Fast Idle Valve
NOTE:
The fast idle valve is factory set and should not be disassembled. Check PCV system tubing for breakage, disconnection and clogging. Ensure throttle valves are fully closed.
- With coolant temperature less than 86°F (30°C), start engine. Remove fast idle valve cover. Place finger on valve seat area and ensure there is airflow with engine cold and idling. See Fig 1 . If suction is not felt or heard, replace fast idle valve and retest.
- Warm engine to normal operating temperature (cooling fan comes on). Ensure valve is completely closed. If any suction is heard with fast idle valve cover removed, valve is leaking and must be replaced.