Where is the idle air control valve located on a 1991 Chevy s10 2.8l v6 engine?

On a 1991 Chevy S10 with a 2.8L V6 engine, the Idle Air Control (IAC) valve is typically located on the throttle body. It's a small, usually cylindrical, electrically controlled valve mounted directly to the throttle body itself. You'll find the throttle body on the intake manifold, where the air enters the engine.

To be certain, you'll need to either:

* Consult a repair manual specific to your 1991 Chevy S10 2.8L V6: This is the most reliable method. The manual will have diagrams and pinpoint the location.

* Look closely at your throttle body: Once you locate the throttle body, carefully examine it for a small valve with electrical wires connected. It might have a small connector and might be labeled.

Keep in mind that the exact position might vary slightly depending on specific engine and manufacturing variations.