A/C Doesn't blow cold anymore

[latvius]

So where in the rear was it leaking? couldn't tell from the pictures. also how do you know how to line it up are there marks? I'm thinking I have the same problem with my Yukon and not sure how to test the actuators.

The rear evap, I put dye in the system and under the UV light it was easy to spot. I did not get a pic of it under the light. As far as lining it up, the blend door end is a circle with a flat spot, the flat spot on the door and the flat spot on the actuator have to be lined up or you cant push the actuator on. Once you have it all together pull the HVAC fuse to reset the system and it is supposed to relearn the actuators movement ability.

Also looking back I was getting a bad smell out of the rear AC, I just thought it was mold but that was the freon leak.