Hey guys. I did a 134a conversion on my '93 s10 Blazer last summer. It ran fine for a day then quit. I assumed the refrigerent just leaked out and never got around to dealing with it. Today i wanted to put some dye in today but I ended up recovering a near full charge so I turned out it wasn't a charge issue. I have access to a AC machine at a dealership. The AC ran when I was charging it and for about a minute afterwards then the compressor stopped for good. I shut the car off started it after a few minutes, compressor ran for a minute and then stopped for good again. I am having a nagging feeling of a clog in the oriface tube, but also not sure I shouldn't be looking into a pressure switch as well. Any thoughts ones the issue?