I have a 2006 st and i recently had to have the motor replaced and when thay put the new motor in they didnt pt any freon in it so i took it in and they put a pound in it but, iw as just curious how many pounds our a/c systems hold? And if the one pound they put in isnt sufficent enough I was needing to know how I could rechare it with one of those DIY cans from like pep boys or autozone, like where do i hook it up to? Im really new to messing with the a/c system frankly I livve in TX and have never really used the a/c system until my g/f started complaining lol.