i turn on my heat or a.c loud tapping sounds occur for about 5mins. third when i turn my steering wheel to the left it make a popping sound. and the worst of all my transmission is slipping. everyone i know with chevy impala are having some of the same problems. something need to be done!!!!1 | |||
| 03/01/2009 | 100010 | ||
| Tl-the contact owns a 2006 chevrolet impala. the contact stated that the vehicle would shift hard and would remain stuck in a certain gear. also, the vehicle would violently jerk. the contact was awaiting a service appointment with the dealer and the manufacturer was made aware of the failure. no repairs were performed. the current mileage was 124,906 and the approximate failure mileage was 100,010. kmj | |||
| 03/01/2009 | 100010 | ||
| Tl-the contact owns a 2006 chevrolet impala. the contact stated that the vehicle would shift hard and would remain stuck in a certain gear. also, the vehicle would violently jerk. the contact was awaiting a service appointment with the dealer. the manufacturer was aware of the failure. no repairs were performed. the current mileage was 124,906. the approximate failure mileage was 100,010. bw | |||
| 07/04/2011 | 113000 | ||
| Tl- the contact owns a 2006 chevrolet impala. the contact stated while making a left turn the steering wheel became difficult to turn. the vehicle also hesitated then surged forward, after the accelerator pedal was depressed. the vehicle was taken to the dealer, and the manufacturer was contacted regarding the failure. the vehicle was not repaired. the failure mileage was 113,000 and the current mileage was 115,000. rvk | |||
| 07/04/2011 | 113000 | ||
| Tl- the contact owns a 2006 chevrolet impala. the contact stated while making a left turn the vehicle steered hard in the same direction. the contact also added the vehicle hesitated then surged forward, after the accelerator pedal was depressed. the vehicle was taken to the dealer, and the manufacturer was contacted. the vehicle was not repaired. the failure mileage was 113,000 and the current mileage was 115,000. rds | |||
| 06/03/2011 | 142000 | ||
| Tl * the contact owns a 2006 chevrolet impala. the contact was driving 30 mph when the vehicle began squeaking abnormally. the contact mentioned that the vehicle hesitated and she was unable to continue driving. the vehicle was taken to a local mechanic who diagnosed that the transmission was defective and needed to be rebuilt. the manufacturer was not made aware of the failure. the vehicle was repaired. the failure mileage was 142,000 and current mileage was 150,000. | |||
| 06/03/2011 | 142000 | ||
| Tl - the contact owns a 2006 chevrolet impala. the contact was driving 30 mph when the vehicle began squeaking abnormally. the contact mentioned that the vehicle hesitated and she was unable to continue driving. the vehicle was taken to a local mechanic who diagnosed that the transmission was defective and needed to be rebuilt. the manufacturer was not made aware of the failure. the vehicle was repaired. the failure mileage was 142,000 and current mileage was 150,000. kmj | |||
| 06/03/2011 | 142000 | ||
| Tl - the contact owns a 2006 chevrolet impala. the contact stated that while driving 30 mph the vehicle started to make a squeaking sound. the contact mentioned that the vehicle hesitated and she was unable to continue driving. the vehicle was taken to a local shop who diagnosed that the transmission was defective and needed to be rebuild. the manufacturer was not made aware of the failure. the vehicle was repaired. the failure mileage was 142,000 and current mileage was 150,000. pm | |||
| 01/30/2009 | 51000 | ||
| Tl*the contact owns a 2006 chevrolet impala. the vehicle was taken to the dealer on several occasions for failures with the heater blowing cool air, the gear shift changing incorrectly, and the tire monitor indicator constantly illuminating. on january 30, 2008, the contact drove approximately 25 miles. she then pulled into the driveway and noticed smoke underneath the hood, followed by flames. she quickly extinguished the fire and the vehicle was towed to the dealer. it was diagnosed that the power steering hose failed and caused the fluid to leak. the vehicle will be repaired. the current and failure mileages were 51,000. | |||
| POWER TRAIN - AUTOMATIC TRANSMISSION | |||
| 02/03/2012 | 62507 | 1 | |
| 2006 chevrolet impala transmission failure at 62,700 miles. *tr | |||
| 02/03/2012 | 62507 | ||
| 2006 chevrolet impala transmission failure at 62,700 miles. | |||
| 02/26/2012 | 58773 | ||
| Transmission slipping, hard shifts, broken motor mounts. transmission acts like it's not in gear, doesn't engage until about 2,000 rpm then slams into gear. also slips when shifting from 1st to 2nd and again when in 4th gear. transmission failure, the transmission fails to fully engage in to any gear when it is supposed to, it will slip and catch from a stop, the torque converter fails to lock up and all gears slip under moderate to heavy acceleration. | |||
