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What is the usual cause for a noise/sound like dogs howling?

Discussion in 'Gen 1 Prius Plug-in 2012-2015' started by ThatOddMan, Jul 13, 2020.

  1. ThatOddMan

    ThatOddMan Junior Member

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    One thing I can be sure is that the noise or sound is from the driver side, either front or back.

    The sound is like dogs howling. I looked on my left and right while driving on the freeway, around 70-75mp on cruise control. I listened closely to where it is coming from but the sound seems to follow me. But it did went away for some time.

    However, I heard it again and this time around 20-25 miles away from where I heard it. I pushed the button for closing the windows just to be sure those are closed tightly. The sound was still there.

    The sound was not there at lower speed.

    I got home and checked the bottom of the car to be sure nothing is being dragged.

    Nothing there to my relief.

    I drove around 80 miles today, round trip.

    My PiP, over 150k odo mileage. does have the anti-roll bar/TRD rear sway bar installed.

    Any ideas what caused the howling sound?
     
    #1 ThatOddMan, Jul 13, 2020
  2. Potorap

    Potorap Active Member

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    My Thought is wheel bearing.
     
    #2 Potorap, Jul 13, 2020
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  3. bisco

    bisco cookie crumbler

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    same
     
    #3 bisco, Jul 13, 2020
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  4. Leadfoot J. McCoalroller

    Leadfoot J. McCoalroller Senior Member

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    Wheel bearings. They start silent, proceed through dog and usually wind up at WWII bomber drone before they come apart.
     
    #4 Leadfoot J. McCoalroller, Jul 13, 2020
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  5. ThatOddMan

    ThatOddMan Junior Member

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    So would that be all four of them since the maintenance records does not show those four were replaced?

    I am assuming those four are already near its lifespan.

    Thank you.
     
    #5 ThatOddMan, Jul 14, 2020
  6. Leadfoot J. McCoalroller

    Leadfoot J. McCoalroller Senior Member

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    That's certainly possible. I don't think I'd discourage you from just doing all 4 on such a high-miles car. They can be ventriloquists anyway, you swear it's the left rear and it turns out to be a different one. Do them all and there's no labor time lost on the hunt and you get a silent car after.
     
    #6 Leadfoot J. McCoalroller, Jul 14, 2020
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