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1998 suburban A/C problem, need help.
I have 1998 suburban 2wd, 1500, regular gasoline with rear A/C. I replaced the front evaporator , compressor, and the orifice tube. I also flushed the whole system with nitrogen and flush fluid. BUT the AC still does not cool, very little. Air coming out is at 70 F, suction pressure is at 55 psig, and discharge pressure is at 305 psig. What could be wrong? I added 3 lbs of refrigerant and stopped because of high head pressure, unit takes 4 lbs. Ambient temp was around 95 F. And I also pulled a vacuum for about 45 minutes, I know it is no longer leaking. NOTE: reason I replaced compressor and evap was because both were leaking.
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