| 09/12/2009 | |||
| I have a 2006 chevy impala and there seems to be a problem with the transmission. i have taken the car to the dealer several time and have aven had the transmission flushed but am still having the car jerk off at a stop light. the dealer can never find a problem and it seems to be getting worse. i am part of an chevrolet family and we have a total of 8 impala and we all seem to be experiencing the same problem. also the power steering belts and pulley always make a hissing sond when the eteering wheel is turned and have had this looked at and have had the hose replace several times only to have the problem to reappear. is there a recall on these issues. having to pay out of pocket for these things now as my car is out of warranty now. | |||
| 06/13/2011 | 87000 | ||
| Transmission slipping and finally no forward or reverse gears. broke down monday morning after being into gm dealer friday for a check up with no problems or issues found. | |||
| 05/17/2010 | 75000 | ||
| Tl- the contact owns a 2006 chevrolet impala. the contact stated the vehicle seems to hesitate randomly when accelerating from a stop light. the contact took the vehicle to the dealer and was told the problem generated from the transmission and called it a phantom shift. the dealer stated they would have to pull the transmission apart to make the repair. the failure mileage was 75,000 and the current mileage 90,000.rl | |||
| 06/02/2011 | 100000 | ||
| Tl* the contact owns a 2006 chevrolet impala. the contact stated that the gear shifter was stuck in park and would not allow the driver to move the vehicle at all. in addition, the driver side seat belt latch was fractured. the dealer and manufacturer were contacted but the failure was not repaired. the failure and current mileage was 100,000. | |||
| 05/17/2010 | 75000 | ||
| Tl- the contact owns a 2006 chevrolet impala. the contact stated the vehicle seems to hesitate randomly when accelerating from a stop light. the contact took the vehicle to the dealer and was told the problem generated from the transmission and called it a phantom shift. the dealer stated they would have to pull the transmission apart to make the repair. the failure mileage was 75,000 and the current mileage 90,000.rl | |||
| 06/02/2011 | 100000 | ||
| Tl- the contact owns a 2006 chevrolet impala. the contact stated that her vehicle's gear shift was stuck in park and would not allow the driver to move the vehicle at all. the dealer and manufacturer were contacted. the failure was not repaired. the failure and current mileage was 100,000. also the latch on the seat belt was broken, making it impossible to drive with a seat belt on. nw | |||
| 01/01/2010 | |||
| 2006 impala 3.5 ,noise and vibrations from transaxle and or cv joints,this happens at all speeds and the noise gets louder when turning left, i have'nt done anything to correct the problem . | |||
| 04/26/2011 | 71000 | ||
| Impala ss with only approximately 71,000 miles, major transmission malfunction / failure without any prior warning. vehicle had only been serviced at gm dealership since purchased, all regular maintenance followed. transmission slippage combined with harsh shifting, torque converter shudder, grinding noises from gears. vehicle would alternate between not going forward or, once moving, very difficult to stop vehicle because transmission did not disengage (nearly rear ended other vehicles, had to stand on brake pedal). no warning lights nor dash indicators, but remote diagnostic via onstar confirmed transmission failure and directed for immediate repair. valve body, pressure regular, all solenoids (rebuild) replaced under gmpp extended warranty coverage. not even two weeks later, problems returned but worse. nhtsa campaign # 10021844 and tsb # 070730012c seem to address this issue. vehicle now at gm dealership being assessed. onstar diagnostics found no issue. still no warning indicators, but vehicle have high rpm without any forward motion when accelerator depressed. rpms would also bounce up and down erratically on highway at steady speed, vibrations and whining noises from transmission. apparently this is known defect with multiple vehicles equipped with the 4t65-e transmission, but there has never been any recall. cost of repairs for this between $4,000 and $6,000 if not under warranty. this likely effects hundreds of thousands of gm vehicles covering many model years. | |||
| 01/01/2009 | 62000 | ||
