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Problems for specific Pontiac Grand Prix years:

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Repairpal verified 1991 Pontiac Grand Prix problems

 

Verified for the Pontiac Grand Prix

The ignition coil housing may fail causing an engine misfire on one or more cylinders.

2 Reports
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Verified for the Pontiac Grand Prix

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 water pump may develop a coolant leak resulting in an engine overheating condition.

 

20 Reports
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Verified for the Pontiac Grand Prix

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 here»

4 Reports
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Verified for the Pontiac Grand Prix

The engine vacuum hose to the MAP sensor may crack resulting in a vacuum leak causing the engine to run rough and/or stall.

3 Reports
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Verified for the Pontiac Grand Prix

An engine oil leak may develop from the oil pump drive O-ring. This can often be confused with an intake manifold gasket leak. Careful inspection is required to determine the exact cause of the leak. Replacement of the failed 0-ring will commonly correct this concern.

6 Reports
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Verified for the Pontiac Grand Prix

The upper intake manifold gasket and/or a PCV vacuum lines/hoses can develop vacuum leaks with age. This type of leak can result in a higher that normal or rough idle.

11 Reports
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Verified for the Pontiac Grand Prix

The timing chain tensioner and guides are prone to wear and may develop an abnormal noise, requiring replacement.

2 Reports
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Verified for the Pontiac Grand Prix

The fuel pump may fail causing engine to stall and not restart.

33 Reports
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Verified for the Pontiac Grand Prix

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 replaced to correct this concern.

11 Reports
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Verified for the Pontiac Grand Prix

The 2.3L 4 cylinder engine can be prone to head gasket failure. This can result in coolant loss and engine overheating.

2 Reports
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Verified for the Pontiac Grand Prix

Body: A dirty throttle body may cause a lower than normal engine idle resulting in a stalling condition. A stalling condition may also result if an idle learn procedure is not performed if the battery goes dead or is disconnected.

4 Reports
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Verified for the Pontiac Grand Prix

The oxygen sensor can fail causing Check Engine Light illumination and the engine to run rich (burn more fuel than normal).

3 Reports
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Verified for the Pontiac Grand Prix

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

40 Reports
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Verified for the Pontiac Grand Prix
The timing belt may fail prematurely. Our technicians tell us that the belt tensioner and idler pulleys should be replaced when the timing belt is replaced.
6 Reports
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