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98 T800 60 series cruise quit

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by richgoff, Feb 28, 2018.

  1. Feb 28, 2018 #1
    richgoff

    richgoff Bobtail Member

    21
    5
    Jan 28, 2010
    richville NY
    0
    In my 98 T800, my cruise was working about half the time, and now it quit for good a couple weeks ago.
    I changed the clutch switch, speed sensor, speed sensor pig tail, and speedometer. .. all while it was working intermittently.
    Since it quit, when I use the cruise to raise the idle it lopes - warm or cold.
    Could it be the toggle switches? I've chased the wires as much as I can, can't find any bad spots
     
    richgoff, Feb 28, 2018
    richgoff, Feb 28, 2018
    #1
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  3. Feb 28, 2018 #2
    Heavyd

    Heavyd Road Train Member

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    Feb 4, 2009
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    Could be a bad brake switch, park brake switch, cruise on/off switch or set/resume switch or wiring. You can keep throwing parts at it and hope to get lucky, or find someone with Detroit software to see what input you are missing.
     
    Heavyd, Feb 28, 2018
    Heavyd, Feb 28, 2018
    #2
    Oldironfan Thanks this.
  4. Feb 28, 2018 #3
    Oldironfan

    Oldironfan Road Train Member

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    Hold engine ovrde you will get flash codes.
     
    Oldironfan, Feb 28, 2018
    Oldironfan, Feb 28, 2018
    #3
  5. Feb 28, 2018 #4
    richgoff

    richgoff Bobtail Member

    21
    5
    Jan 28, 2010
    richville NY
    0
    I'll try that
     
    richgoff, Feb 28, 2018
    richgoff, Feb 28, 2018
    #4
  7. Feb 28, 2018 #5
    richgoff

    richgoff Bobtail Member

    21
    5
    Jan 28, 2010
    richville NY
    0
    Only got 25 and 27... no codes and air intake
     
    richgoff, Feb 28, 2018
    richgoff, Feb 28, 2018
    #5
  8. Feb 28, 2018 #6
    Oldironfan

    Oldironfan Road Train Member

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    Orange is stored red is active.
     
    Oldironfan, Feb 28, 2018
    Oldironfan, Feb 28, 2018
    #6
  9. Feb 28, 2018 #7
    Oldironfan

    Oldironfan Road Train Member

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    Screenshot_20180228-205558.png
     
    Oldironfan, Feb 28, 2018
    Oldironfan, Feb 28, 2018
    #7
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