Toyota RAV4 Problem Report

Toyota RAV4 Improperly Adjusted Valves May Cause Emissions Failure/Rough Idle

(2 reports)

A rough idle and even an emissions inspection failure for high HC and CO can be caused by improperly adjusted valves. Also, exhaust valves may become to tight which can lead to valve failures. Our technicians tell us that regular valve adjustment inspections are a must.

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