I smell freon in the cab of my jeep and I rapidly lose freon if filled. Does anyone have a diagram of the evaporator connection. Initially i thought the only connection was the connector block at the engine compartment firewall but after looking at an evaporator, there has to be another in the air handler. I am trying to determine if it can be repaired without removing the whole dash. obviously, if its a weld on the core there's no easy way but here's hoping. After running about 3 14 oz cans of freon with stop leak through it and replacing service port caps, the charge holds for about a week so it would seem to me that an o-ring leak may be more likely.