2002 ford sport trac a/c HELP!!!

[Phosphateminer29]

Ok so I'm looking for help here, my compressor is turning on(I can hear it) and my truck is blowing air, but not cold, at all. I'be charged it in past so I'm assuming it has Freon, obviously it has enough in it to engage the compressor on anyway. Also the plug as pictured, hvac cutoff switch, the wires are not getting power, which I would think they would with a/c on. I have checked the 2 fuses I know of, a 10amp an a larger black solenoid/fuse which seems fine. What is wrong here?

[Tom Greenleaf]

Hi. 1st thing you said just you "think" it's engaging compressor. Not good enough as fans can change you need to know it is or isn't or there's nothing to discuss much about what might be wrong. It is true most issues for lack of cooling are low charge or begin with that hence means a leak.

It can still have enough "static" pressure to engage and not cool at all. Do this if you can if in fact center hub turn on/engaged vs sitting still when A/C is off and belt still turns I'd unplug it at the compressor or known fuse if just for that so it can't try to come on till just testing for the fix. Oil I keep beating on if a system is low doesn't circulate well or at all for the compressor is why - it just doesn't unless it can liquify refrigerant and do the loop you wipe out a compressor for nothing and a ton of things to go with it!

Could use the static pressure - try cold engine knowing the temperature just check it like you would a tire vs real temp right there in Fahrenheit for a start,

[Tom Greenleaf]

Sorry for a second post. Don't go testing cut out switches without proper tools. No incandescent bulb anything for power or better just a DVOM if anything. Horrors can happen those are 5v references when to shut things down more than you think it's computer controlled even the two wire ones can blow a ECM you won't like that,