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Pontiac Grand Prix GTP Problems

Find the most common issues based on Pontiac Grand Prix GTP owner complaints.
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Most Common Pontiac Grand Prix GTP 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. Running the engine wit...
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.
The fuel pump may fail causing engine to stall and not restart.
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0 Known Pontiac Grand Prix GTP Brakes Problems

3 Known Pontiac Grand Prix GTP Drive Train Problems

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 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...
An automatic transmission fluid leak may develop from the rubber section of a transmission cooler line. In some cases the rubber section of hose can be replaced. In others, the complete cooler line...

3 Known Pontiac Grand Prix GTP Electrical & Lights Problems

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.
The battery may leak acid at the battery cable connections. As a result corrosion may form on the battery cable ends. Leaking batteries should be replaced and the cables need to be thoroughly clean...

9 Known Pontiac Grand Prix GTP 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. Running the engine wit...
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.
The fuel pump may fail causing engine to stall and not restart.

4 Known Pontiac Grand Prix GTP Exhaust & Emissions Problems

The crankshaft position sensor, ignition module, and/or powertrain control module (PCM) may fail resulting in illumination of the Check Engine Light with ignition system related fault codes stored ...
A Loose or worn gas cap may cause Check Engine Light to illuminate.
The 2004-2005 Pontiac Grand Prix GTP is known to have issues with the EVAP system, a part of your emission control system. The EVAP canister vent valve or valve solenoid wiring may fail causing il...

1 Known Pontiac Grand Prix GTP Heating & Air Conditioning Problem

Extended life coolant may become contaminated and require cooling system service before the recommended 100,000 miles.

1 Known Pontiac Grand Prix GTP Maintenance Problem

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

0 Known Pontiac Grand Prix GTP Miscellaneous Problems

3 Known Pontiac Grand Prix GTP 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 GTP Problems & Complaints

The EGR tube may develop an engine vacuum leak causing the Check Engine (SES) light to illuminate.
A Loose or worn gas cap may cause Check Engine Light to illuminate.
An automatic transmission fluid leak may develop from the rubber section of a transmission cooler line. In some cases the rubber section of hose can be replaced. In others, the complete cooler line...
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 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 high pressure power steering hose will commonly leak fluid; it should be replaced.
Extended life coolant may become contaminated and require cooling system service before the recommended 100,000 miles.
One or more of the power windows may stop working due to a failed window switch. Failed switches will require replacement.
The intake manifold gasket may develop external engine oil leak. The manifold gasket will need to be replaced to correct this issue. RepairPal cannot confirm a recall for this concern on these models.
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