low air warning buzzer

Discussion in 'Volvo Forum' started by rider2002, Aug 25, 2014.

  1. rider2002

    rider2002 Light Load Member

    70
    7
    Dec 20, 2009
    San Tan Valley, AZ.
    0
    Hi , I have a 2010 780. my secondary low air warnig buzzzer keeps going off, but i,m not losing any air presure. any body have any clues as to what or why this is going on. thanks
     
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  3. Powder Joints

    Powder Joints Subjective Prognosticator

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  4. Bendix Tech Team

    Bendix Tech Team Bobtail Member

    34
    23
    Jul 15, 2014
    0
    i would check to see what pressure the pressure sensor is seeing or if its a mechanical gauge check the air line from the tank to the gauge for kinks, its possible 120psi is being trapped so the gauge doesnt show a loss of pressure but actually is losing pressure.
     
  5. rider2002

    rider2002 Light Load Member

    70
    7
    Dec 20, 2009
    San Tan Valley, AZ.
    0
    Not losing any pressure but gauge reads 0 thats why i get the warning and buzzer. is there a sencer some were.
     
  6. Bendix Tech Team

    Bendix Tech Team Bobtail Member

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    Jul 15, 2014
    0
    depending on the truck brand possibly. some use sensors which read to the BCM and then the dash cluster or some are mechanical(diret air line to gauge in dash) you would have to pull out the gauge and see if you have an air line connected to it.
     
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