Heat help!

[morgandollar]

The back heat on my 95 AWD aerostar blows out cold air. The front(dash) is blowing out hot air like normal. Is there a door in the air duct somewhere between the front and back that could be stuck open? And where might it be located.
Thanks,
Teddy

[Hick]

sounds like your low on antifreeze. did you check it
mine was doing same thing just added some fluid and it was all good,