Pontiac Grand Prix hesitation problems

Filed Nov 5, 2026 · Electrical, Engine · CA

I took my 2002 Pontiac to Thompson Chevrolet, located in Patterson, CA., for a recall that was not needed since the engine was rebuilt. My car had no issues and was operating just as it was when first bought. It was running excellent. On March 20, 2025, after I got my car back I noticed my gas gauge going up rapidly and not reading accurately. My car was also not accelerating as it was before but hesitates and jumps as it changes gears. It also has a small oil leak since I got it back. I complained to them and have reported this to the Better Business Bureau and have gotten no positive results. My car can pass a smog test, but, it has an oil leak, the gas gauge is not working since they worked on it and it hesitates upon acceleration. All since March 20th, 2025. Can you help me with this problem regarding the authorized dealership.

Filed May 26, 2020 · Acceleration, Brakes · 208,000 miles · MI

Engine power reduced warning light came on and car has minimal acceleration not allowing to go over 40 MPH. Antilock break and traction control lights both on. Breaking issue when this happens causing breaks to hesitate. All issues listed happen while in motion on city street & highway, while going straight & turning and when breaking.

Filed Sep 13, 2017 · Acceleration, Engine · 136,000 miles · KY

Tl* the contact owns a 2003 pontiac grand prix. While driving over 55 MPH, the accelerator pedal would erroneously depress, causing the speed to increase. The contact stated that the vehicle did not have a cruse control option. The contact also indicated that the engine hesitated when idling. The cause of the failures was not diagnosed. The vehicle was not repaired. The manufacturer was not notified. The contact notified carmart in radcliffe, ky of the failure. The failure mileage was 136,000.

Filed May 15, 2015 · Brakes, Electrical · 153,657 miles · TX

R reading some of the complaints that have been submitted, I don't know where to begin or if I have enough characters to express my frustration with my 2006 pontiac grand prix gt supercharged. My recent issue is that the car keeps cutting out and stalling.I took the car to the dealer and spent $110 on a diagnostic after 4 other local mechanics could not duplicate the issue or pinpoint the problem. The result from the dealer's diagnostic was: p0300 multiple misfires; needs 3 coils and ignition module replaced $1090 installed; also has a bearing going out in the super charger and there is a harsh 1-2 shift. I just spent about $1000 getting fuel pump, back wheel bearings, right brake hose, and valve cover gaskets replaced. Rack and pinion had to be tightened although it was replaced twice last year (bad part the first time). I have had power steering pump replaced, water pump replaced, air intake tube/valve replaced. Paid dealer for diagnostic because no codes or indicator lights were on and 4 different mechanics couldn't pinpoint issue. Dealer stated they have up-to-date equipment and code p0300 came up. Car intermittently hesitates to start. Car acts hesitant after car starts after hesitating to start. Interior seats and dashboard has cracked. Abs/traction seems to be failing, car still moves after applying foot on break...slides a little, no immediate stop, even after I have had complete brake work performed (wheel bearings, pads, rotors, hubs, etc.). Supercharge switch has been replaced and elbow tube off the motor block (think that is correct, it's an l-shaped small tube). A lot of repairs have been made. The car runs smoothly when necessary repairs are made. Hate to get rid of the car with all the money and care that has been placed into the car. I am not in a postion to purchase a new vehicle but with the miles I don't want to put extensive $. Gm won't assist.

Filed Nov 21, 2014 · Engine, Transmission · 80,000 miles · KS

When I would come to a stop and hit the gas to take off the car hesitate to go rpms going up but the car would act like it was not in gear. Then a jerk would occur and the car would take off making it scary to pull out into traffic. It took many times going to the dealer before they repaired it, it was linkage in the transmission, it was wore out. 5 years later it is doing the same thing.

Filed Nov 12, 2014 · Acceleration, Transmission · 130,399 miles · MI

On more than one occasion, my car hesitated after stopping at an red light. Upon take off while other cars are behind me if feels like my car gears are stuck . I initially thought perhaps it was the weather or maybe my brakes . No, not the problem because my brakes have been checked and the weather is not always a culprit, I even have new tires . The problem is very scary when your grandchildren are buckle up in the back seat and your car hesitate, transmission slipping not changing gears. This has happened far to many times for my comfort and safety of myself and my family. Additionally, there also been times when the fan stop during this time. Both in the summer with the air blowing and just today (11/12/14), with the heat blowing everything stopped intermittently, what is going on with this car! The problem has only gotten increasingly worst.

Filed Oct 17, 2014 · Electrical, Transmission · FL

Tl* the contact owns a 2008 pontiac grand prix. While traveling approximately 45 MPH, the vehicle jerked violently and decelerated. Also, upon turning the key in the ignition, the vehicle hesitated and stalled multiple times. The vehicle was included in the federal safety agency campaign number: 14v400000 (electrical system). The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure. The failure mileage was unavailable.

Filed Jun 3, 2014 · Fuel system · 73,000 miles · NV

Tl *the contact owns a 2000 pontiac grand prix. The contact stated that while driving at various speeds, the vehicle would hesitate and fuel fumes were emitted into the vehicle. The vehicle was taken to an independent mechanic. The technician diagnosed that the fuel injector seals were leaking and needed to be replaced. The manufacturer was made aware of the failure. The vehicle was not repaired. The failure and current mileage was 73,000. Updated 09/05/14*lj the consumer stated the vehicle was repaired. The owner assumed all costs. Updated 09/10/2014

Filed Apr 2, 2014 · Engine · 125,000 miles · TX

This happen several times driving on freeway 60-70 MPH an engine loss power warning light vehicle. Vehicle started to hesitate will not accelerate over 10-20 MPH. Stalled on the emergency lane. After sitting around 10 mins vehicle started again back and warning light turned off. Arrived at dealership no codes. I cannot afford another vehicle can somebody assist me before I get into an accident with my kids...updated 06/09/14 *bf updated 06/10/2014 *js

Filed Feb 23, 2013 · Acceleration, Brakes · 23,000 miles · OH

Bought this vehicle pre certified with warranty with 22000 miles. Within 4 months the power steering line breaks replaced under warranty. Brake sensor replaced under warranty front left tie rod replaced under warranty. These are problems that occurred within a 9 month timespan. During this time you could press on the gas and the vehicle would hesitate/stall/shake and times lunge forward as you try to ease forward. This occurred the entire time I had the vehicle and they were unable to duplicate the problem when it was under the warranty. Driving home the stability/traction control sensor lights came on,them reduced engine power came on and the car would not drive over 15 miles. Now at 34000 miles and a indicator light showing they figured it was the sensor on the gas pedal ($360). Oh forgot to mention dealership also stated during that warranty timeframe unless something breaks or a indicator light comes on there is nothing they can do. After that they found I also need a front right outer tie rod ($285). Contacted gm because I think they should have paid for the gas pedal. To make a long short short it's being evaluated and since I didn't want to leave my car there another night or perhaps over the weekend until they confirmed with the sales manager reimbursement may not be possible. *tr ## VIN failed ##