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Why would Cruise control work only when it wants?

Discussion in 'Volvo Forum' started by Pmracing, Aug 20, 2014.

Page 2 of 3
  1. Aug 21, 2014 #11
    heavyhaulerss

    heavyhaulerss Road Train Member

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    it is designed not to work if it thinks your tired, so you don't fall asleep when driving. safety designed. :biggrin_25523:


    not really!. :biggrin_2559: but on my Detroit mine did the same thing years ago, I forgot what fixed it, I know it was a sensor located behind the dash, seemed to think it was some kind of vacuum & or electric type sensor. I remember putting a toggle switch on mine bypassing the factory switch to get it to work. sorry I cannot be more helpful.
     
    heavyhaulerss, Aug 21, 2014
    heavyhaulerss, Aug 21, 2014
    #11
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  3. Aug 21, 2014 #12
    Pmracing

    Pmracing Road Train Member

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    It is a company truck so that "might" not be an option. Hehehee

    I would really hate to deal with the hassle of putting it in the shop for such a small issue. Only to find the dealer can do nothing to diagnose/resolve the problem. Been there, done that too many times with dealers.

    Mikeeee
     
    Pmracing, Aug 21, 2014
    Pmracing, Aug 21, 2014
    #12
  4. Aug 21, 2014 #13
    nasriza

    nasriza Road Train Member

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    Try a start up cte some volvo use it to engage cruise and engine brake. Turn on ignition make sure have full air press brake pedal hold for bout 30 seconds or so then start truck also how is the engine brake working on the truck . When u lift up brake pedal should hear small click from bottom possibly one of switches is bad either brake per or handle switch for cruise
     
    nasriza, Aug 21, 2014
    nasriza, Aug 21, 2014
    #13
  5. Aug 21, 2014 #14
    Pmracing

    Pmracing Road Train Member

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    Arlington Heights, IL
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    Today the cruise did not work initially. After several off/on cycles the cruise decided to work. So I never shut the truck off till I was home parked. The cruise worked the entire time.

    The engine brake is working well in all 4 modes.

    Mikeeee
     
    Pmracing, Aug 21, 2014
    Pmracing, Aug 21, 2014
    #14
  7. Oct 8, 2014 #15
    monahpor

    monahpor Bobtail Member

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    Try to press brake pedal for 4 seconds after engine start, it will enable cruise control.
     
    monahpor, Oct 8, 2014
    monahpor, Oct 8, 2014
    #15
  8. Oct 8, 2014 #16
    Pmracing

    Pmracing Road Train Member

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    Thanks, I will give that a try today.

    Mikeeee
     
    Pmracing, Oct 8, 2014
    Pmracing, Oct 8, 2014
    #16
  9. Oct 10, 2014 #17
    monahpor

    monahpor Bobtail Member

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    What's result? Did it work?
     
    monahpor, Oct 10, 2014
    monahpor, Oct 10, 2014
    #17
  10. Oct 10, 2014 #18
    Pmracing

    Pmracing Road Train Member

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    The next day I tried it and it worked, so I did not shut the truck off the whole day. It was a long drive day for me compared to my usual local work.

    This morning it did not work, but I only did a light press. At my first stop I cycled the ignition when checking into shipping and tried again with a half press. It worked!

    So I did not shut the truck off again! hehehe

    But checking into the rail yard at the end of today's work it is required to shut off the truck. When I dropped the trailer I did the full startup routine and had cruise for the ride home! But it was stop and go traffic all the way...

    I have hope though! Thanks!

    Mikeeee
     
    Pmracing, Oct 10, 2014
    Pmracing, Oct 10, 2014
    #18
  11. Oct 20, 2014 #19
    Pmracing

    Pmracing Road Train Member

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    Arlington Heights, IL
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    Holding the break has been working consistantly. Thanks!

    Mikeeee
     
    Pmracing, Oct 20, 2014
    Pmracing, Oct 20, 2014
    #19
  12. Oct 25, 2014 #20
    bradi

    bradi Bobtail Member

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    Jul 3, 2011
    Kingsville, Ontario
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    I had a similar problem with my Volvo.
    Try steering tilt with cruise on. If it disengages then its a bad cruse wire in the steering column or near the cruse control lever.
     
    bradi, Oct 25, 2014
    bradi, Oct 25, 2014
    #20
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