No cruise or jake on 2005 Kenworth W900L w/Cummins ISX

Discussion in 'Trucks [ Eighteen Wheelers ]' started by MARK AT PIMCO TRANS, Aug 21, 2012.

  1. MARK AT PIMCO TRANS

    MARK AT PIMCO TRANS Bobtail Member

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    Dec 27, 2011
    SAN ANGELO,TX
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    Maybe someone can help. Been scratching my head pretty good on this on. Idle can be adjusted from cruise switch, but truck has NO cruise while driving and engine brake acts like it is cutting on and off while operating. Truck has new clutch switch, engine brake wiring harness, engine ECM (replaced for another concearn and yes has cruise enabled - had same concearn before ecm replacement), speedometer head, and transmission speed sensor. Brake pedal switch is working. Truck does not have steering wheel controls just dash switches. Any help is sure appreciated. -Mark
     
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  3. WMGUY

    WMGUY Road Train Member

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    Jan 1, 2011
    Nine Mile Falls, WA
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    i had a similar problem on my 08 volvo with isx, as time went on i wasn't able to bump the idle with cruise switch either but ended up being the switch on the clutch pedal needed adjusted and is a common problem from what the tech said, he said the vibration of the road is enough to kick the switch if not adjusted properly


    if all else is good i wold think it would be the switch
     
    MARK AT PIMCO TRANS Thanks this.
  4. MARK AT PIMCO TRANS

    MARK AT PIMCO TRANS Bobtail Member

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    Dec 27, 2011
    SAN ANGELO,TX
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    Clutch switch is new, adjusted properly, and will cut off high idle when depressed. Thanks.
     
  5. bubbanbrenda

    bubbanbrenda Road Train Member

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    Feb 27, 2011
    Middletown,Oh.
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    If its a ISX there is 2 speed sensors on the trans 1 for speedo and 1 for ECM,or at least my Pete is that way
     
  6. Worthken

    Worthken Light Load Member

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    Jun 2, 2012
    Delmas South Africa
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    Have the same issue on my FLB, with S60, with the cruise. Can bump the idling up but the cruise is not working while moving. I read somewhere there is a switch on the tractor parking brake valve, that can cause this. Don't know if its same for KW. Btw the motor still shuts off after 2mins of idling even with the rpm's bumped.
     
  7. EccII

    EccII Bobtail Member

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    Oct 24, 2012
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    still does not work ...
     
  8. bubbanbrenda

    bubbanbrenda Road Train Member

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    Feb 27, 2011
    Middletown,Oh.
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    Did you get it fixed?
     
  9. MARK AT PIMCO TRANS

    MARK AT PIMCO TRANS Bobtail Member

    19
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    Dec 27, 2011
    SAN ANGELO,TX
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    Nope still messing with it. Traced and ohmed all wires from speed sensors through body and engine wiring harness. All check out ok. Had local cummins dealer scan truck and it shows no diagnostic codes at all.
     
  10. allan5oh

    allan5oh Road Train Member

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    Jan 6, 2010
    Winnipeg, mb
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    Check wiring to batteries.
     
  11. Pablo-UA

    Pablo-UA Road Train Member

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    Oct 11, 2010
    Borispol, Ukraine
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    use insite software to read switches status before you do any ajustment
     
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