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

Canister Purge Control Valve: Testing and Inspection

Fig. 38 Testing purge control valve:







1. Disconnect and plug hose (C), Fig. 38, then attach a suitable hose to port (D) and blow into valve. Air should not flow from valve.
2. Start engine, run at 1500 RPM, and blow into port (D) as previously described. Air should now flow through purge valve.
3. If air does not flow through valve, replace valve and canister assembly.