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mcline1968 06-28-2009 06:43 PM

AC blower problems
Hello all,
This is my first post on here and I am hoping that I find this forum to as helpful as the corvette and harley forums have been to me.

Here is my issue:
I have a 2004, 2500 4x4, 5.7
About a month ago i started having this problem that once in a while when i started the truck I would get no blowing from the AC. I could feel that there was very cold air trickling out of the duct but no blower. I would turn the truck off, then turn it back on and that would solve the problem.

Friday, it happened and the blower has not come back on since. at first i thought it was a panel switch issue but have since realized that the temp. switch and the blend switch are working.:doh:

So i feel it is now either the blower motor or the blower motor resistor.

How can i test the resistor and can i test the blower motor by simply connecting it straight to 12v and a ground?:4-dontknow:

Any suggestions would be reatly appreciated.


SpokaneDodge 07-05-2009 02:44 PM

If it is the resistor the motor should still blow on the highest setting.

ljonesj 07-05-2009 03:22 PM

yeah it might still be the selector swithc in the dash or the motor itself

jamesb0 07-07-2009 09:42 PM

If there was an issue with the motor you would have heard some noise most of the time ( DC motors are very reliable ) I would guess that the switch went or a lose wire fried. I would check to see if there's a circuit breaker first, they some times go, then work your way from there or the motor on back till you find power. I hate taking apart the dash. BE CAREFUL YOU CAN SET OFF THE AIRBAGS WHEN PROBING.

steelman512 12-22-2010 11:34 AM

I have been battling this same issue in my 02 Ram 1500. I have read somewhere that this issue lies within the steering column cover. I have yet to remove this and look under it, but may do it later today. The other issue with mine is that the blower stays on when I turn the truck off. When its on the lowest level, I ussually forget about it and come back to a dead battery the following day.
Good Luck! :LOL:

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