When taking off from a start the transmission doesn't engage causing the engine to rev, then it slams into gear eventually. Have also noticed a decrease in power somewhat. Have had it in the dealer for service 3 times and of course they say they cant find anything wrong with it. Kinda crappy since the warranty just went out on the drive train about a month ago. Problem only seems to be getting worse. I have read on forums of this issue on numerous vehicles that use the 4t65-hd transmission and that gm refuses to acknowledge that there is a flaw in these transmissions.
2008 Chevrolet Impala transmission complaints
Page 4 of 4: complaints 71 to 91 of 91, newest first, as owners wrote them.
Tl* the contact owns a 2008 chevrolet impala. The contact stated that whenever decelerating to a stop or when attempting to accelerate from a stop, the vehicle would independently shift into low gear and start to jerk violently. The failure recurred intermittently. The vehicle was taken to the dealer who inspected the vehicle but could not determine any failure. The manufacturer was notified who informed the contact to take the vehicle back to the dealer. The vehicle was not repaired. The failure mileage was 60,000 and the current mileage was 71,000.
Tl* the contact owns a 2008 chevrolet impala. The contact stated that while driving 70 MPH, the vehicle erroneously shifted into neutral, causing the vehicle to stall. As a result, another vehicle crashed into the rear of the contact's vehicle during the failure. The contact was knocked unconscious. The driver and the contact suffered a concussion. The contact also suffered an ankle injury. The driver of the other vehicle suffered a leg injury. A police report was filed. The contact stated that the failure had also occurred prior to the crash. The contact did not take the vehicle to a dealer or mechanic for diagnostic testing or repairs. The failure mileage was 117,000.
At a stop sign on signal, vehicle would not shift into 1st unless stepping hard on gas. Transmission would slip until engaging at higher RPM. This has happened on a number of occasions and has been taken to the dealer to be looked at. Dealer can't seem to replicate the issues I've had. Have had dealer service manager with me and it still would not to it. 10/1/2012. Doing the same thing. 83,000 miles. Gm and dealer aware of previous issues. Have not contacted dealer of gm this time. I give up.
Accelerating at approx. 30% onto interstate on-ramp, engine RPM flare when shifting into 3rd from 2nd, and into 4th from 3rd. Has repeated off and on intermittently since. Fluid is not burned/deteriorated.
Three months after I bought my car I got in it about 7 am to go to work. When I put my car in reverse I heard a noise so I looked at the screen and the check engine light came on and the engine power is reduced light was flashing as well and my car wouldn't go over 40 MPH. I called the dealership and they said to bring it in after work and they will look at it. The first time the said it was the throttle pedal assembly so I replaced that. Two weeks later the same thing happened, this time they said I had a pinched wire and they fixed it. Again it came on when I had been in an accident and I was told the computer was jarred so they reset it. A month later on august 18, 2012 I was sitting at a stop sign waiting to turn right and when I went to turn my car stalled out in the middle of the road and I was almost hit by a car coming around the curve. I got scared so I turned around to go home and it stalled out on me four more times before making it 5 miles down the road. I had my 3 small children in the car with me at the time and they got pretty shaken up as well.
2008 chevrolet impala ss with 5.3l ls4 engine and 4t65e-hd transmission experience torque converter failure at 55k miles requiring full transmission replacement. Replacement transmission beginning to exhibit same torque converter shudder behavior again and warranty will be expiring soon. 4t65e-hd transmission only rated for 280 ft-lbs torque, ls4 v8 produces 323 ft-lbs. This is clearly negligence on the part of general motors and a solution must be reached for owners of these vehicles!
Tl* the contact owns a 2008 chevrolet impala. The contact stated that while parking, the gear shift seized and the gears could not be changed. The contact turned off and restarted the vehicle several times before being able to shift into drive. The failure recurred several times. The vehicle was not taken to a dealer or repair shop for inspection or repairs. The contact removed the cover on the gear shifter box and noticed there was a broken wire. The contact stated that the keys had become stuck in the ignition switch. The manufacturer was made aware of failure however no further assistance was provided. The current and failure mileage was 68,282.
My car shut off with a reduced engine power message with my two small children in the car while the car was in motion.
