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Airhorn is going off on its own, advice on what's going on with this?

Discussion in 'Volvo Forum' started by Dave2014, Feb 13, 2016.

Page 1 of 2
  1. Feb 13, 2016 #1
    Dave2014

    Dave2014 Bobtail Member

    24
    1
    Jan 20, 2014
    0
    Hi all,

    So the other night, i'm on the road and my airhorn starts going off non-stop, scared the living crap out of me. It wouldn't stop, so I took out the fuse. Couple days later, when I got back on the road, I put it back in, fine for a few minutes. And the #### thing starts going off again. Oh and i've got a '07 Volvo 780.

    Can anyone tell me what could be the problem? Is it in the air bank or fuse issue or what?

    Any advice, comment that could help me out would be greatly appreciated guys!!!

    Thanks a lot!
     
    Dave2014, Feb 13, 2016
    Dave2014, Feb 13, 2016
    #1
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  3. Feb 13, 2016 #2
    Pedigreed Bulldog

    Pedigreed Bulldog Road Train Member

    7,737
    14,422
    May 7, 2011
    0
    Wait...your air horn can be shut off by pulling a fuse? Since when do AIR horns use electric power? :confused:
     
    Pedigreed Bulldog, Feb 13, 2016
    Pedigreed Bulldog, Feb 13, 2016
    #2
    Ruthless and Riprap Thank this.
  4. Feb 13, 2016 #3
    MidWest_MacDaddy

    MidWest_MacDaddy Road Train Member

    11,284
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    Feb 21, 2015
    South Carolina
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    It's demon possessed… Find an Priest.
     
    MidWest_MacDaddy, Feb 13, 2016
    MidWest_MacDaddy, Feb 13, 2016
    #3
    Snailexpress, Puppage and mhyn Thank this.
  5. Feb 13, 2016 #4
    MidWest_MacDaddy

    MidWest_MacDaddy Road Train Member

    11,284
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    Feb 21, 2015
    South Carolina
    0
    My air horn is on the steering wheel like a regular car horn... I assume it trips some electrical switch that then triggers the air release to blow the horn... It's not something hanging down.

    Which is kind of sad when kids give me the pumping arm motion to blow my air horn and I have nothing to pull... Just push the steering wheel... LOL
     
    MidWest_MacDaddy, Feb 13, 2016
    MidWest_MacDaddy, Feb 13, 2016
    #4
    ZhenyaP1991, tucker and Bean Jr. Thank this.
  7. Feb 13, 2016 #5
    Oor

    Oor Road Train Member

    1,374
    3,538
    Jan 11, 2012
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    Ever since an engineer figured out it would be easier/cheaper to activate it with a solenoid switch rather than running a mechanical cable all that way.

    And that's probably the problem. Bad switch.
     
    Oor, Feb 13, 2016
    Oor, Feb 13, 2016
    #5
    MidWest_MacDaddy and 12 ga Thank this.
  8. Feb 13, 2016 #6
    Oor

    Oor Road Train Member

    1,374
    3,538
    Jan 11, 2012
    0
    Fake it.

    It'll be better for your self-esteem.
     
    Oor, Feb 13, 2016
    Oor, Feb 13, 2016
    #6
    MidWest_MacDaddy and skeeterbilt cfh Thank this.
  9. Feb 13, 2016 #7
    Bean Jr.

    Bean Jr. Road Train Member

    5,537
    9,875
    Mar 30, 2014
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    Get a truck that has a pull for the valve. Problem solved!
     
    Bean Jr., Feb 13, 2016
    Bean Jr., Feb 13, 2016
    #7
  10. Feb 13, 2016 #8
    12 ga

    12 ga THE VIEW FROM MY OFFICE

    1,568
    1,789
    Oct 21, 2013
    Central Michigan
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    Some truck brands have done that since back in the 70's
     
    12 ga, Feb 13, 2016
    12 ga, Feb 13, 2016
    #8
  11. Feb 13, 2016 #9
    Bean Jr.

    Bean Jr. Road Train Member

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    He clearly hasn't had the misfortune to drive that brand.
     
    Bean Jr., Feb 13, 2016
    Bean Jr., Feb 13, 2016
    #9
  12. Feb 13, 2016 #10
    12 ga

    12 ga THE VIEW FROM MY OFFICE

    1,568
    1,789
    Oct 21, 2013
    Central Michigan
    0
    Actually I prefer the electric activated versions, it is right there on the steering wheel, a lot faster to get to. The KW 9 that I drive now is a pretty long reach and I'm six foot, always thought the center of the cab almost to the windshield was not real smart.
     
    12 ga, Feb 13, 2016
    12 ga, Feb 13, 2016
    #10
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