hello yesterday i went to warm up my1989 240dlwagon and i cranked the defrost up the blower was going but it wasn't defrosting my winshield. instead i wound up with a lot of moisture in my car. i put on the heater that is working fine! i thought i smelt some anti freeze smell ,i looked under my car but saw no leaking? insted i saw a hose that came off from somewhere it wasn't a rubber hose it was a metal or aluminum type hose rusted. i hope that this is the problem just a hose or something.