Installation Procedure

Fig 1: Installing IAC Valve O-Ring

Courtesy of GENERAL MOTORS CORP.

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).

Install the new idle air control O-ring.

Fig 2: View Of IAC Valve

Courtesy of GENERAL MOTORS CORP.

Install the idle air control valve into the throttle body.

Fig 3: Installing IAC Valve Screws

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NOTE: Refer to Fastener Notice in Cautions and Notices.

Reinstall the idle air control valve attaching screws.
Tighten: Tighten the screws to 3.0 N.m (27 lb in).

Fig 4: View Of IAC Valve Electrical Connector

Courtesy of GENERAL MOTORS CORP.

Connect the IAC electrical connector.
Install the canister purge solenoid valve. Refer to Evaporative Emission (EVAP) Canister Purge Solenoid Valve Replacement .
Install the throttle control cable bracket. Refer to Accelerator Controls Cable Bracket Replacement .
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.
Start the engine and allow the engine to reach operating temperature.