Engine Oil Leak From Valve Cover Gasket on GMC Sonoma

This engine may leak oil from the valve cover gasket.

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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
1 person shared problem details
1991 GMC Sonoma- 2.8L V6132,000
Valve covers leaking oil, aft engine seal leaking oil.
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