I have a 2002 Esprit V8. When I turn the heat on, it only comes out at the floor, and actually blows cold air out the side vents (I'm told that the center vents never produce heat by design?) My mechanic at one time determined that it was a faulty box that switches the air flow, but I have no part number and he's since lost the paper that had it on there. He said it was a real PITA to get to at the time, so before we tear into this again I thought I'd ask if anyone knows the part I'm in need of, and where to get one. This was about a year ago and the calls to Dave Bean, and a few other places turned up nothing for that part. Is there an equivalent part from another manufacturer that can be used/retrofitted?