Pontiac Grand Prix shudder problems

Filed Aug 10, 2013 · Transmission · 78,600 miles · NH

The car was about to enter the mass pike when all forward motion stopped. The transmission was in 'drive' but it acted as though it had slipped into neutral. The car was dead in the middle of the road and there were a number a near miss collisions before the emergency vehicle arrived. The car is now at a gm dealership awaiting a transmission rebuild. We bought this car new and have had a number of transmission issues starting at 12,456 miles. Within the first year of ownership we reported a 'clunking' noise to the dealership - they said they could not recreate the problem. We had additional issues where the car would 1) not move when starting from a traffic light or 2) would act as though it was in neutral when coasting and then 'bang' into gear several seconds after stepping on the gas pedal. These issues were reported to the dealer at 33657, 45381, 51284, 56446, 61543 and 72552 miles. In each case, except for the one at 56446 miles the dealer said they could not replicate the issue - but they charged for the time. At 56446 miles we tried another dealership and they spent over an hour testing the car. Finally, they did experience the problem. They replaced several transmission parts but we experienced a shuddering problem less than a year later. They detected a possible torque converter problem at that point but said it the could be driven and no other parts of the transmission would be affected. There is a common issue with the transmission in gm v8 cars - there are many reports of failures and expensive repairs. It appears to be a design issue. The symptoms started early on, and despite our multiple reports of problems and exact adherence to the maintenance schedule there was almost a serious accident.

Filed Jul 22, 2013 · Transmission · 160,508 miles · NJ

My vehicle is experiencing tsb: 06-07-30-023d 4t65e: transmission 1-2 shift shudder at light to moderate acceleration. I called pontiac recall center gave my VIN and was told it was not covered. Eventhough I got this recall after taking my car to a nj inspection center.

Filed Oct 1, 2012 · Transmission · TN

We have a 2006 pontiac grand prix gxp and the transmission started slipping and shuddering. My wife was driving the car to a shop and it just quit and would not go forward or reverse. We had to have the transmission replaced. $3,000 gone. I contacted pontiac customer care and they did not help us in any way. I have read story upon story about transmission failures on this particular vehicle. People have been left stranded and without a vehicle while repairs were done to correct gm's problem that they will not fix! Is there anything anyone can do to at least help reimburse those who have been burnt by gm's lemons? Any help would be greatly appreciated.

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

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

Filed Sep 30, 2011 · Electrical, Engine · OH

Our 2001 pontiac grand prix, which has roughly 125,000 miles on it, stalls and dies at various speeds. It is not supercharged, but it does have the 3.8 liter series ii engine. The vehicle will shudder momentarily and, if the car's going fast enough, the momentum of the torque convert spinning manages to restart the engine in default, allowing it to keep running. However, the tcs "trac off" light comes on and the tachometer drops to 0 until the car is shut off and restarted. Sometimes, the car will stall at low speed and, minus the shudder, everything else occurs as described above, except that the car simply dies. The ses light has lit up a few times, but there is no clear reason for it to do so, since, once restarted, the engine runs just fine. Occasionally, however, idle is a little rough; the engine sometimes drops to almost 400 RPM when sitting with the engine running, then slowly climbs back up to about 600-750 RPM. More alarming personally, however, is the fact that roughly 11 days ago, the car completely died twice on the same day, in a 15-second period. While coming home from work on the freeway, the car completely died (the oil pressure light came on and everything). Having pulled onto the shoulder and restarted, I did not travel more than 100 feet before it happened again, this time on the freeway off-ramp. I restarted again, and it drove home normally. Lately, the car is sometimes next to impossible to start. Depending on the circumstances, one of two things will happen; either the engine will turn over but not run; or the engine will not turn over, and the starter solenoid will simply "click" behind the firewall. The battery was replaced less than a month ago, and no serious electrical faults have occurred since it was replaced, aside from the above problems.

Filed Sep 11, 2011 · Brakes · 12,250 miles · CO

Under hard high speed braking the front brakes shudder badly causing a severe front end shimmy due to warped rotors making stopping difficult. If pressure on pedal is not released this could cause loss of control and a crash. It is worse if going downhill. This is a very common issue on gm cars build in the last 8 years. There are posts all over the internet about this. The problem is with poorly made brake rotors that warp at under 15,000 miles of normal use. I have had the same issue with my wife's 2003 impala. These cars should be recalled and the rotors replaced with parts of adequate quality. If you can get the issue addressed under warranty, the dealer will only either turn the defective rotors or replace them with the same oem junk. The only fix I have found it to replace them with aftermarket rotors and pads.

Filed Jul 16, 2011 · Transmission · 63,000 miles · PA

I have a 2006 pontiac grand prix gxp. I started having transmission problems last december. The car shudders horribly around 50 MPH. Had the car to a few different gm dealerships. One claims they didn't find anything wrong. The other one felt the problem, replaced a solenoid and car continued to do it. At this point they claim there is nothing wrong even though the shudder is still there. Car was under warranty til march. No longer under warranty and is getting worse. I know of over 150 people with w-body v8 gm cars that have experienced trans. Problems. Why hasn't there been a federal investigation???? I guess it may be because of the gm bailout? The federal safety agency, please launch an investigation and a recall!!!!! I guess you'll just wait until it causes more accidents and deaths! Good job morons!! Thanks for looking out for the people!

Filed Jun 19, 2011 · Transmission · 00

Transmission showing signs of failure despite using the best synthetic tranny oil and regular tranny oil changes. The car has only 117 000 kms and slams into gear after a slow start. Also shudders sometimes before a gear locks in. Apparently these are common problems that occur just before complete transmission failure.

Filed Mar 18, 2011 · Transmission · 62,051 miles · FL

2008 pontiac grand prix gxp v8 transmission failure. Car shudders, transmission slips, car shakes at all speeds. Dealer blamed it on tires, tires been replaced and balanced. Have balancing paper work to prove it.

Filed Feb 20, 2011 · Transmission · 36,300 miles · KS

After coming to a complete stop then accelerating the transmission has a 'shudder'. Occurs a few times a month. Nothing had been done to fix the problem. Car only has 36,300 miles on it. Original transmission fluid as well.