Thermal Vacuum Valve: Impulse
Disconnect hoses from opposite side of valve. Blow through hoses connected to valve. Ensure no continuity exists between hoses when engine is cold and valve opens when engine is warmed to 122°F (50°C).
Disconnect hoses from opposite side of valve. Blow through hoses connected to valve. Ensure no continuity exists between hoses when engine is cold and valve opens when engine is warmed to 122°F (50°C).