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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Evaporative Emissions System: Testing and Inspection

PURGE CONTROL VALVE
1. Start engine and allow coolant to reach 176-194°F. Shut engine off.
2. Disconnect purge hose from air cleaner and blow into hose. Resistance should be present in hose.
3. Start engine and increase engine speed to approximately 1750 RPM, then blow into purge hose. The purge valve should be fully open. If not, check for clogged or defective vacuum hose or thermo valve. Replace, if necessary.