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Humming/buzzing from engine after turning it off

Discussion in '2.5 Gen Tundras (2014-2021)' started by 996scott, May 2, 2017.

  1. May 2, 2017 at 1:00 PM
    #1
    996scott

    996scott [OP] New Member

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    So I have noticed on a few occasions, not all, after pulling into the garage and turning off the engine I hear a buzzing or humming coming from the engine. Sometimes it lasts only 2-3 seconds and then quits and once or twice it seemed to last 6-7 seconds. Kind of wonder if it is the fuel pump? there's never enough time to open the hood and look. Anyone notice this? I have a '17 Limited with only 900 miles on it.
     
  2. May 2, 2017 at 1:02 PM
    #2
    T-Rex266

    T-Rex266 Elon approved Staff Member

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    By the fuel tank? Normal. Self testing of the evaporate system.
     
  3. May 2, 2017 at 1:12 PM
    #3
    joonbug

    joonbug °°°°°°°°°°

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    And sometimes you'll hear it in the middle of the night too. Don't freak out like I did.
     
  4. May 2, 2017 at 1:19 PM
    #4
    xj2202009

    xj2202009 New Member

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    looking to replace factory Radio with a pioneer avix588bhs
    Roflmao..
     
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  5. May 2, 2017 at 1:27 PM
    #5
    Bear

    Bear Fargin' Iceholes

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    I actually make the sound in my head now when I shut down. Vrrrrrbbbb
     
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  6. May 2, 2017 at 2:22 PM
    #6
    BlueFalconActual

    BlueFalconActual Field Day Inspector Extraordinaire

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    Normal.

    En español:
    Normal.
     
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  7. May 2, 2017 at 2:22 PM
    #7
    T-Rex266

    T-Rex266 Elon approved Staff Member

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    That one was actually coming from under your bed.
     
  8. May 2, 2017 at 2:23 PM
    #8
    BlueFalconActual

    BlueFalconActual Field Day Inspector Extraordinaire

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    Or sock drawer
     
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  9. May 2, 2017 at 2:24 PM
    #9
    T-Rex266

    T-Rex266 Elon approved Staff Member

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    I see what u did thur
     
  10. May 2, 2017 at 2:45 PM
    #10
    TheBeast

    TheBeast The Beach

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    I can see @joonbug clearing the house with his 1911 in his drawers :0
     
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  11. May 2, 2017 at 3:10 PM
    #11
    996scott

    996scott [OP] New Member

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    Haha.. as long as that humming sound isn't coming from the wife's night stand drawer ;)
     
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  12. May 4, 2017 at 6:48 PM
    #12
    mattc

    mattc New Member

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    On a serious note (sorry) it's the air injection system pumping some fresh air into the exhaust to help emissions. I'm new to my 2016 and thought it was a bit strange at first too.
     

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