With all of the repair history on the A/C the best thing would be to start all over again. Replace any questionable (field repaired) hoses, all of the seals and "O" rings, flush, purge, and pressure test, send the compressor out for rebuild or just replace. With contamination known to be in the system the safe thing is to replace the accumulater. At this time it is good to consider converting from R-12. I suggest you find yourself a well equipped shop that can handle this and do it right. It might get expensive but it is more expensive to do it cheaply and often. Fortunatly the A/C system in the Delorean isn't too unfamiliar to most A/C shops. Just lend them the Workshop Manual and tell them which Delorean vender you want them to get the parts from. Once properly fixed the system is pretty reliable. As far as replacing parts you could proabably do it yourself but any shop would just go over your work to clean the system and check for leaks. Unless you have the manifold gauge set, vacuum pump and gasses you will have to go to a shop anyway. Since you seem to be in California you really can't enjoy the Delorean without A/C so to use the car you really need to have a functional A/C system. David Teitelbaum vin 10757 --- In dmcnews@xxxxxxxxxxxxxxx, "therealdmcvegas <DMCVegas@xxxx>" <DMCVegas@xxxx> wrote: > Lately my A/C has not been working properly. The in winter time here (about > 40-50 F outside) the air is not cold, and the Compressor is cycling every 15 > vin 6585 "X"