Idle Speed/Throttle Actuator - Electronic: Service and Repair

Removal Procedure
1. Disconnect the negative battery cable.
2. Disconnect the IAC electrical connector.
3. Remove the two screws and IAC valve from the throttle body.

NOTICE: Do not clean the IAC valve by soaking it in solvent. The valve will be damaged as a result.





Cleaning and Inspection Procedure
- Clean the IAC valve 0-ring sealing surface, pintle valve seat and air passage.
- Use carburetor cleaner and a parts cleaning brush to remove carbon deposit. Do not use a cleaner that contain methyl ethyl ketone. This is an extremely strong solvent and not necessary for this type of deposit.
- Shiny spots on the pintle are normal and do not indicate misalignment or a bent pintle shaft.
- Inspect the IAC valve 0-ring for cuts, cracks or distortion. Replace the 0-ring if damaged.





Measurement Procedure
- In order to install a new IAC valve, measure the distance between the tip of the pintle and the mounting flange. If that measurement is 28 mm or less, the valve needs no adjustment. If the measurement is greater than 28 mm, apply finger pressure and retract the valve. The force required to retract the pintle on a new valve will not damage the valve, shaft or pintle.

NOTICE: Do not push or pull on the IAC valve pintle on IAC valve that has been in service. The force required to move the pintle may damage it.

IMPORTANT: Use an identical replacement part in order to replace a valve. IAC valve pintle shape and diameter are designed for the specific application.








Installation Procedure
1. Install IAC valve on the throttle valve body with the two screws. Tighten the screws to 1 Nm (9 lb. in).
2. Connect electrical connector to IAC valve.
3. Connect the negative battery cable.