| I have a 2006 impala ss. the car was purchased used with approximately 12k miles, in early 2009 at 62k the transmission failed, stranding my family on the pa turnpike. in january 2011 at 101k we had to replace the transmission again. luckily we purchased a gm power-train transmission and it came with a 3yr warranty. the failure symptoms were identical for each occurrence. 1st the transmission would occasionally shudder while shifting. eventually it would shudder and predictably slip when maintaining a speed at or near 1800 rpm. this was especially noticeable driving up hills. finally the car would not move while the engine rpm spiked when pressing the accelerator pedal. the entire failure period was around 1000 miles from the 1st sign that the transmission was having difficulty to shifting to the final failure. the transmission appears to reach very high temperatures and has a long cool off period. when replacing the power steering gear i noticed that the exhaust and engine were cool to the touch, but the transmission remained warm through out the repair. thank for your attention in this matter. | |||
| 01/16/2011 | 58000 | ||
| Car started running sluggish more and more until the transmission died and needs a rebuild. taken to a shop to get it rebuilt. | |||
| 01/01/2009 | 70000 | ||
| I am writing to complain about the 4t65e-hd transmission in general motor's lineup of v8 powered w-body platform cars. i have experienced many issues of this transmission slipping and hesitating on acceleration from a stop. i have been experiencing the issue for about 30k miles now. the car is not beaten, or driven hard at all. all my routine maintenance has been done. i first took it to the dealer to complain about the slipping transmission, and even though the tech felt the transmission issue, i was told that unless the transmission is throwing a code, there is nothing that they could do for me. i have put about $500 into work on this transmission so far with minimum success. i have flushed the transmission totally, which seemed to have fixed the transmission for about a week. another thing that i attempted per the reccomendation of a gm master tech was to change the valve body. which i did and it corrected the issue for 3 days. now the transmission is slipping when driving on the highway at a constant speed/rpm.. almost like it feels the motor is misfiring. i have checked the fluid level, and the fluid. the level is fine and the fluid is not burnt. i feel that gm needs to step up and rectify the problem of these garbage transmissions. i have owned 2 other cars with the same transmission (95 monte carlo z34 and a 01 pontiac gtp). both vehicles experienced these same issues and the transmissions blew up. why would gm continue to use such a weak major component. i know of 100+ other v8 w-body owners experiencing these same issues. | |||
| 01/01/2006 | |||
| 2006-2009 chevrolet impala ss, 2006-2007 chevrolet monte carlo ss, 2005-2008 pontiac grand prix gxp and 2007-2008 buick lacross super with the ls4 5.3l v8 engine and the 4t65e-hd transmission mn7. the ls4 v8 engine is rated by gm at 323 lb-ft of torque. allegedly, the documents from gm for the transaxle mated to this motor is only rated for 280 lb-ft of engine torque; 43 lb-ft of torque lower than the output of the engine. this could possibly leave a vehicle equipped with this motor and transaxle combination with a high failure rate and a possible safety hazard while in traffic. the referenced specifications can be found at: http://archives.media.gm.com/us/powertrain/en/product_services/2006/spec%20sheets/communications%20nao%20only%20spec%20sheets/transmissions/2006%20automatics/2006%204t65-e%20(m15,md7,mn7,m76).pdf and http://archives.media.gm.com/us/powertrain/en/product_services/2006/spec%20sheets/gen%20iv/2006%20gen%20iv%20ls4%20car.pdf via http://archives.media.gm.com/us/powertrain/en/product_services/2006/car%20eng%20trans.html | |||
| 11/25/2010 | 59000 | ||
| Transmission has been rebuilt once, then subsequently replaced with a remanufactured unit from general motors. this remanufactured transmission is now displaying anomalous behavior. prior to each failure, the transmission exhibited a variety of incorrect behavior, including rapid torque converter clutch locking and unlocking, slipping and reving from a stop, without the car moving, then suddenly slamming into gear with the car moving away from rest. the most recent issue has been an oscillation on 4-3 downshifts at approximately 60 mph, as well as excessive transmission heat build-up with the torque converter unlocked. the first time the transmission displayed odd behavior, which was torque converter lock and unlock at cruising speeds, dealer drove the car acknowledged the problem, and upon disassembly, found torque converter clutch material in the pan. they rebuilt the transmission with new soft parts and replaced the converter. vehicle had 