Drove my 02 Supercrew 4x4 on a round trip to Colorado (from Indiana) and noticed that there was cold air coming in from below the dash on the passenger side. The heat was set for the floor, which was working, but I still got cold air coming in. Could a vent be stuck or is there another problem.

Whitdog

 

My 03 will do that now and then. Doesn't last long.
I'm going to watch this thread to see what the answer is.

 

I hate to be the guy to bring back old threads, I really do.. but I'm having the same issue with mine. On my way down to Florida from New York my passenger complained about cold air blowing in under the dash.

Does anybody out there have any ideas?

 

My 02 has the same issue but I can't drive it and check it at the same time , so it get's forgotten about.
Wife dosn't forget it in the winter time!