Pontiac Grand Prix Repair and Maintenance
A guide to problems, costs, maintenance and repair for your Pontiac Grand Prix
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Pontiac Grand Prix ProblemsErratic Shifting of the Automatic Transmission
The transmission pressure control solenoid may fail causing erratic shifting. Our technicians tell us that partial dis-assembly of the transmission is necessary to replace a failed pressure control solenoid.
The intake manifold gasket may develop and external engine oil or coolant leak. In some cases, an internal coolant leak may occur causing coolant to mix with the engine oil. Our technicians tell us that operating the engine with a coolant/oil mix can result in internal engine damage. Replacing the intake manifold gasket should correct these leaks.
Illumination of the Check Engine Light can be caused by a loose or worn gas cap.
Pontiac Grand Prix QuestionsRefueling my car in the winter, the pump continues to click off as if its full. (1 answer)
2006 Grand Prix GXP V8 5.3L Last winter and again this winter the gas pump clicks off non-stop while fueling my car. It doesn't matter if it's empty or half full. It takes forever to fill my tank in the winter. I have no problems with it in the summer. I have tried pulling the gas...
Someone pulled 4,6 plug wire off without her knowing when it started it was missing bad she held it to the floor. Now it's flooding really bad and white smoke out the tail pipe and smells like raw gas. I change number 1 injection the plugs and oil didn't help getting gas in my oil now
My heat and air only blows out whenever I am driving about 50. Even then it isn't very much air.
Pontiac Grand Prix RecallsEngine Oil Leaks Onto Exhaust Manifold
Engine oil can leak onto the exhaust manifold, causing a fire hazard. This concern was addressed in previous recall notifications, but improvements to the repair have been made. Dealers will make improved repairs free of charge to resolve the concern.
The headlights and daytime running lights may fail to operate. Dealers will replace the headlamp driver module free of charge to resolve the concern.
Excess weight on the key ring can cause the ignition switch to move out of the run position without warning, turning off the engine. This defect can also affect the safe operation of the airbag system. Until this recall is performed, customers should remove all items from their key rings, leaving only the ignition key. The key fob (if applicable), should also be removed from the key ring. Dealers will provide two replacement key rings and key cover on all ignition keys to correct this concern.