Oil Leaks From Intake and Valve Covers on Buick Riviera

Submitted by Vehicle Owner · May 29, 2025
Published by RepairPal

Problem overview

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

6 people reported this problem
2 comments
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Buick Riviera vehicles with this problem

4 model years affected
Average mileage: 184,120 miles
(138,000 - 230,240)

Repairs related to this problem

Valve Cover Gasket Replacement

The average cost for a Buick Riviera Valve Cover Gasket Replacement repair is between $74 and $106.

Intake Manifold Gasket Replacement

The average cost for a Buick Riviera Intake Manifold Gasket Replacement repair is between $749 and $847.

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