Whirring noise

Discussion in 'Peterbilt Forum' started by Azzitude, Oct 5, 2010.

  1. Azzitude

    Azzitude Bobtail Member

    29
    0
    Sep 26, 2010
    Conneaut, OH
    0
    ok, I have a whirring, whisling sucking sound in the cab that starts at idle ...radio off and no CB installed yet.....best part is that that sound keeps going if I shut down the truck and remove the key while its in the middle of it ....


    this sound comes and goes in about 15 second intervals at idle .... whirring up and down in pitch.:biggrin_25510:


    04 379X
     
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  3. jaysolomon

    jaysolomon Light Load Member

    78
    7
    Sep 17, 2010
    0
    mine did that and it was coming from my CB. I hjave Halaxy DX48T I just start unplugging when i am in for weekend
     
  4. canuck in da truck

    canuck in da truck Road Train Member

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    Aug 6, 2010
    western pa
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  5. Gears

    Gears Trucker Forum STAFF - Gone, But Not Forgotten.

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    3,185
    Aug 20, 2009
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    Major air leak?
     
  6. Azzitude

    Azzitude Bobtail Member

    29
    0
    Sep 26, 2010
    Conneaut, OH
    0
    none of the above .....lol ...lot lizard!!!! NOT
     
  7. Superhauler

    Superhauler TEACHER OF MEN

    12,209
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    Jan 30, 2010
    keep stroking.
    0
    two ways to fix it (ear plugs or turn up the radio):biggrin_2559::biggrin_2559:
     
    gonzo01 Thanks this.
  8. canuck in da truck

    canuck in da truck Road Train Member

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    western pa
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    ok--no lizard--maybe check the heat controls--if they are air operated sometimes they will hiss and make noises --usually when it is colder out tho
     
  9. Azzitude

    Azzitude Bobtail Member

    29
    0
    Sep 26, 2010
    Conneaut, OH
    0
    I'm thinking expansion valve ... it turns out it only happens when the ac is on @ idle ... if I manually turn the fan on the noise never comes ...but when the head pressure gets up there then it squeals like a stuck pig and only inside the cab.
     
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