2007 Pontiac Grand Prix: transmission slipping

Filed Jun 13, 2016 · Acceleration · 104,000 miles · GA

My transmission/ transaxle has been rebuilt 3 times. What I have researched at this time is that the base model 4t65e transaxle doesn't really differ in the hard parts for the 4t65e-hd thats in my pontiac grand prix gxp. Bad jerking and slipping from take off or accelerating is my problem. Just this year my car couldn't accelerate over 40mph because of this problem. Anyone I talk to who has the same motor combination of the ls4 motor with the 4t65e-hd tranaxle has been dealing with the same similar issues. Wether it be the impala ss 2006-2009, monte carlo ss 2006-2007, buick lacrosse super 2008-2009, or the pontiac grand prix gxp 2005-2008. The front wheel drive combination with the power in the 303 hp motor is too much for the 4t65e-hp transmission. I've found a website that claims they have solved the flaws with this problem. The website explains in detail what parts they use and how it can support the power of the ls4 motor. Personally I feel like I should not pay for something that should've been a recall close to a decade ago.

Filed Feb 6, 2016 · Driver assistance, Electrical · FL

The transmission slip I get a oil change within a month or two months of the oil change I need another one it's getting more snow on the floor on the passenger side I have to keep the air condition on keep the car running hot what is the reason.

Filed Mar 5, 2013 · Transmission · 72,200 miles · CT

Another gxp transmission issue... There seems to be a very high number of issues w/the gxp transmissions considering how few they sell since it's the top of the line version w/the v8 engine. Seems like they tried to use the transmission from the lower models w/the v6 engines & it's not holding up to the engine power. When is there finally going to be a recall for the design issue/poor quality? I had the dealership service the transmission at ~50k miles as preventative maintenance & it was running fine at the time. I don't spend a lot of time at high speeds on the highway & don't drive it hard, but the transmission failed after ~72,200 miles. Early feb 2013, the transmission started slipping for a fraction of a second ~3rd to 4th. Brought it to the dealership, but the technician did not notice anything unusual during the test drive & said to bring it back if it got worse. On 2/26/13 I drove it back to the dealership because the transmission slipping was getting worse & it also started making a noise. The night I dropped it off, the service rep watched me put it in reverse & drive to move the car, but it wasn't making any noise or slipping at that time. I agreed to leave it overnight so they could see if it made noise when it was cold in the morning. The next day, he called me to say the transmission doesn't work at all anymore & needs to be replaced at a cost of $3,349. Fortunately it didn't fail as I was pulling out on the busy crossroads & take on my way to work or it could've been a serious problem.

Filed Mar 5, 2013 · Transmission · 59,000 miles · IN

Tl* the contact owns a 2007 pontiac grand prix. The contact stated that while driving approximately 65 MPH, the transmission began to slip and the vehicle exhibited an abnormal jerking motion without warning. The vehicle was taken to the dealer where the contact was advised that the repairs needed to correct the failure could not be determined. The manufacturer was made aware of the failure. The vehicle was not repaired. The approximate failure and current mileage was 59,000.

Filed Feb 18, 2013 · Transmission · 95,000 miles · AL

I was on my way to work when my car just stopped moving. I was barely able to get off of the road without being hit by the car behind me. I had it towed to the chevrolet dealership. The car was still under warranty so the transmission was replaced. However, less than 10,000 miles later the 'new' transmission is slipping badly. I can't afford the $2800 plus labor to have the transmission replaced again so I guess I will just have to hope that I don't get ran over when the transmission goes out again. After researching this car I have found that transmission failure is common. Why is this not considered a danger not only to the people in the car but to the other people on the road that the car could stall in front of?

Filed Dec 3, 2012 · Transmission · 66,000 miles · MI

Tl* the contact owns a 2007 pontiac grand prix. The contact was driving approximately 40 MPH and approaching a traffic stop signal when during braking, the transmission began to slip. As a result, the vehicle exhibited an abnormal jerking motion. The failure recurred five times. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the problem. The approximate failure mileage was 66,000.

Filed Aug 14, 2012 · Transmission · 92,000 miles · WI

Car transmission slips while taking off from a stop. It clunks and lurches forward unsafely. Vehicle transmission has been flushed and fluids changed. Seems to be getting worse. Does not matter if hot or cold. Does it 3 out of 5 times.

Filed Apr 16, 2012 · Transmission · 96,000 miles · MD

2007 pontiac grand prix gxp transmission failure at 96,000 miles (and 6 months out of warranty). Stopped at traffic light when I pressed the accelerator to go and heard a "clunk" and had no forward gears in automatic. Did have tapshift gears and reverse, though forward gears slipped. Took it to a local dealer (we were out of town) and told the transmission had failed. Had to have the transmission rebuilt at a cost of $3600. Plus car rental and hotel to drive home and return to pick up the car when it was repaired. Second gm transmission failure I've experience in less than two years with the previous one on a chevrolet trailblazer.

Filed Jan 7, 2012 · Transmission · 77,000 miles · MI

Automatic transmission failure. Transmission shudders, slips and slams into gear. Gxp model.

Filed Aug 20, 2011 · Transmission · 55,000 miles · MI

I am experiencing intermittent transmission slipping as well as malfunctioning from a start.

Filed Feb 20, 2011 · Transmission · 135,000 miles · MI

2007 grand prix gxp car kept triggering engine light and turned out to be codes p0700 and p0843. 135k transmission was rebuilt because reverse had gone. Now @ 193k trans is back to the codes and now slipping. I've had my 99 grand prix gtp for 8 years and never had to dump a trans into it or motor into it and its at 176k miles running hard. The trans for this vehicle needs to be redone.