Where is the iac located on a 1998 Chevy 4.3?

The Idle Air Control (IAC) valve on a 1998 Chevy 4.3L engine is located on the throttle body, which is situated on the intake manifold. It is typically mounted on the side of the throttle body and is connected to the engine's air intake system. To access it, you may need to remove the air intake duct or other components covering the throttle body.