Buick Riviera Problems

Oil Leaks From Intake and Valve Covers on Buick Riviera

Problem Description and Possible Solution

The intake manifold and valve cover gaskets can develop external engine oil leaks.

(6 people reported this problem)

Buick Riviera Vehicles With This Problem

RepairPal Fair Price Estimate
RepairPal Verified
Average mileage: 184,120 (138,000–230,240)
4 model years affected: 1990, 1991, 1992, 1993
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Brake problem? Or maybe a faulty head gasket cylinder?
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