Idle Air Control Valve (4.3L): Removal
WARNING: This page is about a different car, the 2003 GMC Sierra, 2003 GMC Cab & Chassis Sierra, 2003 Chevrolet Silverado, and 2003 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
- Remove the air cleaner resonator outlet duct. See AIR CLEANER RESONATOR OUTLET DUCT under AIR INDUCTION SYSTEMS.
- Disconnect Idle Air Control (IAC) valve harness connector. IAC valve is located on driver's side of throttle body unit. See Figure. Remove IAC valve mounting screws. Remove IAC valve and "O" ring from throttle body unit.