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Ask GM Tech (Cam) Your Own Question
GM Tech (Cam)
GM Tech (Cam), Chevy Technician
Category: Chevy
Satisfied Customers: 15181
Experience:  GM Grand Master Technician 2007. 14 years experience.
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Chevrolet Express 2500: AC clutch will not engage

Customer Question

AC clutch will not engage
Submitted: 1 year ago.
Category: Chevy
Expert:  George H. replied 1 year ago.
Hello I will help you with your question,
If you can command it on with the scantool it means something is not letting the PCM turn on the AC.
High temperature, low temperature, the pressure switch, are among some of the things that might prevent it being turned on.
Does you scantool show you the AC request?
Does that turn on and off with the AC switch on the dash?
Let me know about that and we can work from there
Thank you