I'm so frustrated with this project. Basically, I rebuilt my system using modern components for R134 refrigerant and better performance. To cut to the chase, after borrowing a pump and gauges and vacuuming the system (it held for 24 hours), I tried charging it. However, with almost two 12oz cans of R134, the high side pressure is barely half of what it should be and the low side seems stuck around 25". The compressor comes on, it blows cool air, the low side hardline from the evaporator to the hose is freezing to the touch, the high pressure side it hot. I've now tried two sets of gauges with the same results. It's working, just not well. I simply don't have the experience to really diagnose this, and I also don't have the funds to have a shop do it. Since this is a relatively simple system I was hoping someone local would be willing to drop by and see what they think. Bad compressor? Bad expansion valve? Some other issue?