01-27-2011, 12:49 AM
Could it also be something with the heater core? I know in my durango when I had to replace my heater core (9 hours and a case after) I got everything back together and when I was hard on the gas, the air blew from the vents, to the defrost, to the floor until I let go. I guess on of the vacuum lines was not put back on properly. This probably has nothing to do with your problem, but better than nothing!