To find it, you'll likely need to:
1. Locate the air intake tube: This is the tube that carries air from the air filter box to the throttle body.
2. Look for a sensor with a single wire connector: The IAT sensor is usually a small, cylindrical sensor with a single wire connector attached. It might be mounted directly to the air intake tube or to a bracket nearby.
3. Consult a repair manual or online diagrams: A repair manual specific to your year and engine will show you the precise location of the sensor. Online resources with diagrams for your specific S10 model can also be helpful. Searching for "2000 Chevy S10 IAT sensor location [your engine size]" should yield some relevant results.
Caution: Before attempting any work on your vehicle, disconnect the negative battery terminal to avoid electrical shorts.