Starting Air Valve: Service and Repair

Air Boost Valve:

1. Disconnect the vacuum hoses from the Air Boost Valve.
2. Remove mounting bolt from valve.
3. Replace the O-ring at base of valve.
4. Reinstall Air Boost Valve mounting bolt.
5. Reconnect the vacuum hoses.
6. Retest operation refer to, "DIAGNOSIS AND TESTING PROCEDURES".