Oil Pump Drive O-ring May Leak Oil From Rear of Engine on Pontiac Trans Sport

Problem Description and Possible Solution

An engine oil leak may develop from the rear of the engine. This is commonly caused by a failed oil pump drive o-ring seal. The leaking o-ring should be replaced to correct this concern.

Problem Data
RepairPal Verified
Average mileage: (–)
3 model years affected: 1996, 1997, 1998
4 people reported this problem