Chevrolet Repair Questions? Ask a Mechanic for Answers ASAP
Hello, my name is***** idle speed actuator opens up allowing increased airflow during engine load conditions such as using AC so it does sound like the idle air control actuator has probably failed. Start by cleaning actuator and throttle body with cleaner from parts store and a rag. If that doesn't help then replace the idle air control solenoid. Here are replacement instructions, let me know if there is anything else I can do to help. Thanks.
I'm assuming you cleaned out throttle body too? Thanks.