Jeep Cherokee Air Conditioner Not Cold Enough
AC on my 1998 Jeep Cherokee, 4L engine is not as cold as before, even at highway speed if there is significant sun load. Was going to add freon with store bought kit that had a gauge. When I checked low side pressure with gauge it read in the green (35psi) so I did not add freon. Using a good thermometer I could only get 67 degree air out the vent with 88 degree ambient temp and 55% humidity. AC on full at 1500 rpm. Should get 35-40 degree below ambient according to my Hanes manual Compressor stays engaged as long as cooling is called for. Any thoughts?