To correctly evacuate the system I would need to rent a vacuum pump, but what is the procedure for this? I didn't mean to sound smart, I obviously need help if i'm going to do this myself. I called a few other shops today and the price was about the same everywhere. I found r134 as low as $20/lb but then their evac. and recharge fee was higher (so the total came out the same). I'll check out the local auto shops tonight and see if theres a set of gauges and a DVD that I can rent/buy to preform the recharge myself. I'm interesting in learning to do this the right way, I just need help. Thanks!!