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speedo not working correctly

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Old Jan 17, 2009 | 09:55 AM
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Default speedo not working correctly

Hello again people,I have a problem with my 95 sc400 speedo.When accelerating it`s slow to move,then if I`m doing lets say 50mph it only sets at 30mph.Any troubleshooting on this to find out what it could be? Thanks Lou
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Old Jan 17, 2009 | 10:10 AM
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- Speedometer motor.
- Contact screws on back of speedo motor.
- Faulty speedometer sensor on tranny.

A site search would have revealed this and more info. Good luck.
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Old Jan 17, 2009 | 01:39 PM
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I was told that the incorrect tire size will also throw off the reading of the speedometer.
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Old Jan 17, 2009 | 02:20 PM
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Originally Posted by Felix.
I was told that the incorrect tire size will also throw off the reading of the speedometer.

Uhmmm obviously.


This is not your problem in your case.. If your speedo isn't going up quickly whatsoever that its what the above stated..
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Old Jan 17, 2009 | 05:29 PM
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Originally Posted by Felix.
I was told that the incorrect tire size will also throw off the reading of the speedometer.
Thats true but its not a dramatic difference or should I say a noticeable one. That is unless you are planning on riding dirty on 22s.
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Old Jan 17, 2009 | 05:51 PM
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the speed sensor on the side of my transmission died/ went crazy while i was on the highway 55....30....50..30 then sometimes it would try to work.... replace the speed sensor on the side of your transmission.

Last edited by Slow_Sc3; Jan 19, 2009 at 01:10 PM.
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Old Jan 18, 2009 | 03:55 PM
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Thanks guys for your response.I`ll try to troubleshoot in a few days. Lou
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