How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask sprinkles08 Your Own Question
sprinkles08, ASE Certified Technician
Category: Chevy
Satisfied Customers: 21436
Experience:  ASE Master and Advanced level certified. Factory trained with 15 years dealership experience
Type Your Chevy Question Here...
sprinkles08 is online now
A new question is answered every 9 seconds

The a/c isn't working in my truck but when I command it on

Customer Question

the a/c isn't working in my truck but when I command it on from the scan tool it comes on and works great. so I know the pump, fuse, relay are all good but im wondering if the switch on the dash is no good? how can I bypass the switch to send the signal for the a/c pump to come on?
Submitted: 3 months ago.
Category: Chevy
Expert:  sprinkles08 replied 3 months ago.

Hello and welcome to JustAnswer!

There are many things that could be preventing the compressor from engaging. It could be an ambient temperature signal issue, evaporator temperature, an incorrect pressure reading, or it could definitely be the control head.

Are there any codes setting in any module?

Did you look in engine controller and control head data to see if it was showing compressor engagement being commanded?

Customer: replied 3 months ago.

Turned out to be the evaporator temperature module! I just bypassed it and the a/c works great now!

Expert:  sprinkles08 replied 3 months ago.


Related Chevy Questions