[KEVEN1767]

Thanks for all the info AwPhuch. I have flushed the compressor with new PAG oil and added about 3oz before installing. I put a new drier on and everything is hooked up. I bought a little air operated ac vacuum but it didnt come with much for instructions other than attach to the ac drain port. It also didnt come with a hose to attach to the drain port.1st, I dont know with is the drain port and what kind of hose and coupling to but. Since this is 134a system, is it supposed to attach to the low pressure port where I put freon in or the high pressure port which has a red cap on it?? Also, any ideas about the hose that would attach to the vacuum with has a threaded fitting?? Thanks for your help...