heater motor

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pirc - 31 Jul 2007 02:13 GMT

I have a 2004 Dakota that will not blow air hot or cold in the
interior. All fuses are ok. Can anyone point me in the right
direction for the next step.

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Tom Lawrence - 31 Jul 2007 02:23 GMT

>I have a 2004 Dakota that will not blow air hot or cold in the
> interior. All fuses are ok. Can anyone point me in the right
> direction for the next step.

Will the blower motor not turn on ANY setting, or will it only run on the
max setting? If it won't turn at all, and you're sure both the fuse and the
blower motor relay are good, you need to disconnect the blower motor and
test it separately. If it's bad, replace it.

If it will run, but only on the max setting, then your resistor pack is
shot, and simply needs replacement.

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jmc - 31 Jul 2007 10:30 GMT

Suddenly, without warning, Tom Lawrence exclaimed (7/31/2007 10:53 AM):

>> I have a 2004 Dakota that will not blow air hot or cold in the
>> interior. All fuses are ok. Can anyone point me in the right
[quoted text clipped - 7 lines]
> If it will run, but only on the max setting, then your resistor pack is
> shot, and simply needs replacement.

FYI, been there, done that. I've been through three resistors in my
2001 Dakota. It's a pretty well-known issue that I'd have hoped they'd
fixed by 2004. The first died in 2003, the second died 10 months
later, but ::whispering:: the third is still working fine.

I didn't want to say that too loud, might jinx it :)

jmc

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pirc - 01 Aug 2007 01:57 GMT

On Jul 30, 9:23 pm, "Tom Lawrence"
<tNlOaSwPrAeMnMcIe...@earthlink.net> wrote:

> >I have a 2004 Dakota that will not blow air hot or cold in the
> > interior. All fuses are ok. Can anyone point me in the right
[quoted text clipped - 7 lines]
> If it will run, but only on the max setting, then your resistor pack is
> shot, and simply needs replacement.

Thanks for the response Tom.
The blower motor will not turn on at any setting on the dashboard
control. I took the blower motor out of the truck and connected it
directly to the battery and it worked. I would assume I could
eliminate that as being the problem.
As for the resistor pack, I am not familiar with what I amlooking for
or where it is located and could greatly use the help.
Thanks

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Tom Lawrence - 01 Aug 2007 06:13 GMT

> The blower motor will not turn on at any setting on the dashboard
> control. I took the blower motor out of the truck and connected it
> directly to the battery and it worked. I would assume I could
> eliminate that as being the problem.

Yep

> As for the resistor pack, I am not familiar with what I amlooking for
> or where it is located and could greatly use the help.

It's a littel block with a 4-wire connector on it. It's usually found in the
bottom of the HVAC box. However, since you said the motor won't even run in
full-speed mode, the resistor block probably isn't your issue (since the
wiring through the resistor block is bypassed when the fan speed is set to
max).

Double-check the fuse - then check the blower motor relay. Swap it with
another relay (the horn relay's a good candidate - you know that one's good
if your horn works). If that's not it, you need to trace out the wiring
with a meter, and find where it's either been damaged, or where a ground is
loose. A wiring diagram would make this task much easier.
http://www.dodge.com/bodybuilder doesn't have an '04 diagram, but it does
have an '05, which should at least be of some help.

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