2007 GMC Acadia: hesitation when accelerating

Filed Aug 1, 2018 · Transmission · 61,000 miles · MD

Tl* the contact owns a 2007 gmc acadia. While driving various speeds, the vehicle jerked and hesitated when switching gears. The failure was also present while driving in reverse. The failure was not diagnosed or repaired. The manufacturer was notified of the failure and did not assist. The local dealer was not notified. The failure mileage was 61,000.

Filed Mar 6, 2018 · Electrical · 120,000 miles · NV

Vehicle was at idle for 10 minutes before putting it in to drive on the evening of 3/3/2018. Began driving the vehicle and the stability/traction control light immediately came and began to shake violently on acceleration. All the dash lights began to flicker and then all electrical eventually died within 30 seconds of putting the vehicle in to drive. Once the car was safely pulled over, I noticed smoke coming from under the hood that had the smell of plastic or burnt wires. I popped the hood and the smoke was coming from the fuse box area. Thankfully the car didn't catch on fire. Some history on this vehicle; it was brought in to our local gmc dealership around september 2016 with stability trac control issues which was causing the car to hesitate roughly at idle and acceleration. After investigating, the dealer found that it was a loose wire on the bottom of the fuse box that was causing the problem; which they fixed and the problem never came back until the evening of our incident when the stc light came on; followed by the electrical failure throughout the entire vehicle... I'll put my money on that fuse box again as being the culprit. Aaa (battery systems technician) came out this morning to take a look at it and when he tried to run tests on the battery but the gmc was back feeding power in to his cables and melted them and the connector on his truck. He said that he thinks that it's the fuse box (without knowing history) but has never seen anything like this and suggested that we take it to a shop. It doesn't look like there are any recalls relating to this so this will be out of pocket to keep my family safe. Car will be headed to the shop soon but dreading the thought of that bill I don't feel we should have to pay on seeing is that this is a big safety issue.

Filed Oct 5, 2015 · Transmission · 140,000 miles · MI

Going down the expressway at 70 MPH. Vehicle started hesitating and wouldn't go. I had to pull off to the shoulder of road in a construction zone. Had it towed to the closeset mechanic. Was told it was the wave plate on transmission. Yes, my 2007 gmc acadia has 140,000 miles on it. But this part is defective. I have never been so scared.. Luckily I wasn't hit.

Filed Dec 8, 2013 · Transmission · 112,000 miles · AL

Transmission failure...first noticed car hesitated accelerating while attempting to pass or getting on interstate and rpms would jump up to 4-5k then hesitation in accelerating before jumping into fear...then later increased rpms at30mph and would not accelerate. This happened many times but would go days/weeks in between incidents. After taking to shop and researching this is a very common problem with this model...wave plate failure in TCM ( poor quality part) this is so dangerous....after first incident I became more aware of how the car would behave and was better prepared when it decided to jump into a higher gear or hesitate. Car is being repaired now and thankfully my family stayed safe. Too many owners with same problem for this safety issue to be ignored. Please help.

Filed Oct 30, 2013 · Transmission · TN

When pulling out from a stop, the vehicle shifts very hard from 1st to 2nd gear. Sometimes there is a loud crunching sound and occasionally it will shudder while driving. The vehicle hesitates all the time when trying to accelerate, and will not downshift when going up hills. Erratically changes gears even while traveling at the same rate of speed, like it is not sure what gear to be in. The check-engine light will come on and it will not change out of 1st gear, and it will stay this way until the vehicle it turned off and left alone for a few minutes. Then the light will go away after it is driven about 50 miles. I have had the shift solenoid replaced ($450 expense) which is that the code said was wrong, and this did not fix the problem or help anything.

Filed Aug 10, 2013 · Transmission · 86,284 miles · NJ

While on a vacation trip with the family, my 2007 gmc acadia started to hesitate and buck when accelerating from a stop. When I arrived at my destination and pulled into the parking lot, when the transmission completely stopped working with no forward or reverse gears. I had to have the car towed to a gmc dealer and have a broken 3/5/reverse (35r) waveplate replaced in the transmission. This sudden unannounced loss of power to the wheels, could be a potential catastrophic event for the car passengers and other vehicles, trucks and buses, if this were to happen on a highway traveling at 65 MPH, as there may be no way avoid getting in an chain reaction accident with the following traffic moving at highway speeds. This could be especially hazardous in high volume rush hour traffic, at night or under weather impaired conditions (I.e, fog, rain or snow). After a little research, I was made aware that this is not an isolated incident and gm is quite knowledgeable of this waveplate transmission problem, in all models with the same drivetrain platform, but have done little to step up and remedy the problem. If you are out of warranty (5 years or 100,000 miles) you are going to be out several thousands of dollars for the repairs, suffer a great deal of inconvenience and are putting yourself and others on the road at great risk. I hope this will help bring this issue to head, as gm needs to recall and repair this waveplate transmission problem, as it present a serious exposure and liability to injure and harm the traveling public.

Filed Jun 6, 2013 · Transmission · 120,000 miles · NY

Tl* the contact owns a 2007 gmc acadia. The contact stated that the vehicle would hesitate to accelerate and operate sluggishly. The timing chain was replaced by the dealer however, the failure late recurred with the illumination of the check engine warning light. An engine flush was performed on the vehicle and the failure subsided for three weeks before recurring. The vehicle was taken back to the dealer, who advised that there was a seized solenoid in the transmission, which would require replacing. The vehicle was not repaired. The failure mileage was 120,000 and the current mileage was 130,000.

Filed May 11, 2010 · Transmission · 6 miles · MN

Tl*the contact owns a 2007 gmc acadia. While driving at 40 MPH, the contact noticed that the vehicle would not shift gears. Prior to the failure, the contact noticed that the vehicle would hesitate when driving at any speed. The vehicle was towed to an authorized dealership where the clutch plate was replaced. The failure mileage was approximately 6,000. The current mileage was approximately 48,000.

Filed Nov 3, 2007 · Engine · 8,100 miles · 00

My first 2007 awd acadia broke down after owning it for 20 minutes check engine light came on and it wouldn't move. Spent more time in the garage. When I got it back a week later it started to shut off while I was driving it but it only did it when I was stopped and made right turns on main roads. The car would shut off while driving but it would restart again. Got a replacement car had to pay 2,000 more for it and the replacement acadia is doing the same thing. Its a death trap we could get killed pulling on a highway and the car shuts off and when they hook it up to diagnostic machine it says nothing shows up. It has been in for the software upgrades and a week later its shutting off again and has alot of hesitation. I have had it with gmc I just want my money back they lost my trust I should of stayed with my jeep liberty which was a great vehicle with no problems.