Strange Cruise Control issue

Discussion in 'Freightliner Forum' started by mjfreespirit, Oct 24, 2014.

  1. mjfreespirit

    mjfreespirit Light Load Member

    257
    170
    Dec 4, 2012
    Florida
    0
    When I started my current company the cruise control flat out didn't work. Then one day, my ankle started bothering me and I grabbed a 1ft block of 6x6 wood and wedged it on the accelerator. Got into a town, had to deal with traffic took it off, delivered my load, then got back on the high way and tried the cruise control again, and it worked.

    Now, a month later, after working miraculously, the cruise control will just disengage. I'd restart it, then it would disengage again. Now it just stopped working.

    This is so strange. Any ideas or speculation on what could cause this?:smt119

    I drive a 1999 Freightliner Century Class, Automatic
     
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  3. Friend

    Friend Light Load Member

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    85
    Oct 24, 2014
    NC
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    “The cutoff switch attached to thebrake/clutch peddle needs to be adjusted. Safely try this, When on thehighway use your foot to lift up from under side of the brake / clutch peddle. Now trythe cruise.This works on my Volvo.”
     
  4. Richter

    Richter Road Train Member

    4,090
    1,696
    Feb 13, 2012
    Philadelphia Pa
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    Fl as some wird ishues. First off, always turn main cruse switch off when turning truck off. Start the truck with cruise off. If it fails to engage or disengages after starting, its probaly a sensor jamming up. Try hitting and reliceing the cluch, brake, and trailer brake. If it still wont stay on after resetting those 3 sensors, one of them is failing.

    Pleas dont use wood to jam the peddle. That is quite dangerous because you cant turn the throttle off instantly if you need to brake.
     
  5. mjfreespirit

    mjfreespirit Light Load Member

    257
    170
    Dec 4, 2012
    Florida
    0
    Tried lifting the brake pedal today with my left foot while trying to engage the cruise control. No go. I'll try again later this morning when I run a load into Miami.
     
  6. Ridgeline

    Ridgeline Road Train Member

    20,660
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    Dec 18, 2011
    Michigan
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    This is most likely the issue - the clutch (not brake) pedal's switch is out of adjustment.
     
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