Car Problem Reports

GMC Sonoma Distributor Shaft O-Ring Seal May Leak Oil

 
GMC Sonoma Problem
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Model Years Affected: 1991, 1992, 1993, 1994, 1995

Engines Affected: 2.8L V6, 4.3L V6

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An engine oil leak may develop from the distributor shaft o-ring seal.

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  • Visitor, , 2.8L V6, 181,000 mi

    Thought I had a rear main seal leak. Found that oil was weeping out from under the distributor. Put a new O ring seal and a distributor gasket from a 350 and the leak is stopped.

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