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1999 T300 horn selector switch

Discussion in 'Kenworth Forum' started by Combine Pilot, Mar 25, 2016.

  1. Mar 25, 2016 #1
    Combine Pilot

    Combine Pilot Bobtail Member

    3
    0
    Mar 24, 2016
    0
    We just got this truck and i can't get the air horns to work. There is a switch in the dash labeled "Horns" with air and electric as choices but only the electric horn will sound no matter what position the switch is in. Fuses all check out good. Can anyone help me out with somethings to check or tell me if i'm missing something?

    Thanks.
     
    Combine Pilot, Mar 25, 2016
    Combine Pilot, Mar 25, 2016
    #1
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  3. Apr 3, 2016 #2
    blairandgretchen

    blairandgretchen Road Train Member

    12,048
    60,659
    Dec 9, 2011
    South west Missouri
    0
    I'd pull the switch out and check for continuity in the circuit - may be a faulty switch.

    If button to switch to city horn is good, and button to switch to air horn is not, then problem lies down stream from the switch?
     
    blairandgretchen, Apr 3, 2016
    blairandgretchen, Apr 3, 2016
    #2
  4. May 1, 2016 #3
    KWmech

    KWmech Light Load Member

    141
    40
    Jun 16, 2012
    0
    The city horn will work in both positions. You need to take the dash apart and find the solenoid that controls the air supply to the horns
     
    KWmech, May 1, 2016
    KWmech, May 1, 2016
    #3
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