Idle Air Control (IAC) Valve: Removal
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2002 GMC Savana Special, 2002 GMC Savana Camper Special, 2002 GMC Savana, 2002 Chevrolet RV Cutaway, and 2002 Chevrolet Cutaway. However, it is still accessible from the selected car via links, so may be relevant.
Turn ignition OFF. Remove the engine cover. See ENGINE COVER . Disconnect the harness connector from the Idle Air Control (IAC) valve. Remove the IAC valve attaching fasteners. Remove the IAC valve assembly. Remove the "O" ring.