Idle Air Control (IAC) Valve: Installation

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.

NOTE: If you are installing a new IAC valve, replace the valve with an identical part. The IAC valve pintle shape and diameter are designed for the specific application.

Measure the distance A between tip of the IAC valve pintle and the mounting flange. If the distance is more than 1.10" (28 mm), use finger pressure in order to slowly retract the pintle. The force required to retract the pintle of a new valve will not cause damage to the valve. Lubricate the IAC valve "O" ring with clean engine oil. Install the IAC valve assembly. Install the engine cover. Reset the IAC valve pintle position. See IAC VALVE RESET PROCEDURE .