A/c isnt blowing cold air so we hooked up the a/c machine and it wont take any freon. It has been converted a few years back so its now 134. But what it is doing now is compressor kicks on and off several times and then doesnt come back on. We can jump it by grounding it out and it kicks on but the fan doesnt. We jump the fan by grounding it and it will come on but the compressor wont come on. Am i missing something here and my mechanic it has him fooled as well? Any ideas?? Thanks guys!