Idle Speed/Throttle Actuator - Electronic: Service and Repair

REMOVAL PROCEDURE




1. Turn OFF the ignition.
2. Remove the fuel injector sight shield.




3. Remove the electrical connector (4) from the idle air control (IAC) valve (1).




4. Remove the EGR valve.
5. Remove the IAC valve attaching screws (3) from the IAC valve (2).
6. Remove the IAC valve (2) from the throttle body.
7. Remove the O-ring from the IAC valve.

INSTALLATION PROCEDURE

NOTE: The IAC valve may be damaged it 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 compressing the pintle until the extension is less than 28 mm (1-1/8 in).




1. Install the new idle air control O-ring on the valve.
2. Install the IAC valve (2) into the throttle body.

NOTE: Refer to Fastener Notice in Service Precautions.

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

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





4. Connect the electrical connector (4) to the IAC valve (1).
5. Install the EGR valve.

IMPORTANT: The PCM will reset the IAC valve whenever the ignition switch is turned ON, then OFF.

6. Turn ON the ignition and then OFF.
7. Start the engine and allow the engine to reach a normal operating temperature.




8. Install the fuel injector sight shield.