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Home >> Oldsmobile >> 1986 >> Calais Base, 4D Sedan, 3.0 L >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> PCV System - Gasoline >> Service Procedures >> PCV Valve
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PCV Valve

Remove and replace PCV valve every 30,000 miles. DO NOT  attempt to clean valve. Replacement intervals may become shorter under severe service.

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