Speedometer jumps around
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This is a discussion on Speedometer jumps around within the General Maintenance, Troubleshooting & Accidents. forums, part of the Tech & Modifying & General Repairs category; I was riding in my friends wrx the other day and he mentioned how his speedometer jumps all over the ...

  1. #1
    Registered User lytlec's Avatar
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    Speedometer jumps around

    I was riding in my friends wrx the other day and he mentioned how his speedometer jumps all over the place...it would go from like 30 to 60 and back and forth when we were going at a steady speed. What could be causing this?!
    <-------- Taylor Swift.
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    Registered User mudferret's Avatar
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    Quote Originally Posted by lytlec View Post
    I was riding in my friends wrx the other day and he mentioned how his speedometer jumps all over the place...it would go from like 30 to 60 and back and forth when we were going at a steady speed. What could be causing this?!
    Not sure about Subarus, but in most vehicles if the VSS (vehicle speed sensor) goes bad, you'll get a CEL.

    Another possibility is wiring on the back of the speedo going bad.
    ...Rob.
    MMVI WRX - VF43 Airboy Tuned @ 3500'

  4. #3
    Registered User EvoEatr's Avatar
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    Make sure the terminals have not backed out of the VSS connector, Sounds to me like you may have a loose wire, or connector...

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