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Car Forum / Subaru Cars / August 2006

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imprezza speedometer

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Pete - 11 Aug 2006 04:22 GMT
Hey group,

The speedometer on my 93 Imprezza is not working properly. (It reads 80 -
100 mph at about 30mph).  However the odometer is clocking correctly.  Where
should I look?  Is it one of the cables?  Or maybe something else?

Pete
mulder@x.files - 11 Aug 2006 04:36 GMT
>Hey group,
>
[quoted text clipped - 3 lines]
>
>Pete

If the odometer is working correctly then the problem would have to be
in the speedo head itself since the odometer is driven from the same
cable. The fix is probably a new cluster since the individual gauges
are not available separately.
Mark T.B. Carroll - 11 Aug 2006 13:37 GMT
> If the odometer is working correctly then the problem would have to be
> in the speedo head itself since the odometer is driven from the same
> cable. The fix is probably a new cluster since the individual gauges
> are not available separately.

Oh, that's interesting. My speedometer generally overreads by at least
5%. I should make sure that my odometer hasn't been doing likewise.

-- Mark
fopetesl - 11 Aug 2006 17:34 GMT
I have to agree unhappily.  My 93 Legacy had a similar problem,
sometimes 0MPH sometimes 140, sometimes OK.  I took mine apart as far
as I could, (I'm an electronics engineer), and suspected bad joints on
the connectors.  Cleaned and lubricated, twice in fact.  Nada.  In
theory you could take the speed dial off but you would need to pull off
the needle (pointer) and would have to fix the shaft in known position,
not impossible, but..
Furthermore the speed needle is driven by a crude (but effective) two
winding motor and I guess that one of the coils has a bad joint.
I got a replacement instrument panel from an eBay scrapper for £20.
Works fine now.
Best of luck,
Peter

> > If the odometer is working correctly then the problem would have to be
> > in the speedo head itself since the odometer is driven from the same
[quoted text clipped - 5 lines]
>
> -- Mark
JD - 12 Aug 2006 00:49 GMT
>> If the odometer is working correctly then the problem would have to be
>> in the speedo head itself since the odometer is driven from the same
[quoted text clipped - 5 lines]
>
> -- Mark

My 04 STi reads 5% high as well.  However, the odometer is fine.
Pete - 12 Aug 2006 03:29 GMT
Thanks.  Sounds like the worst case scenario I guess.  I'm selling the car
and was hoping it was a quick (cheap) fix.  Oh well.  Thanks again.

>>Hey group,
>>
[quoted text clipped - 9 lines]
> cable. The fix is probably a new cluster since the individual gauges
> are not available separately.
Mark Olson - 12 Aug 2006 03:50 GMT
>>>The speedometer on my 93 Imprezza is not working properly. (It reads 80 -
>>>100 mph at about 30mph).  However the odometer is clocking correctly.
>>>Where
>>>should I look?  Is it one of the cables?  Or maybe something else?

>>If the odometer is working correctly then the problem would have to be
>>in the speedo head itself since the odometer is driven from the same
>>cable. The fix is probably a new cluster since the individual gauges
>>are not available separately.

> Thanks.  Sounds like the worst case scenario I guess.  I'm selling the car
> and was hoping it was a quick (cheap) fix.  Oh well.  Thanks again.

Worst case scenario?

I had the exact same problem- malfunctioning speedometer but odometer
worked fine.  I put a replacement instrument cluster in my 98 Impreza
for $70 shipped from a wrecking yard.  It was ridiculously easy to
remove and reinstall.  I wouldn't call $70 an expensive fix.
Pete - 13 Aug 2006 05:30 GMT
Mark, thanks for the info

>>>>The speedometer on my 93 Imprezza is not working properly. (It reads
>>>>80 -
[quoted text clipped - 17 lines]
> for $70 shipped from a wrecking yard.  It was ridiculously easy to
> remove and reinstall.  I wouldn't call $70 an expensive fix.
 
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