Courier L4-2299cc Courier (1982)
to the No. 2 relief valve, Fig. 9. Air should be discharged from the air control valve outlet port.
6. If valve does not operate properly, check vacuum lines and replace air control valve, if necessary.
1980-82 MANUAL TRANSMISSION
Fig. 9A - Air Control Valve Test
Fig. 9B - Air Control Valve Test
1. Start engine and bring to normal operating temperature.
2. Shut engine off, and disconnect air hose from bottom of air control valve, Figs. 9A and 9B.
3. Start engine and run at idle speed.
4. Disconnect vacuum control line from No. 1 relief valve of air control valve. Observe outlet port of air control valve. Air should be discharged.
5. Reconnect vacuum control line to No. 1 relief valve of air control valve. Observe outlet port of air control valve. Air should not be discharged.
6. Disconnect vacuum control line from No. 2 relief valve of air control valve.
7. Disconnect vacuum line from air bypass valve on 2.3 Liter engines, or from the EVAP shutter valve on 2.0 Liter engines. Reconnect this line to the
