Heater set to floor but blows on defrost??

06 Double Cab 4x4...When I set the air flow selector to blow on the floor only, it blows out the defrost vent. It only barley blows on the floor, almost not even noticable. It does this on AC and Heat. Anyone have any ideas on this?? Thanks

 

Its electric and the control harness is a bit fidgety.. Try unplugging and plugging in the harness on the back of your dial assembly. Its a long shot, but the easiest. Beyond that you may have something blocking the gate.

 

Pretty sure that is a normal function of your truck, my '05 does the same thing. It is probably still blowing on the windshield and side vent to defrost the windows when on the feet only. I would not be alarmed by it.

 

Thanks for the reply guys. Hopkins, you may be right. The only thing that makes me think otherwise is that although it does blow on the floor, I have to stick my hand way up under the dash to feel it, and even then it's hard to tell. I could just ignore it, but durring deer season my toes were pretty cold and I was looking forward to my heater blowing on them. That's how I noticed it.