Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

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Positive Crankcase Ventilation: Service and Repair

PCV Valve Replacement




1. Disconnect hose from PCV valve.
2. Remove PCV valve from cylinder head cover.
3. Install new PCV valve to cylinder head cover.
4. Connect hose to PCV valve and clamp it securely.