Idle Speed/Throttle Actuator - Electronic: Service and Repair

Removal Procedure
1. Remove the IAC valve electrical connector.
2. Remove the IAC valve attaching screws (1).

NOTE: If the IAC valve has been in service: DO NOT push or pull on the IAC valve pintle. The force required to move the pin tie may damage the threads on the worm drive. Also, DO NOT soak the IAC valve in any liquid cleaner or solvent, as damage may result.

3. Remove the IAC valve assembly (2)
- Clean IAC valve O-ring sealing surface, pintle valve seat, and air passage.
- The IAC valve may be cleaned, use a shop towel or parts cleaning brush to remove heavy deposits.
- Shiny spots on the pintle or seat are normal, and do not indicate misalignment or a bent pintle shaft.
- Whenever the air passage has heavy deposits, remove throttle body for complete cleaning.
- Inspect IAC valve O-ring for cuts, cracks, or distortion. Replace if damaged.
- Whenever installing a new IAC valve, be sure to replace it with an identical part. IAC valve pintle shape and diameter are designed for the specific application.




Measurement Procedure
This procedure is only for installing a new IAC Valve

IMPORTANT: If installing a new IAC valve, replace the IAC valve with an identical part. The IAC valve pin tie shape and diameter are designed for the specific application.

Measure the distance between tip of IAC valve pintle and mounting flange.

If more than 28 mm, use finger pressure to slowly retract the pintle. The force required to retract the pintle of a new valve will not cause damage to the valve.




Installation Procedure
1. Lubricate IAC valve O-ring (3) with clean engine oil.
2. Install the IAC valve assembly (2).

NOTE: Refer to Fastener Note in Service Precautions.

3. Install the IAC valve attaching screws (1).

Tighten
Tighten the IAC valve attaching screws to 3.0 N.m (27 lb in).

4. Install the electrical connector.
5. To reset the IAC valve pintle position:
1. Turn ON the ignition leaving the engine OFF.
2. Turn OFF the ignition for ten seconds.
3. Start the engine and check for proper idle operation.