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)

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System Inspection

Swirl Control Valve Actuator At Idle:







1. Warm engine to operating temperature and run at idle.
2. Check that rod is pulled into the swirl control valve actuator at idle.
3. Gradually increase engine speed and check that rod extends above approximately 4000 rpm.