Solenoid Relief Valve

Solenoid Switching Valve:

1. Disconnect the vacuum hoses from the solenoid valve.
2. Blow through the solenoid valve from port "A". Check that air passes through the valve and flows from port "B".
3. Disconnect the solenoid valve connector and connect 12V and a ground to the terminals of the solenoid valve.
4. Blow through the solenoid valve from port "A". Check that air passes through the solenoid valve and flows from the air filter.
5. If not as specified, replace the solenoid valve.