Idle Speed/Throttle Actuator - Electronic: Service and Repair

IDLE AIR CONTROL (IAC) VALVE REPLACEMENT

REMOVAL PROCEDURE




1. Remove the fuel injector sight shield.




2. Remove the idle air control valve electrical connector from the idle air control valve.




3. Remove the two idle air control valve attaching screws.




4. Remove the idle air control valve from the throttle body.




5. Remove the idle air control valve O-ring from the idle air control valve.
6. Inspect the idle air control valve O-ring for cracks or damage. Replace the idle air control valve O-ring if necessary.

INSTALLATION PROCEDURE

NOTE: The IAC valve may be damaged if installed with the cone (pintle) extended more than 28 mm (1-1/8 in). Measure the distance that the valve is extended before installing a new valve. The distance from the idle air control valve motor housing to the end of the idle air control valve pintle should be less than 28 mm (1-1/8 in). Manually compress the pintle until the extension is less than 28 mm (1-1/8 in).




1. Install the new idle air control valve O-ring to the idle air control valve.




2. Install the idle air control valve into the throttle body.




3. Install the idle air control valve attaching screws.

NOTE: Refer to Fastener Notice in Service Precautions.

Tighten the bolts to 3 N.m (27 lb in).




4. Install the idle air control valve electrical connector to the idle air control valve.
5. The powertrain control module (PCM) will reset the idle air control valve whenever the ignition is turned ON, then OFF.Turn the ignition ON, then OFF.
6. Start the engine and allow the engine to reach operating temperature.




7. Install the fuel injector sight shield.