Question about 2002 Hyundai Santa Fe

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Speedometer senser is jumping erraticaly

I have just replaced speed senser and gear that slides in the senser its self its been around a month and doing the same thing again
speedometer senser is jumping erraticaly.went to dealer ship to get it tested they told me the senser did not shoot any electrical fault codes so.
they were not going to replace part.also have changed the other 3 sensers as well,have had the speedsenser output gear checked and the teeth are still good

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  • Aguilatami Sep 02, 2008

    I, have the same problem: the speedometer is jumping, while you are driving; I pushed several times the fog lights switch (on-off) and some times the indicator restore or react on it switching, but other times not. there is any solution on this failure?

  • Anonymous Sep 29, 2008

    my speedometer does it too..Is it something electrical? .If I am in cruise control it drops out too.

  • Anonymous Sep 29, 2008

    My speedometer does the same thing.Is it an electrical problem? A sensor or something like that? When it happens and I am in cruise control it drops out of cruise..

  • rstacy May 11, 2010

    Mine is doing the same thing. How much was replacing the speed sensor?



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I had an Audi doing exactly the same. What happened was that through time, especially if the vehicle gets older with a higher milage, dust and dirt gets into the speedometer itself and causes all the small gears to get sticky. I opened it and lubricated all the small moving parts inside and all were ok. Try it before buying a new speedometer. (I'm talking about the speedometer clock itself) Hope this info might help.

Posted on Sep 27, 2008


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