Chevrolet Lumina Problem Report

Chevrolet Lumina Oil Pump Drive O-Ring May Leak Oil

(11 reports)

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.

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. -
oil leaking from the o ring -
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