Basically i bought the car in the winter and found out in the summer the AC didnt work, i filled it with r134a and it works for a two or three days then quikly losses the gas. I checked it for leaks and nothing, so i took it to pep boys for a quick ac check last year, know when want to fix it i kinda forgot what they told me was wrong. i actually bought a condensser from a junk yard, but know am pretty sure it was the evaporator that they said was bad, i remember the mechanic telling me that this part tends to rust out because of some defect. Does any one have this prob. I cant get a refund for the condensser but could probably exchange it for a evaporator.what is the exact function of the evaporator? any guys know about this A/C stuff? dont want to just start fxing things that are not broken. THANKS