I have an '03 Duramax with an A/C issue. First of all; new compressor; condenser; evaporator; accumulator; orifice tube; hi and clutch switches. Evacuated, vacuum, 26 oz. charge +/-. Auto climate control system.
When in recirc. mode, air at the vents is 50F and pressures are 33/187.
When recirc. is off, air vents rise to 65+ and pressures rise to 50/225.
Clutch looks to be engaged constantly. Any idea what's going on?