Where is the location of the iac valve on a 2003 silverado?

The Idle Air Control (IAC) valve on a 2003 Chevrolet Silverado is typically located on the throttle body, which is situated near the intake manifold. It is mounted to the throttle body housing and has an electrical connector and a small passage for airflow. To access it, you may need to remove the air intake duct and possibly other components for better visibility.