Hi,

I have a 2005 Mustang GT. It is going to start getting hot soon, so I need to figure out why my A/C is not blowing cold air.

The compressor will not engage unless the relay is bypassed. The wiring to the compressor is good.

The following items have been replaced and are new on the vehicle:
A/C Compressor
High & Low Pressure Switch
Orifice Tube
Drier
R-134 Freon

I even tried a different climate control module. That did not make a difference either.

My normal guy that helps on it...

A/C Compressor won't engage