Problems for specific Pontiac Grand Prix GTP years:

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Most reported 2005 Pontiac Grand Prix GTP problems

 

Verified for the Pontiac Grand Prix GTP

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 with a coolant/oil mix may result in engine damage. Replacing the intake manifold gasket should correct this issue.

31 Reports
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Verified for the Pontiac Grand Prix GTP

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.

21 Reports
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Verified for the Pontiac Grand Prix GTP

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.

20 Reports
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Verified for the Pontiac Grand Prix GTP

The serpentine belt tensioner pulley may wear out. Our technicians tell us that in order to get a new pulley from General Motors you must purchase a complete belt tensioner assembly.

14 Reports
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Verified for the Pontiac Grand Prix GTP

The high pressure power steering hose will commonly leak fluid; it should be replaced.

9 Reports
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Verified for the Pontiac Grand Prix GTP
The supercharger may develop a noise in the front section of the supercharger assembly. The is due to a worn coupler. Our technicians tell us that a remanufactured coupler section is available from aftermarket suppliers.
6 Reports
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Verified for the Pontiac Grand Prix GTP

A Loose or worn gas cap may cause Check Engine Light to illuminate.

4 Reports
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Verified for the Pontiac Grand Prix GTP

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 is for this condition.

2 Reports
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