Chevrolet Repair Questions? Ask a Mechanic for Answers ASAP
Hello & Welcome to JA,
There is a possibility that the circuit from the computer is intermittenly shorted to ground somewhere the computer & the ac relay.It is also possible that there could be a faulty circuit control driver in the computer,grounding the circuit when it should not.I would try to eliminate the circuit first & then try a computer.I am going to send some schematics to help you.Be right back.
Ok,see you in a bit.
Thanks for the information John. I'll be looking for that Diode. I guess the reason why I think that it might be the Diode is because the scan tool disagrees with the control. When the control says the compressor is off, the compressor is really on. I wonder if it could be feeding back through that Diode if current goes both directions.
Would we be able to finish discussing my truck on Monday. I need to BBQ for some friends coming over for the 4th. I've never used JustAnswer before so if I need to pay you now I can, or can we wait until after the 4th. Thank you so much for your help. This has been such a frustrating pick up problem.
I have found that if I push on the compressor clutch while the engine is running and the a/c on, the clutch will re-engage and the a/c will cool until it cycles again. I think it has a bad clutch or the air gap is too wide. Do you concur with this?
Thank you very much, John. You have been very helpful.
You are very welcome,Please have a good evening.