Cold air blows in from behind glove box area on the passenger side of my 2005 Ford Explorer. All the vents seem to be working. The heater is wroking as well. You notice the problem the most on the freeway while sitting on the passenger side front seat. The heat is cranked up but your passengers legs will freeze. The dealer loaned me another Explorer and it dosen’t have the same problem. They tried to say they were unable to replicate but I pushed back on them. So this is the 3rd day in the shop just waiting for them to diagnose. Anyone have any idea what the problem is?