2010 T&C blowing hot air
 

Hello- I recently started having problems with the AC in my Town & Country. It started making a hissing noise then a day or two later it started blowing warm air. I took it in just thinking that the Freon just needed to be recharged. They did that and it worked for about a 1 ½ wk before going out again. So then I took it back in and they tested all the lines with the dye to see if they could find a leak anywhere- no leak. They recharged a second time and it worked for about 2 weeks. Then back to hot.

I then took it to a different place and they replaced the rear evaporator core, which seems to be a common problem with these vans. That fixed it for several weeks now I am back to the same issue.. Any suggestions??