I let out some of the freon. The belt is new but when I put it on I could not find the pointer to tell when the tension was right. I found it tonight and loosened everything and tightened it according to the book. At idle the low side is #50 and at 2000 rpm's it is between #30 and #35. The air coming out of the vents is about 60. The belt must have been the problem. How can I fine tune the a/c now? I may have let out too much freon. Thank you for your help!!!