i have a 03 ram and i am having problems with my heater it blows heat out the defrosters the dodge dealer ship said that 1 of my door was broke so i took the dash all apart and pulled all the motors off the doors and checked them and all doors seem to work so i put them back togeather and put dash back in then everthing worked but when i pulled the truck out in the cold the heater started coming back out the defrost i was woundering if it could be heater controls

 

Doubt it is the heater controls. Almost every time guys find it to be the blend doors. I think there are three of them? Did you check and watch each one move as you disassembled and reassembled?

 

i watch all of them put forgot about the wone behind the metal bracket look at it this weekend