Oil Pump Drive O-Ring May Leak Oil on Oldsmobile Cutlass Supreme

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: 113,083 (68,000–150,000)
Engines affected: 3.1L V6, 3.4L V6
6 model years affected: 1991, 1992, 1993, 1994, more1995, 1996
13 people reported this problem
4 people shared problem details
1995 Oldsmobile Cutlass Supreme- 3.1L V675,087
Had an oil leak that was hard to find. Was under back end of intake manifold.Manifold had to be removed to replace "O" ring. Was very expensive.
1 person likes thisFlag inappropiate
1993 Oldsmobile Cutlass Supreme- 3.1L V6150,000
care leaks oil like a siv.
1 person likes thisFlag inappropiate
Ongoing problem, has been repaired once and a second attempt made to fix the first repair , engine leaks more oil now than it did before I started having work done
1991 Oldsmobile Cutlass Supreme- 3.1L V6130,000
Took my car to the shop and had it fixed for a little over $200, but I had some additional work done at the time. It has been running fine with no further leaks.
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