HVAC

Asked by DIMYSELF Sep 06, 2018 at 06:35 PM about the 1993 GMC Sierra 1500 C1500 Extended Cab Stepside SB

Question type: Maintenance & Repair

I replaced all components in my ac system
compressor condenser accumulator both pressure
switched one on accumulator and one on
compressor and the two lines.....issue is im not
getting power to either pressure switches to tell
clutch to kick on...hvac fuse is good....ac light
comes on from the module only relays i cam find
seem good......help?

8 Answers
9,540

Mike answered 5 years ago

Just for the hell of it disconnect the battery for a minute or so I think the ecm provides a ground to the relay

Mark helpful

DIMYSELF answered 5 years ago

Dang it didnt work. Going to try a control module found one at local junk yard $25 wish me luck

Mark helpful

DIMYSELF answered 5 years ago

No it didnt i found a used control module put it in and viola fixed it thank you all for the help guys.

Mark helpful

Your Answer:

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