Oil Pump Drive O-Ring May Leak Oil on 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.

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Average mileage: (–)
Engine affected: 3.4L V6
6 model years affected: 1991, 1992, 1993, 1994, more1995, 1996
6 people reported this problem
0 people shared problem details
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