Well, the first attemp at chargind didnt work out so well. Before he charged it he noticed I had the drier installed backwards(Vintage Air does not provide very detailed instructions for this part). We turned it around without replacing the o-rings. So, it did hold vacuum for an hour but on the drive home it lost all of the freon. I replaced all 4 that I backed off and am going to have him inject dye this time to make sure theres no other leaks. It blew cold for a little while