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95 Kenworth T600 tach

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Faviang9, Sep 10, 2021.

  1. Sep 10, 2021 #1
    Faviang9

    Faviang9 Bobtail Member

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    Sep 7, 2021
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    95 Kenworth t600 12.7 Detroit with a 13 speed. I’ve replaced the tachometer gauge with a new one, new tachometer/ speed sensor. And I’ve gone through all the wiring. Still can’t get the tachometer to work. Any ideas?
     
    Faviang9, Sep 10, 2021
    Faviang9, Sep 10, 2021
    #1
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  3. Sep 11, 2021 #2
    blairandgretchen

    blairandgretchen Road Train Member

    13,329
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    Dec 9, 2011
    South west Missouri
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    Amtek replacement tachometer?

    I have 95 379 with 12.7. Amtek replacement wouldn’t work. Friend sent me a used Peterbilt guage. I returned the Amtek.

    Still no idea why it wouldn’t work.
     
    blairandgretchen, Sep 11, 2021
    blairandgretchen, Sep 11, 2021
    #2
  4. Sep 11, 2021 #3
    Faviang9

    Faviang9 Bobtail Member

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    Sep 7, 2021
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    I bought mine brand new from Kenworth
     
    Faviang9, Sep 11, 2021
    Faviang9, Sep 11, 2021
    #3
    blairandgretchen Thanks this.
  5. Sep 11, 2021 #4
    blairandgretchen

    blairandgretchen Road Train Member

    13,329
    71,450
    Dec 9, 2011
    South west Missouri
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    So - KW branded? Like original?

    Did you set sensor correct? Usually all in, then back off 1.5 turns and set jamb nut.

    Test continuity of wires. Resistance of sensor.
     
    blairandgretchen, Sep 11, 2021
    blairandgretchen, Sep 11, 2021
    #4
  7. Sep 11, 2021 #5
    Faviang9

    Faviang9 Bobtail Member

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    Sep 7, 2021
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    Yes sir original. And yea I did
     
    Faviang9, Sep 11, 2021
    Faviang9, Sep 11, 2021
    #5
    blairandgretchen Thanks this.
  8. Sep 14, 2021 #6
    Inderjit

    Inderjit Heavy Load Member

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    707
    Sep 17, 2017
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    Measure the resistance of the sender under the truck and then plug
    it back in and measure the resistance at the plug where it connects
    to the tachometer. It should be the same. Also make sure there is
    power and ground at the tach.
     
    Inderjit, Sep 14, 2021
    Inderjit, Sep 14, 2021
    #6
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