Mechanics

FORD F-250 HEATER PROBLEM

1994 Ford F-250 • 130,000 miles

My heater doesn't seem to get hot. The AC works fine, but when I switch to heat it doesn't warm up. The temp gauge works, the hoses to the heater core are both warm. I took the cover off the heater core and there is hot air coming out the bottom of the cover. It doesn't seem to blow much air when I switch to defroster either. Any ideas? No matter where I set the knob (floor, vent, or defroster) I don't get hot air. I checked the knob for the heat control and it seems to be working properly.
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February 2, 2013.



Is the blend door motor moving the way it should to allow heat into the truck?

Roy