59,000 and this was all performed under warranty. about 23,000 miles later, when pulling away from a stop, the engine would rev up momentarily, but the car would not move. it would then slam into gear and move off. dealer confirmed issue, disassembled, and determined that the torque converter clutch had again failed. dealer replaced transmission with a remanufactured unit. this was all done under warranty. vehicle had approximately 86000 miles at this time. immediately upon receiving car back after replacement of transmission, noted oscillation on 4-3 downshifts, as well as much higher transmission temperatures with converter unlocked (about 40 degrees higher), as well as excessive looseness of the torque converter. returned to dealer, who claimed all was normal. since that time, warranty has expired. the oscillation and heat issues have worsened, and the car is now being serviced at an independent shop and having a partial rebuild. | |||
| 01/01/2006 | |||
| 2006-2009 chevrolet impala ss, 2006-2007 chevrolet monte carlo ss, 2005-2008 pontiac grand prix gxp and 2007-2008 buick lacross super with the ls4 5.3l v8 engine and the 4t65e-hd transmission mn7. the ls4 v8 engine is rated by gm at 323 lb-ft of torque. allegedly, the documents from gm for the transaxle mated to this motor is only rated for 280 lb-ft of engine torque; 43 lb-ft of torque lower than the output of the engine. this could possibly leave a vehicle equipped with this motor and transaxle combination with a high failure rate and a possible safety hazard while in traffic. the referenced specifications can be found at: http://archives.media.gm.com/us/powertrain/en/product_services/2006/spec%20sheets/communications%20nao%20only%20spec%20sheets/transmissions/2006%20automatics/2006%204t65-e%20(m15,md7,mn7,m76).pdf and http://archives.media.gm.com/us/powertrain/en/product_services/2006/spec%20sheets/gen%20iv/2006%20gen%20iv%20ls4%20car.pdf via http://archives.media.gm.com/us/powertrain/en/product_services/2006/car%20eng%20trans.html | |||
| 11/25/2010 | 59000 | ||
| Transmission has been rebuilt once, then subsequently replaced with a remanufactured unit from general motors. this remanufactured transmission is now displaying anomalous behavior. prior to each failure, the transmission exhibited a variety of incorrect behavior, including rapid torque converter clutch locking and unlocking, slipping and reving from a stop, without the car moving, then suddenly slamming into gear with the car moving away from rest. the most recent issue has been an oscillation on 4-3 downshifts at approximately 60 mph, as well as excessive transmission heat build-up with the torque converter unlocked. the first time the transmission displayed odd behavior, which was torque converter lock and unlock at cruising speeds, dealer drove the car acknowledged the problem, and upon disassembly, found torque converter clutch material in the pan. they rebuilt the transmission with new soft parts and replaced the converter. vehicle had 59,000 and this was all performed under warranty. about 23,000 miles later, when pulling away from a stop, the engine would rev up momentarily, but the car would not move. it would then slam into gear and move off. dealer confirmed issue, disassembled, and determined that the torque converter clutch had again failed. dealer replaced transmission with a remanufactured unit. this was all done under warranty. vehicle had approximately 86000 miles at this time. immediately upon receiving car back after replacement of transmission, noted oscillation on 4-3 downshifts, as well as much higher transmission temperatures with converter unlocked (about 40 degrees higher), as well as excessive looseness of the torque converter. returned to dealer, who claimed all was normal. since that time, warranty has expired. the oscillation and heat issues have worsened, and the car is now being serviced at an independent shop and having a partial rebuild. | |||
| 09/23/2010 | 55541 | ||
| I have a 2006 chevy impala lt 3.9 with 55000 miles just had to put water pump 2by pass hose and bottom hose bill came to around $470. this car has been babied ever since new and with top notch service performed regularly. besides this problem the tire air sensors are also a joke replaced two of them at around $70.00 each. still don't work properly. while i'am on roll i should mention the remote start, unlock, system is also a joke, took it to a dealer told them it would not work anything, they came back to me two hours later and said the modual in drivers door was bad, two remotes ,modual, calibration and $917.00 and they would have me on my way. ha ha. told them to put it back together and i was paying my 80.00 for the time spent and leaving. as i was going to my car the service rep. said when they put it back together it began working, everything but tire pressure info. i have read other people have remote problems just wondered how common this problem is. also i connot believe my water pump went bad @55000 miles. | |||
