First, I searched for a previous thread but, didnt find anything that helped. On an 07 Dodge 1500 Big Horn with a Hemi, my heat just this week stopped blowing (very much) out of the floor vents. With the control knob on the floor setting, it blows hard out the defrost vents. All of the other settings work as they should. I just cant get very much out of the floor vents. It is some but, my head & upper body is frying before my feet ever start to get warm. I can put my hand down there & its coming out right by the hump over the tranny, just out from the accelerator, but not nearly like it comes out the defrost vents (while on the floor setting). I can only guess either the control selector isnt working correctly or the mecanical operation of the vent door isnt working right. But it seems like the selector is opening the wrong door OR isnt opening the floor door all the way which causes the defrost door to open. Make any sence at all? I am hoping I can just change the control selector in the dash.