Originally Posted by JayRay08
pressure is somewhere between 80 and 90, my fan is a clutch fan, my IAC is brand new. so if the AC is cold then the compressor is good?! thats good news... it is a 90 amp alternator =(
80-90psi relates to a 75-81 degree evaporator temp. If ambient air temp is 100 degrees then yea 80 degrees could feel cool but you should have a 45 degree evaporator which is about 40 psi on the low side.
As for the bog issue, yea the idle picks up RPM when the a/c clutch energizes because it does put a strain on the engine, they say it takes 4hp to tun A/C compressor, maybe you need an engine tune up. The alternator powers the fan thats the only real current draw, the clutch solenoid draws hardly nothing.