Cut of my air.
 

Have an 03 exp. and all of the sudden air will not flow out of the front vents. No matter where the dial is set, floor, face hot or cold. Air comes out of the defrost vents under the window and the vents in the rear. Is this a lose hose or what. The air whether it is hot or cold works fine, it just does not come out of the front vents in the dash.