2014 Silverado cooling fan and ac problem

[Brad Porter]

I have a 2014 Silverado 5.3 my ac works great when it’s not really hot or early in the am. But later in the day it has problems when the cooling fan kicks in high speed my ac compressor clutch disengages. And when it kicks but down in speed ac clutch will engage again it will continue to does this up and down routine. What is the problem ?????? Freon is good no leaks works great other then when it’s above about 86 degrees outside. Also the truck is not over heating havnt seen it over 210 

[14LTZ-1LZ]

Clutch could be going out. Check the air gap between the clutch and the compressor. The gap might be to wide a high speed to loose contact at that speed.

 

Check this out: https://www.gm-trucks.com/forums/topic/217009-rebuilding-ac-compressor-clutch-bearing-coil/

[rlcole321]

Sounds like a high pressure problem, possible bad hi-press. switch, do you have a gauge set?, could also be a restricted condenser, gauges will tell.