a/c shuting off

[ptr34]

everythings good with the Freon and new cycle switch, orifice tube and pulled vacuum on it and it has no leaks.it works great most of the time. then out of thew blue it will shut off and not come back on. I can gas it hard and it will come back on????????????????????? what can cause this. guess im going to change the high and low side valves out next

[brscott38]

i have the same problem one day it works great and then sometimes it blows hot no rhyme or reason. It does it both with or without a load. Im sure someone can help steer us in the right direction

[WarChild]

sounds like a vacuum leak to me.

[ptr34]

If ots a vacuum leak. Y would it start working after flooring it? And where would the leak be. Is it by tge a/c unit

[WarChild]

Have you actually looked at the ac compressor to see if it shutting off? if not then its not the ac.

Beautiful truck by the way.

[ptr34]

Yes the compressor shuts off. And thanks

[WarChild]

Originally Posted by ptr34

Yes the compressor shuts off. And thanks

That sucks. could be your compressor going out too then. There is a screen somewhere in the darn system that could be clogged causing the coolant not to be able to pass through.

[Coach73]

Could it be something electronic? I drove a newer truck and the a/c quit and it was the control switch (it had dual zone). Good luck. Coach.

[WarChild]

At this point it could be anything. I hate to say it but your probably going to have to take her in.

[Banshee365]

I'm assuming you know that the AC compressor cycles under normal operation since you mentioned replacing the cycle switch. Does the air out of the vents warm up when the compressor shuts off like that?

Maybe check the specs on the clutch. If the gap is too much it will not work properly and if it's too small it could hang up and cause more problems. It needs to be just right.