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).

Fig 1: Removing/Installing IAC Valve "O" Ring

Courtesy of GENERAL MOTORS CORP.

Install the new O-ring to the IAC valve.

Fig 2: Removing/Installing IAC Valve

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Install the IAC valve into the throttle body.

Fig 3: Removing/Installing IAC Valve Attaching Screws

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Install the IAC valve attaching screws.
Tighten: Tighten the screws to 3 N.m (27 lb in).

Fig 4: View Of IAC Valve Electrical Connector

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Connect the electrical connector to the IAC valve.
The powertrain control module (PCM) will reset the IAC valve whenever the ignition switch is turned ON, then OFF.
Turn the ignition switch ON, then OFF.
Start the engine and allow the engine to reach a normal operating temperature.

Fig 5: Removing/Replacing Fuel Injector Sight Shield & Fuel Pressure Connection Cap

Courtesy of GENERAL MOTORS CORP.

Install the fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement (L36) in Engine Mechanical.