SETTING A NEW SPEEDOMETER IN A 1990 ltl 9,000

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by CORNKING, Jul 6, 2022.

  1. CORNKING

    CORNKING Bobtail Member

    1
    0
    Jul 6, 2022
    0
    i HAVE A NEW SPEEDOMETER THAT TOPS ITSELF OUT RIGHT AWAY. i THINK IT HAS SOMETHING TO DO WITH THE 10 LITTLE NUMBERS IN THE BACK OF THE UNIT.
     
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  3. SmallPackage

    SmallPackage Road Train Member

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    Dec 20, 2019
    Marion Texas
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    Once I had replaced a tach in my Freightliner and had to flip the dip switches in the back. I set them exactly like the old one. I noticed the speedo had same dips on back at that time. Have never had to mess with it.
     
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  4. JoeyJunk

    JoeyJunk Road Train Member

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    Dec 31, 2010
    Washington, PA
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    Same here. Set the nee one same as old. All is well.
     
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