Relief Solenoid Valve
- Disconnect vacuum sensing tubes from relief solenoid valve and vacuum pipe. Blow through solenoid valve from vacuum sensing tube (top hose). Air should pass through valve and come out side fitting.
- Disconnect coupler from relief solenoid valve and connect battery power to terminals on valve. Blow through valve from vacuum sensing tube (top hose). Air should pass through solenoid valve and come out air filter of valve. If valve does not respond as described, replace it.