Check Engine Light Due to Gas Cap Issue on Buick Riviera

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

Problem overview

A loose or worn gas cap may cause check engine light to illuminate.

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

Average mileage: 111,939 miles
(59,817 - 150,000)

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