Thread: heater fan
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  #10 (permalink)  
Old 03 Oct 2005, 10:18 pm
TeGGeR®
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Default Re: heater fan

"simondet" <simondet@willmarnet.com> wrote in
news:508e294d9a253506ef97289241c42407@localhost.ta lkaboutautos.com:

> I finally replaced the blower resistor and the blower worked fine and
> all 4 speeds. But now I have another problem. The fan speeds up and
> slows down and it is especially noticable on high. I can turn the fan
> completly off and turn it back on high and it works good for a few
> seconds and slows down. It also speeds up when I slow down or come to
> a stop. Seems to be erratic. Is this a voltage regulator problem or
> alternator belt problems?
> Or what? I am stumped!
>



How's your battery? Turn your headlights on, then compare brightness at
idle and at 2,000 rpm.

I suspect your battery is dying, or the cables are corroded/frayed/loose.
You just never noticed this until all the fan speeds worked again.

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