Electric Fan Motor

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05-26-2004, 09:57 PM

#41

mic canic

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Re: Electric Fan Motor

the fan control relay is behingd the right headlite assembly, is that the one you
tested????

bllsht wrote:

> In message <Gctsc.24027$fF3.612160@bgtnsc05-news.ops.worldnet.att.net>, "Tom R"
> wrote:
>
> >I already tested the fan & relay, they both are OK. I switched out the
> >Coolant Temperature Sensor today and still no luck.
>
> The fan staying on before total failure sure sounds like a relay problem to me.
> How did you test it?
>
> If the old fan motor was so worn that it was running slow, it probably smoked
> the relay.
>
> >
> >Now I am wondering now if it could be the thermostat. I know the CTS is in
> >the same housing as the thermostat, but is it upstream of the thermostat?
> >
> >Tom R.
> >
> >"Snow" <snowball_2004@msn.com> wrote in message
> >news:848sc.9996$sr3.117197@news20.bellglobal.com. ..
> >> Well assuming its the same layout as my 4.0 , the electric fan gets its
> >> signal from the temp sensor on the thermostat housing, the gauge gets its
> >> signal from a sending unit on the after left hand side of the engine. the
> >> gauge and fan don't share the sensor/sending units. Sounds to me like
> >> either your temp sensor (on the t-stat housing) or the relay for it has
> >bit
> >> the dust. Eliminate the fan by connecting it directly to the battery, if
> >it
> >> spins then you know its good.
> >>
> >> Snow... "Don Cherry for Prime Minister"
> >>
> >>
> >> "Tom R" <tomr@noreply.com> wrote in message
> >> news:ec6sc.19789$fF3.505534@bgtnsc05-news.ops.worldnet.att.net...
> >> > 1999 Grand Cherokee w/ 4.0L. The electric cooling fan was going through
> >a
> >> > slow death (decreasing RPM's) so I recently replaced.
> >> >
> >> > The new fan worked fine for several days then it ran constantly after
> >the
> >> > engine was shut off. For several days I just unplugged the fan so it
> >would
> >> > not drain my battery. Now when I plug it back in, it does not work at
> >all,
> >> > even when the temperature guage reads 210+.
> >> >
> >> > The temperature guage, thermostat and relay appear to working correctly.
> >> >
> >> > Does the electric fan take its signal from the temperature sensor at the
> >> > thermostat or is there another sensor that could be causing the problem?
> >> >
> >> > Any suggestions?
> >> >
> >> > - Tom R
> >> >
> >> >
> >> >
> >>
> >>
> >
> >