Fast Idle Air (FIA) Valve
CAUTION:
DO NOT
allow water to contact any other portion of throttle body when immersing fast idle air valve in water.
- For exploded view of throttle body showing fast idle air valve, see appropriate throttle body illustration under FUEL SYSTEM in the REMOVE/INSTALL/OVERHAUL article.
- To check fast idle air valve, turn engine off. Remove valve cap. When coolant temperature is less than 140°F (60°C), valve should be open. When coolant temperature is greater than 158°F (70°C), valve should be closed. Install NEW valve cap gasket when installing valve cap.