Why does 2002 Chevy Trailblazer want to die when turning on AC?

Asked by Guru9P3D5H Jul 11, 2022 at 09:20 AM about the 2002 Chevrolet Trailblazer LS RWD

Question type: Maintenance & Repair

3 Answers
40,395

beatupchevy answered 2 years ago

There may be a solenoid that kicks up the idle and it's not working . Maybe .

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158,775

James answered 2 years ago

Sounds like the IAC (Idle Air Control) valve is not working properly. When you switch on the air conditioning an A/C request signal is sent to the computer. The computer then increases the idle slightly to compensate for the added load of the air conditioning compressor by slightly opening up the IAC. Hope that helps! Jim

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