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Old 08-01-2012, 03:06 PM
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starquestbd22 starquestbd22 is offline
Dodge Ram Forum Senior Member
Join Date: Jan 2011
Location: NC
Age: 33
Posts: 2,675
Gender: Male
Vehicle: 2004 Dodge Ram 1500 4X4
Trim Level: Sport quad cab
Color: Bright Silver Metallic
Engine: 2003-2008 345ci (5.7L) Hemi V8 345hp 375lb/ft
Rep Power: 6
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I think the reason that we got off on talking about the plastic limit pins and plastic doors (the common failure point on third gen trucks when air won't go where it is supposed to) is because you mentioned that you thought it might be your blend door because of the air blowing out two different vents when you had it on the floor setting. As I said in my post, I don't think this is your main problem. You could be correct about experiencing HVAC door problems (which would be mode door 2, not the blend door) secondary to your primary problem which is obviously the fan not running.

Normally I would say start by troubleshooting the fan motor, fan motor resistor pack, and the fan control switch. However, in this case I really don't see how it can't be related to the ignition seeing as how the swap made the fan run but caused other issues. Have you considered swapping the new ignition module for another new one just to make sure that you didn't, on the very off chance, get a new module with problems? Maybe someone else with a little more electrical knowledge will join in. I'm pretty familiar with the main HVAC components but I don't understand how the ignition could affect the fan motor alone and nothing else. Seems like to me it would either have power or it wouldn't.
06-08 chrome clads w/33" Cooper Discoverer H/T Plus, Mopar tailgate spoiler, debadged door trim & tailgate emblems, 13" antenna, LED dome & maps, Magnaflow 22" SI/DO, 18% tint, "HEMI" hood spears, VHT tinted tails & third brake light, Lamin-x optic blue fogs, leveled w/McGaughys 2" drop shackles.
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