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Problems for specific Pontiac Grand Prix years:

Car problem reports

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Most reported 2007 Pontiac Grand Prix problems

 

Verified for the Pontiac Grand Prix

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.

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

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Verified for the Pontiac Grand Prix

Illumination of the Check Engine Light can be caused by a loose or worn gas cap.

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Verified for the Pontiac Grand Prix

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.

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Verified for the Pontiac Grand Prix

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.

 

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Verified for the Pontiac Grand Prix

The intake manifold gasket may develop external engine oil leak. The manifold gasket will need to be replaced to correct this issue.

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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.

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The ignition module or crankshaft position sensor may fail causing the engine to die and not restart. Diagnoses will be necessary to determine if the module or crank sensor is causing the no start condition.

6 Reports
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Verified for the Pontiac Grand Prix
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.
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