| 06/24/2010 | 11000 | ||
| Transmission lunges from a dead stop upon acceleration. does not move with increased rpms until torque converter bangs. problem has existed since purchase in 2006 with 11,000 miles. taken to dealer multiple times with no problem found. multiple complaints with this per internet search. chevrolet evidently will not own up to this problem. | |||
| 04/16/2010 | 30000 | ||
| My 2006 chevy impala ss was recalled for a power steering oil line leak. when it was on the lift, it was discovered that the oil line on the transmission also leaked. the line leaked where the rubber line was crimped onto a metal line. the dealer stated that they had replaced several of these. it was not covered by warranty. since there was no oil dripping onto my concrete driveway, i assume that it leaks under pressure. this is a defective part. | |||
| 08/12/2009 | 38000 | 1 | |
| Gm 2006 impala transmission failure. upon initial operation transaxle shudders, stutters, and stalls upon acceleration demand. failure creates an unanticipated and warning-less slow-down of my vehicle directly in front of other accelerating vehicles. a safety hazard results from possible rear-ending by following motorists that have to be unaware the car in front of them has stuttered and slowed down. it also is a problem for drivers as they cannot accelerate or pass other cars, and cannot safely or confidently evade road objects/debris/potholes. a review of this transaxle problem indicates many gm motorists share the same problems and voice the same concerns. *tr | |||
| 08/02/2007 | 18000 | ||
| Tl*the contact owns a 2006 chevrolet impala. the contact stated that the transmission jumped forward. while attempting to accelerate from a stop, the engine revved and the vehicle lunged forward. the vehicle has been to the dealer several times for the same issue, but they cannot determine the cause of the failure. the failure mileage was 18,000 and current mileage was 27,000. | |||
| 08/11/2008 | 50000 | 1 | |
| Transmission problems.. jerking when trying to back in a parking space. seals had to be replace due to a transmission leak. *tr | |||
| 04/15/2007 | 5000 | 1 | |
| Recall on something in the brain of the car (it's computer).about 2 weeks later car started losing power on the freeway going twenty five and the rpm's as high as it could go in the red, the car completely shut off after making a loud noise rebuild the transmission due to an ?electrical? problem. they did not replace the transmission on my new car 1 week later car would not turn off! key out and it was still running kill battery several times speakers are not properly working along with the factory alarm 2 months later the car did it again i can't even get the car to lock period, every time i manually lock the doors, they automatically unlock i'm downtown los angeles with my children in the car and it totally just over heats and cuts of in all of five seconds with a big city bus directly behind me. this starts july 3rd, 2008 the car will not cut off, not even when my husband pulled its fuse, period, it just kept running till the battery died and the car lost all power. july 10th, 2008 they call me to pick my car up, it's ready again!!! july 11th, 2008 they had to tow it back because the car overheated, then would not turn off and the engine stated it had low power, what ever that means...grrrrhhhh!!! august 27th, 2008 the car would not shut off, even once we pulled the fuse, the engine started shaking uncontrollable like it was going to jump out and the dash board was reading all types of crazy messages!!! this car really scares me! i'm looking for an attorney to help me with this, i can't do it anymore, this was 8 times too many and now that i'm less then 10k from my warranty being i feel like s & j has been scamming me!!!! *tr | |||
| 08/27/2008 | 5000 | 1 | |
| I'm a faithful customer of s&j since childhood and my mother purchased her vehicles there. up to this point i thought i could trust your service department to do honest work on my 2006 chevy impala. indeed this did not happen! my vehicle has returned about 8 times for same or similar problem. fernado is a great customer attendant, but he does not work on my car, so what i feel is not directed towards him. here is a list of chain of events that i have inquired since ownership of my new-used chevy in feb. 2007. i have a new chevy impala. within a year of ownership, the car has been to the dealer 8 times for major repairs (none due to my own fault)! *tr | |||
| 02/17/2008 | 1041 | 3 | 03/20/2006 |
