Purge Valve
- Disconnect black plastic hose at canister.
- Start engine and run at idle, with finger on end of hose. No vacuum should be felt.
- Increase engine speed to 2000 RPM. Vacuum should increase as speed increases.
- If there is no vacuum, check all canister hose connections and hoses for proper condition (blow out hoses with air if necessary).
- Disconnect purge hose at throttle housing and repeat check. If vacuum is felt here, replace purge valve.