Mechanics

F150 HEATER BLOWS COLD AIR

1999 Ford F-150

Heater problem
1999 Ford F150 6 cyl Two Wheel Drive Automatic 102000 miles

My heater blows cold air when I turn the heat on is the a/c clutch surpose to come on?
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Skmaness
February 14, 2009.



Yes the a/c is going to come on when ever it is in defrost mode. If sounds like you have a blend door problem or blend door motor not working. here is a pic of both.


http://www.2carpros.com/forum/automotive_pictures/249564_538244_1.jpg




http://www.2carpros.com/forum/automotive_pictures/249564_379286_2.jpg


Racefan966
Feb 16, 2009.
My truck did the same thing, try taking out the heater core and seeing if its cloged if it is then you need to replace it

Tiny
Reaper101
Feb 18, 2009.