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379 Peterbilt Buzzer stays on

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Rick Means, Feb 16, 2019.

  1. Feb 16, 2019 #1
    Rick Means

    Rick Means Bobtail Member

    11
    2
    Feb 16, 2013
    Moore OK
    0
    I have a 1994 379 Peterbilt with a 3406 B cat engine. The Low Air Buzzer stays on, beeping, even when I disconnect both of the low air sensors on the floor. (The low air light goes out even when there really is low air when I disconnect one of the sensors)
    Is there another system making this buzzer go off?
     
    Rick Means, Feb 16, 2019
    Rick Means, Feb 16, 2019
    #1
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  3. Feb 17, 2019 #2
    blairandgretchen

    blairandgretchen Road Train Member

    12,048
    60,659
    Dec 9, 2011
    South west Missouri
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    Low air buzzer stays on

    You’re welcome.

    If it ain’t the sensor - it’s possibly the buzzer itself.

    On a T2000 I had to kill the buzzer (wired into the board), and install another separate one.

    Good luck.
     
    blairandgretchen, Feb 17, 2019
    blairandgretchen, Feb 17, 2019
    #2
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