[Shotimes] UPDATE : Cooling Fan Problem - How to troubleshoot?

[Dave Ulring]

UPDATE:

Just heated it up again with meter on the connector.

Cold, I turned on the AC, have 14 volts.
Turned AC off, stayed at 14 volts for about 3 minutes
then down to zero
Temp gauage got up to the N in Normal before I got
voltage at the connector again.

I let it cool down a littl and did a KOEO and saw the
voltage kick up to 12 volts for about 3 or 5 seconds
during the test.  

I would conclude for this that even though fan spins
freely and I got it spinning some how earlier, it
seems to be taking too much juice and it needs to be
replaced or rebuilt.

Agree, other things to test?

Again, thanks for everyones help tonight.

Dave
--- Kevin & Cheryl Airth <clubairth@peoplepc.com>
wrote:

> Dave:
>  Ignore the 542 code. It does not appear to mean
> anything. Seems to come up
> if the car is stalled? Can you swap the relay box
> under the black plastic on
> top of the radiator with another SHO? I think it's
> only working part time?
> Does the fan turn easy or does it drag? Could be
> pulling too much juice and
> has a hard time getting started. When you checked
> that the fan did not come
> on with the A/C, did you check for voltage at the
> plug at that time? No code
> is set if the fan or relay box go bad.
> .
> .
> 
> 
> > Jason, All,
> >
> > I have finally gotten around to doing some testing
> on
> > my SHO.  I have driven it a little on short trips
> > making sure not to over heat.
> >
> > I unplugged the fan and started the car.  No
> voltage.
> > I turned on the AC MAX and got voltage.  I plugged
> it
> > back in and the fan started working.  I turned the
> AC
> > off and the fan turned off.  Normal behavior at
> this
> > point.  I turned the AC back on to see if it would
> > spin up again and nothing.  Tried several more
> times,
> > nothing.
> >
> > A KOEO test only produces a 111 and 542.  I will
> have
> > to look into the secondary fuel pump circuit
> later,
> > but for now, could that be related to normal fan
> > operation?
> >
> > A KOER test does not spin up the fan and only
> produces
> > a 111 when I turn the steering, brake, and goose
> > properly.
> >
> > Ideas?
> >
> > Thanks,
> >
> > Dave
> > 93 MTX
> 
> > > Well, the easiest way to test the fan is to run
> the
> > > KOEO test... if you
> > > don't know how to work the paper clip trick, go
> out
> > > and buy a cheap code
> > > scanner for ford cars and run the KOEO test by
> the
> > > directions in the book,
> > > the fan should run at both speeds during the
> tests.
> > > If they don't, the code
> > > scanner will return codes for an inop fan.
> > >
> > > Jason
> > >
> 
> > > > Hey,
> > > >
> > > > Had an issue yesterday where I got stuck in
> stop
> > > and
> > > > go traffic.  The engine temp kept rising, so I
> > > pulled
> > > > over and let it cool down a bit.  I then got
> back
> > > on
> > > > the highway and it cooled back down.  Once
> back
> > > off
> > > > the highway it started rising again and I
> noticed
> > > my
> > > > cooling fan was not kicking on.  I have
> checked
> > > all
> > > > obvious wiring and connections, any
> suggestions on
> > > how
> > > > to test the fan before dropping $80 for a new
> > > motor?
> > > >
> > > > Thanks in advance,
> > > >
> > > > Dave
> > > >
> > > > 93 MTX - New oil free starter.
> 
> 



		
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