Chevrolet Repair Questions? Ask a Chevy Mechanic for Answers ASAP
Hi my name is ***** ***** I will be happy to assist with this today.In some cases I may need more info to assist better.I apologize for any delay.
If you havent had the fault codes checked/read out in the engine computer this needs done first.If a code is set in the engine computer in some cases this can disable the compressor from operating until the code is either cleared out with a compatible scan tool or the fault for the code set is repaired and then the code cleared out.This is usually why no signal is present to energize the relay to operate the compressor.
If this was already checked let me know.
If more help is needed, use the reply tab to continue our conversation. If no further assistance is needed, kindly rate my service,your 5 star rating is appreciated.You can rate at any time and we can continue to work on your question as this will not close out your question.Keep in mind in some cases it can be difficult to fully diagnose or help repair your vehicle without seeing it and I work on delivering the best possible answer from what I see to work with.
What liter engine is in your model here?
Do you have at or near 12 volts DC at the relay with the key on or engine running.Then with ac on do you have a ground signal at this relay only when you turn on the ac then no ground when the ac is switched off?
Let me know so we can continue,thanks Pete.
Sounds good.I am here all day off and on.
Let me know if you need anything else and feel free to rate my help here or above as this is how I receive credit for my time.Your 5 star rating is appreciated