Where can I find the idle air control valve in a 2002 Chevy TrailBlazer?

The 2002 Chevy TrailBlazer does not come with a separate idle air control valve, instead, it uses a throttle body actuator to carry out the same function. If your car is stalling due to the AC or you notice rough idling, chances are the culprit is a dirty throttle body. Many owners have successfully cleaned out sludge, debris, and gunk from the throttle body, which has helped restore smooth idling and proper AC performance. The throttle body is an essential part of the vehicle's intake system, responsible for regulating the air entering the engine to achieve the ideal air/fuel ratio for efficient combustion. A dirty throttle body, when stuck closed, can lead to stalling as it hampers the spark. A faulty throttle body operates similarly to a closed one. The cost of professional cleaning for the throttle body typically ranges from $230 to $300.