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Pontiac Grand Prix Problems

Find the most common issues based on Pontiac Grand Prix owner complaints.
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Most Common Pontiac Grand Prix Problems

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 contr...
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 ...
Illumination of the Check Engine Light can be caused by a loose or worn gas cap.
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2 Known Pontiac Grand Prix Brakes Problems

The anti-lock brake (ABS) accumulator may fail causing loss of power brake assist. (The brake pedal will become very hard.)
The ABS master cylinder assembly may fail internally causing the ABS light to illuminate.

3 Known Pontiac Grand Prix Drive Train Problems

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 contr...
You may be able to prevent transmission problems by servicing the transmission and inspecting the fluid every 30,000 miles. If the fluid is dark or burned then the transmission system should be com...
The rubber section of an automatic transmission cooler line may develop a fluid leak . In some cases the leaking section of hose can be replaced. In others, the complete cooler line must be r...

5 Known Pontiac Grand Prix Electrical & Lights Problems

One or more power windows may stop working due to a failed window motor or switch. Proper diagnoses will be necessary to determine the exact cause.
The automatic transmission shifter may fail, or a wire may break near the shifter causing the ignition key to become stuck in the ignition lock cylinder.
One or more of the power windows may stop working due to a failed window switch. Failed switches will require replacement.

23 Known Pontiac Grand Prix Engine Problems

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 ...
The fuel pump may fail causing engine to stall and not restart.
The mass air flow or crankshaft position sensor may fail causing the engine to intermittently stall. It may be necessary for the engine to cool down before it will restart.

7 Known Pontiac Grand Prix Exhaust & Emissions Problems

Illumination of the Check Engine Light can be caused by a loose or worn gas cap.
The catalytic converter may become plugged resulting in loss of engine power. General Motors has extended the catalytic convertor warranty on some models to 10 years or 120,000 miles. Please cont...
The Engine Control Module (ECM) can fail causing stalling, and engine and transmission drivability concerns.

4 Known Pontiac Grand Prix Heating & Air Conditioning Problems

Extended life coolant may become contaminated and require cooling system service before the recommended 100,000 miles.
Air flow from the dash vents may be incorrect due to a damaged engine vacuum hose near the battery tray.
Our technicians highly recommend that the engine coolant be replaced every 30,000 miles.

2 Known Pontiac Grand Prix Maintenance Problems

Contaminated brake fluid can cause problems in the brake system and it should be flushed every 60,000 miles.
Brake fluid can become dirty and may cause problems in the brake system; it should be flushed every 60,000 miles.

0 Known Pontiac Grand Prix Miscellaneous Problems

4 Known Pontiac Grand Prix Suspension & Steering Problems

The high pressure power steering hose will commonly leak fluid; it should be replaced.
The steering may develop a clunk type noise from the upper intermediate steering shaft. Our technicians tell us that you should check with your local GM dealer to find out what the latest repair i...
The front struts may show signs of wear, or be excessively bouncy ride at freeway speeds. This may begin to occur at around 75,000 miles.

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Known Pontiac Grand Prix Problems & Complaints

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 contr...
Illumination of the Check Engine Light can be caused by a loose or worn gas cap.
One or more power windows may stop working due to a failed window motor or switch. Proper diagnoses will be necessary to determine the exact cause.
The high pressure power steering hose will commonly leak fluid; it should be replaced.
The Engine Control Module (ECM) can fail causing stalling, and engine and transmission drivability concerns.
A stalling issue may occur if the battery goes dead or is disconnected and the "idle learn" procedure is not performed. For more information on "relearning" the engine idle speed, please click he...
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 ...
The catalytic converter may become plugged resulting in loss of engine power. General Motors has extended the catalytic convertor warranty on some models to 10 years or 120,000 miles. Please cont...
The fuel pump may fail causing engine to stall and not restart.
The automatic transmission shifter may fail, or a wire may break near the shifter causing the ignition key to become stuck in the ignition lock cylinder.
The anti-lock brake (ABS) accumulator may fail causing loss of power brake assist. (The brake pedal will become very hard.)
The water pump may develop a coolant leak resulting in an engine overheating condition.
Fuel injectors can short-circuit electrically causing a rougher than normal idle and reduced performance.
An engine oil leak may develop from the rear of the engine. This is commonly caused by a failed oil pump drive o-ring seal. The leaking o-ring should be replaced to correct this concern.
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