Car Problem Reports

Chevrolet Lumina Oil Pump Drive O-Ring May Leak Oil

 
Chevrolet Lumina Problem
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Model Years Affected: 1991, 1992, 1993, 1994, 1995, 1996, 1997

Engines Affected: 3.1L V6, 3.4L V6

Average Mileage: 123,500 mi (86,000 mi - 150,000 mi)

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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.

  • Visitor, , 3.1L V6, 86,000 mi

    Thought at first it was the intake end gasket but actually it was the oil pump drive o-ring. Was able to pull up the drive shaft enough to clean and get some ultra copper gasket maker on the bottom of the shoulder of the shaft.

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  • Visitor, , 3.1L V6, 150,000 mi

    oil leaking from the o ring

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