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

System Check

1. Remove the ventilation hose from the rocker cover.
2. With the engine idling, put finger on the open end of the ventilation hose and check for negative pressure (vacuum) with finger.

NOTE: At this time, the plunger in the PCV valve should move back and forth as the open end is covered and uncovered.

3. If negative pressure is not felt, clean or replace the PCV valve. Inspect the vacuum supply hose and vacuum supply hose port for restriction or plugged condition.