We recently got a 99 dodge ram laramie and are having problems with the AC blowing hot. Got one of the cans with the gauge on it but it read 105 psi with the ambient temp at 90 so we didnt try to add freon. When you turn on the ac you can feel the pull of the compressor kicking on but when I stood in front to hear it, it never cycled. Could it have been over-filled? Where do we even start?