| Tl*the contact owns a 2006 chevrolet impala. while driving 65 mph, the power steering failed. the dealer stated that the power steering hose was leaking and they repaired the failure. currently, the power steering column has failed again after the dealer stated that the vehicle was operating properly. the current and failure mileages were 36,000. updated 03/26/08. *lj the transmission reverse gear was defective, the transmission also had a delayed engagement. the windshield was cracked, the left front door was out of alignment. one of the tire was loosing air. | |||
| 10/04/2007 | 20200 | 0 | 01/05/2006 |
| I am a police officer and have had several occasions while on traffic stops, that my assigned 2006 impala has rolled backwards after i had gotten out of the car to approach a traffic violator; i had to jump back in and put it back in park.. on 10/ 04/07 this car almost cost me my life. i blocked an entrance ramp and when i got out of the car i stood by the open driver door. the car jumped into gear and backed over me. i was drug backwards and could not free myselfas i was being helplessly dragged under my car. when the car went into the median it dug my body into the dirt. i was able to roll from underneath the car. i then jumped back in and stopped the car from crossing the expressway. i have been on the streets as a beat officer for over 21 years and have never had anything like this happen. i spoke with another officer and he also has had the same problem while on traffic stops. i was advised by fleet management that there has been one other incident reported. my patrol car was towed on oct 8 and later i was advised by fleet management that gm reps looked at the car and found nothing wrong. fleet management personnel refuse to give me any information as for a contact person with gm. note -as of 10/19/07 they still have the car under lock and key. i sustained road rash, bruising, cervical strain, and a possible fracture in my back. i have contacted my local fraternal order of police president and he has been gathering information as to several other officers that have had their assigned 2006 impala go out of gear and strike objects. in addition they had been charged with the accidents and points assessed. per my fop president an investigation is being done to remove those officers points and diciplinary action per my unfortunate incident. my concern now is for the safety of the citizens on a national level, while these chevy impalas are being used for public safety. *tr | |||
| POWER TRAIN - AXLE ASSEMBLY | |||
| 03/01/2007 | 12000 | 1 | 02/03/2007 |
| Automobile has a bouncy ride. front right axle has been replaced as well as tires replaced. ride is still bouncy, especially when accelerating through first and second gear. *ak | |||
| POWER TRAIN - AXLE ASSEMBLY - AXLE SHAFT | |||
| 04/13/2007 | 20500 | 2 | 03/05/2006 |
| Leased 2006 impala lt 3/06. 2/07-first thing that happened was power steering line blew while driving on highway at 70 mph. had towed vehicle to dealership and it was fixed. they left all the fluid all over engine and brakes. shortly after, experienced clanking noise from front of vehicle. took to dealer first time, they said they couldn't find the cause of the problem, could be left over power steering fluid from the blowout, causing noise on moving parts. also noticed tires were wearing. got oil change and 3rd tire rotation for vehicle. tires still wearing in front and noise becoming more prominent in front. took back to dealer, said it was a trans axle problem, and was also causing an alignment problem. they corrected the trans axle problem under warranty, but said the alignment and excessive wear on tires was my problem. this didn't seem right, a problem on the vehicle caused another problem, but it was my responsibility. they said they alignment was ok now. i asked if they checked and they said no, it would be okay since the trans axle problem was corrected. they said i could complain, they just follow the rules from up above. *ak | |||
| POWER TRAIN - CLUTCH ASSEMBLY | |||
| 11/15/2006 | 1000 | 1 | 10/02/2006 |
| Tl*the contact owns a 2006 chevrolet impala. while driving 10 mph or stopped at a stop sign, the vehicle lunges forward 10 to 15 feet by itself. the failure occurs whenever the vehicle is driven. the vehicle performs the same way when in reverse. for the past two months, the service department at the dealer has had the vehicle. all of the service department personnel agreed that the vehicle lunges forward abnormally, but stated that nothing could be done. the current mileage was 7,000 and failure mileage was 1,000. updated 01-10-08. *kb the consumer stated overhead dome light stayed on, transmission hesitates and bumps on 1-2 shift, and a/c blows warm intermittently. updated 01/04/07 *tr | |||