I've been troubleshooting my A/C. It seems that the a/c compressor clutch doesn't seem to engage about 50% of the time. There is no pattern that I have noticed. I have a new a/c compressor, condensor, and expansion valve installed. When the clutch is engaged it cools nicely.

I'm beginning to think that it is an electrical problem. I've checked the relay and it is fine. Any ideas on this? (what about the a/c pressure switch or coolant temp sensor?)

Any help is appreciated.

 

Hey bro, im having the same problem in my car, i also noticed when it is raining out and i drive througha puddle the a/c will cut out and blow out jsut hot air. im takin it in this saturday to get checked out. if anything comes out of it ill let u know