Thermal Vacuum Valve
Remove thermal vacuum valve from engine and place sensing portion in water, 115-129°F (46-54°C). Blow through hoses connected to valve. Air should pass through. If not, replace valve.
Remove thermal vacuum valve from engine and place sensing portion in water, 115-129°F (46-54°C). Blow through hoses connected to valve. Air should pass through. If not, replace valve.