my defroster comes out cold when i have it on warm, but when i put it on vent it comes out warm.

2003 DODGE RAM
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EMERSONYOUNG
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it is a dodge ram 2500 quad cab 2003
Dec 1, 2011 at 10:46 PM
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RASMATAZ
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The only way to find out is you need to degut the dash and investigate-could be a door/actuator problem could also be the HVAC control module
Dec 1, 2011 at 10:52 PM
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MARVEY
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WHERE IS THE HVAC CONTROL MODULE LOCATED
Dec 7, 2011 at 7:26 PM
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RASMATAZ
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Its where all the controls for the AC/Heater operations
Dec 7, 2011 at 11:17 PM