[Hands On]

I know this thread is a very old one.....but it is a very legitimate problem with these Durangos.
02 Dingo- same ac problem. Solved!
I wound up stripping the efan and mechanical fan. Put in a BMW dual temperature switch and a Volvo fan controller along with a Ford Taurus efan. It's all automatic. No on-dash switches etc. Had to remove dash to replace all motors that control the air vents, might as well. Went with oem from eBay. While I was there I completely insulated the entire ac/heater plenum. Now the ac will freeze you out in these extreme temperatures here in Phoenix Az. Plus, the engine temperature gauge never gets past the half-way mark.
Dodge never really put much thought into the ac systems on these Durangos for the desert heat.(pretty much all the big 3) had to modify the ac and cooling system on my Town Car as well.
In Arizona, you pretty much gotta go full hog to get your ac and cooling system working properly on these Durangos.
Hope this helps someone.