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1999 t800 speed sensor...speedo

Discussion in 'Kenworth Forum' started by ameriwest, Oct 1, 2016.

  1. Oct 1, 2016 #1
    ameriwest

    ameriwest Bobtail Member

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    Oct 1, 2016
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    Have a 1999 t800 with a speedometer that reads incorrectly.....30mph at a crawl.....80+ at approximately 30mph. Has had two new speed sensors installed by owner. My question is there a relearn for these trucks or do indeed to look somewhere else.
     
    ameriwest, Oct 1, 2016
    ameriwest, Oct 1, 2016
    #1
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  3. Oct 1, 2016 #2
    AModelCat

    AModelCat Road Train Member

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    I was thinking maybe the dip switches on the back of the speedo. Will it ever read 0 when stopped or does it stay stuck around 30?
     
    AModelCat, Oct 1, 2016
    AModelCat, Oct 1, 2016
    #2
  4. Oct 1, 2016 #3
    062

    062 Road Train Member

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    Might be bad speedometer,and they're high dollar for a new one.
    Have the settings in the ecm been checked?
     
    062, Oct 1, 2016
    062, Oct 1, 2016
    #3
  6. Nov 3, 2016 #5
    1catman

    1catman Bobtail Member

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    Jul 5, 2016
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    1catman, Nov 3, 2016
    1catman, Nov 3, 2016
    #5
  8. Nov 3, 2016 #5
    1catman

    1catman Bobtail Member

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    Jul 5, 2016
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    I had a faulty speedo on my
    2005 Kenworth. The dealer wanted almost $500 for a new one. I purchased an electronic unit for approx. $150 less and had the company set the odometer portion to my current mileage. Works great!
     
    1catman, Nov 3, 2016
    1catman, Nov 3, 2016
    #5
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