Well, there could be a few problems. The first assumption I would have is that the AC condenser fan is not functioning properly. Turn the Escape on and turn the AC on high. Watch the fan for about 5 minutes after the vehicle warms up and see if it turns on. If it does not, check the voltage going to the fan.
If you have roughly 12 volts going to the fan, then the fan motor has failed. If not, you have a wiring problem somewhere.
The other thing that comes to mind is excessive pressure in the system. This is typically caused by a clog in the system and must be checked by a professional.
So check two things first:
a) A/C condenser fan.
B) R134a pressure in the A/C lines. (Professionally done)
Get back to me after you check these.
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Wednesday, June 22nd, 2011 AT 2:03 PM