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pcv valve

  1. DIY: Change your PCV Valve

    DIY Forum
    K, so I know this is a SIMPLE process, but figured it could help someone who doesn't know what to do! Changing a bad PCV valve will help you car run cleaner and help with gas mileage! First here is info on the PCV VALVE. The Positive Crankcase Ventilation valve(PCV valve), is a one-way valve...
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