Reduce power light comes on. Cars speed drastically reduces. If you pull over and wait for about ten minutes and restart the car,it resets itself.
I was traveling on a highway near to my home, and for about a month now the vehicle has come up with an error stating "reduced engine power". Suddenly, the vehicle simply stalled itself, coming up with a message that stated "starting disabled/service throttle". I was traveling uphill at 40mph, now with no power brakes, no power steering, and the engine completely shut off and unable to restart. Luckily I was able to pull over and disconnect the battery and reconnect it to restart it. What if this had happened on a highway on or off ramp? Or on a corner? Or with a vehicle traveling behind me? I believe any vehicle that will just randomly turn itself off due to a part that has had hundreds of complaints that I've just read online is unsafe to be driven on america's highways. I read online that this was a prevalent problem with these vehicles, and I hope I get injured because of it so I can sue gm.
Tl* the contact owns a 2008 chevrolet impala. The contact stated that the gear shift would not release from the park position. The vehicle was towed to an authorized dealer to have a diagnostic test performed, but the vehicle was not repaired. The manufacturer stated that the failure was not recalled and denied assistance with the repairs. The failure and current mileages were 39,211. The VIN information was not available.
Safety issue - vehicle looses power and control. The service stabiltrak and no power to the engine service lights appear and the car looses control and power while driving... Multiple incidents gm dealer could not identify/fix. This recurring issue is a serious safety concern driving down the road in the snow loosing power and control will cause accidents/injury.
Tl* the contact owns a 2008 chevrolet impala. The contact stated that after the vehicle was turned on it would not shift out of the park position. The vehicle was towed to an independent mechanic who did not diagnose the failure. The vehicle was not repaired. The failure and current mileages were approximately 50,000.
Tl* the contact owns a 2008 chevrolet impala. The contact stated that while attempting to accelerate from a stop, the vehicle hesitated before jerking into gear. The vehicle was taken to an authorized dealer where they were unable to diagnose the failure. The vehicle continued to intermittently hesitate while accelerating and would jerk in various gears. The failure mileage was 68,000 and the current mileage was 84,000.
Transmission slips, rolls backwards when accelerating uphill, vibration when accelerating from stop, grinding/ rattling noise from transmission.
2008 impala, each time I drive through water at slow speeds, the power steering locks up and the battery error signal illuminates. The car does not handle whatsoever and there have been near misses on three occasions. This has not proven to be an issue on the highway or on roads at higher speeds over 25 MPH. I inquired at the dealership and they were not helpful as the warranty has run out on the vehicle.
2008 chevrolet impala gearshift could not be moved from "park". Towed to don brown chevrolet (after tow driver disconnected shift linkage). Diagnosed as "test and trace ground circuit to broken wire in center console". Talked to service manager who reported that technician stated wires moved when the shifter was moved which likely caused wire to break separate. Potential for driver to be "stuck" in park in a risky / unsafe situation exists.
Yesterday, my chevy 08 impala would not shift out of park. I contacted aaa who was unable to help me. I had my car towed to a car mechanic. He told me that the problem was that the wiresunder the gear shift lever had come unattached. I was told that even though chevy was aware of this problem there was not a recall and my manufacturer's warranty would not cover it because the bumper to bumper was over at 36, 000 miles. I had to pay $ 91 to have the wires reconnected back into the piece even though the problem is that the wires are to short to begin with and that is why they can become tangled and tear out of the connecting piece. I do not think that it is fair for the consumer to have to pay for this when it is clearly a manufacture defect..
Tl*the contact owns a 2008 chevrolet impala. The contact stated that the vehicle will roll backwards before moving forward when it is parked on an incline. While driving downhill at 5 MPH, the contact placed the vehicle into reverse and the vehicle went forward before moving backwards. The contact feels this is a safety issue. The current and failure mileages were 850. 4/01/09 *nj updated 04/09/09.
Gm advertises that mileage for average highway driving is 28 mpg. The car does not meet or even come close to this standard. I have tested mileage with 100% highway driving and the max mpg is 23. With some minimal off highway driving (to and from highway) the mpg averages 21 to 22. Off highway mpg averages 19. My investigations have found that gm has changed the final drive ratio. At 70 MPH the engine RPM is 2,300. That is 300 RPM more that previous model years.
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