I charged up my A/C (R12) and I think it's OK...on an 85 degree day high side pressure was 190 and low side was around 30...I used an A/C temp gauge in the vent...air coming out vents was 42-43 degrees...on the "MAX" A/C setting with fan on low...med...med-hi air stayed around 43 degrees...when I turn the fan to high the temps did go up to around 50 degrees but I think that's normal since the A/C in my truck did the same thing...the problem is when I use the "NORM" setting...with the fan on low or med the temps are 42-43...but I turn the fan to med-hi and the temps go up to around 60 degrees...the real problem is with the high fan setting...the air coming out the vents isn't cold...it isn't warm either...basically ambient temp...on my temp gauge the temp just kept going up until it hit 80 degrees...why is this only happening with med-hi and high fan using "NORM" setting...