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82 Mondial 8 speedometer/odometer dead

Discussion in 'Mondial' started by ATSAaron, May 28, 2019.

  1. ATSAaron

    ATSAaron Formula Junior
    Silver Subscribed Owner

    Jun 1, 2004
    927
    Shady Shores, TX
    Full Name:
    Aaron Bunch
    My speedometer and odometer have stopped working. I replaced the speedometer sensor at the transmission with another used one that I had, but no change. Although it's possible that it was bad too? However what is the next step in the flowchart of diagnosis?

    Thanks in advance,

    Aaron
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  2. belfry

    belfry Karting

    May 14, 2015
    146
    Can you check the face of the old sensor for wear?
     
  3. ATSAaron

    ATSAaron Formula Junior
    Silver Subscribed Owner

    Jun 1, 2004
    927
    Shady Shores, TX
    Full Name:
    Aaron Bunch
    I did notice that the faces of the sensors looked different. I didn't realize they ran so close as to actually wear.
     
  4. belfry

    belfry Karting

    May 14, 2015
    146
    On mine I had the same symptoms. Speedo and odometer stopped working. New sensor did not work either.

    It was the gearbox intervals that were the issue, hence checking for any wear marks on the sensors. I didn't know this and continued to drive the car. Now the gearbox is being rebuilt.

    I this happened to me agai, and new sensor didn't cure the issue I would drain the oil and check the magnetic drain plug for debris.
     
  5. ATSAaron

    ATSAaron Formula Junior
    Silver Subscribed Owner

    Jun 1, 2004
    927
    Shady Shores, TX
    Full Name:
    Aaron Bunch
    Well I just happened to have changed the trans fluid this weekend and there were no surprises inside.
     
  6. belfry

    belfry Karting

    May 14, 2015
    146
    After my experiences it'd be nice to see no wear marks on the sensor, just for peace of mind.
     
    ATSAaron likes this.
  7. ATSAaron

    ATSAaron Formula Junior
    Silver Subscribed Owner

    Jun 1, 2004
    927
    Shady Shores, TX
    Full Name:
    Aaron Bunch
    Do you have your sensor that you can post a picture of it?
     
  8. belfry

    belfry Karting

    May 14, 2015
    146
    jkstevens2 likes this.

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