Engine Oil Leak From Valve Cover Gasket on GMC Sonoma

Problem Description and Possible Solution

This engine may leak oil from the valve cover gasket.

Problem Data
RepairPal Verified
Average mileage: 161,500 (132,000–191,000)
Engines affected: 2.2L 4 Cylinder, 2.5L 4 Cylinder, 2.8L V6
5 model years affected: 1991, 1992, 1993, 1998, more2001
6 people reported this problem
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Valve covers leaking oil, aft engine seal leaking oil.