Hello i purchased a 2001 dodge ram 3500 van, i have bought everything i can think of to fix it i go to recharge the a/c and it just leaks out as fast as i put it in. The compressor, condenser, lines and the little black cube that goes into the evap core and the canister. I have not pulled out the evap core yet but i'm afraid that it may not be that.

 

Get some refrigerant with dye in it, and a UV light. Blow some refrigerant into the system, let it leak out, then go looking for it with the UV light.