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ok so my heater is blowin cold air threw all the vents at full blast. I flushed the heater core and it was flowing great. the heater core gets hot too. the air flows out fine and I "burped" the radiator. my temp guage works fine to its running at 200 degrees and it seemed like when I had the hood up and the heater on full blast that I could here the AC unit comin on... anyone kno what wrong?
ive looked all over the truck for a valve or something that could be stuck... where is it located and how do you fix it because I cant handle having no heat . the other day I drive 5 miles to work lookin through a grapefruit sized whole in my windshield because the de frost didn't work
Its under your dash in the black box where the evaporator core and heater core are in. When I replaced my evaporator core, I had to make sure that door was connected properly and not stuck. The temperature control knob is mechanically operated. It is connected to a wire that opens and closes the door.
As for the cold air I would say there is only 2 things that cause this.
1. Bad stepper motor or damaged stepper motor shaft (heater treater)
2. Plugged heater core and both hoses are equally hot. Because if a heater is functional and working properly it should be colder on one hose.
Mopar1973Man -=- AKA: Michael Nelson
2002 Dodge Ram 2500 - Cummins Turbo Diesel - 5 Speed 4WD
1996 Dodge Ram 1500 - 5.9L V8 Magnum - Automatic 4WD
how do you get to it... there was a little black box under my heater core but when I poped the cover off it had "gears" in it. and as I turn my knob from cold to hot there was like a shaft in top of the little black gear box that moved a little but would stop in between hot and cold and not move any more .... is this the box where the valve is or what is it
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