My air is only blowing thru the defrost and foot vents and not to the face. I ripped my dash apart to make sure the cables were not broken. All are in tact and moving. I don't know what to do next?? Any advice? Can I manually adjust th vent somehow just to make it blow at my face? Or is there a way to access the "flaps" to make sure there isn't any blockages? Any help would be appreciated!