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2004 ram 2500 heater and heat control issue


This is a discussion on 2004 ram 2500 heater and heat control issue within the Interior forums, part of the 3rd Gen : 2002 - 2008 category!
hi i am new to the forum and am not a mechanic. here is my problem. my heater control knob ...


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Old 12-04-2016, 07:12 PM   #1 (permalink)
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Ram Year: 2002
Engine: hemi 5.7
Default 2004 ram 2500 heater and heat control issue
hi i am new to the forum and am not a mechanic. here is my problem. my heater control knob that i use to switch from feet to defrost, etc, doesnt actually change anything, my blower only comes out the vents.
also, when usng the heat, the passenger vents blow somewhat warm air but the drivers side is blowing cool to cold air
any suggestions would be greatly appreciated!


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martman is offline   Reply With Quote
Old 12-05-2016, 06:29 PM   #2 (permalink)
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Ram Year: 2002
Engine: 5.7
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The first problem is most likely a mode door is broke. Research it. Second problem is same I had. I just fixed it. Your heater core is clogged up.
I pulled heater hoses at engine. Then flush both directions. I then filled with CLR and let sit for 10 minutes. Then flushed it both directions about 20 times. A ton of crap came out. Heat is now perfect and blows 140f out every vent.

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