3-Way Solenoid Valves
- Disconnect hoses and electrical connector from 3-way solenoid valve. Remove valve from vehicle. Turn valve so that air filter end of valve faces down. Connect hose to port "A". Blow into hose. Ensure air passes from filter. See Fig 1 .
- Using jumper wire, apply battery voltage to solenoid valve. Blow into port "A". Air should pass from port "B". If air does not exit port "B", replace 3-way solenoid valve(s).