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

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Positive Crankcase Ventilation: Service and Repair

POSITIVE CRANKCASE VENTILATION (PCV) SYSTEM

Removal and Installation




1. Remove the PCV valve.
1. Disconnect the positive crankcase ventilation (PCV) tube.
2. Disconnect the PCV valve electrical connector.

NOTE: Rotate the PCV valve counterclockwise to remove from the valve cover.

3. Remove the PCV valve.

2. To install, reverse the removal procedure.