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Ask GM Tech (Cam) Your Own Question
GM Tech (Cam)
GM Tech (Cam), Chevy Technician
Category: Chevy
Satisfied Customers: 15201
Experience:  GM Grand Master Technician 2007. 14 years experience.
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Chevrolet 2500HD: Not getting power to clutch cycling swit

Customer Question

Not getting power to clutch cycling switch.
Submitted: 2 years ago.
Category: Chevy
Expert:  Kavey replied 2 years ago.
Hello. My name is ***** ***** I will be helping you today.
Check the 4 pins at the compressor relay with the A/C turned on. Check all four for ground and then check all 4 for power. Let me know which ones have power, which ones have ground and which ones have nothing. There is a pinout on the side or bottom of the relay letting you know which pin is which so you can relay the right info back to me.
Customer: replied 2 years ago.

I haven't checked relay but I have got a new one and it is working. It is same as horn relay and I swapped l, horn worked. It will randomly work when it wants. Sometimes it blows cold and clutch engages exactly like it's suppose to. Others it just doesn't

Expert:  Kavey replied 2 years ago.
Having a good relay will not get power TO the relay.
Customer: replied 2 years ago.

Ok. So u need me to check power going to the relay pins. I will check them then get back to you.

Expert:  Kavey replied 2 years ago.
Yes. Let me know and we can move on.
Customer: replied 2 years ago.

It has been working so haven't had a chance to test. Like I said it'll work fine for X amount of time. Then it'll quit, may quit for awhile or may kick back on.

Customer: replied 2 years ago.

The relay is getting power like it is suppose to