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Air intake whistle

Discussion in '5th Gen 4Runners (2010+)' started by abonczek, Jun 23, 2019.

  1. Jun 23, 2019 at 10:30 AM
    #1
    abonczek

    abonczek [OP] New Member

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    Bug deflector TRD Grill
    Just purchased a silver 2017 4Runner SR5. Already put on a couple things;
    Bug deflector
    TRD PRO grill
    more to come later

    I'm having an issue where there is a whistle coming from the air intake plenum "surge box" when I hit around 2000-2500 RPM in any gear and in park/neutral. Took it to the Toyota dealership around here and they gave me the oldest tech possible that couldn't hear the noise (Everyone else hears it). The person I talked to on the phone there said she never heard of that kind of issue. Just want to resolve it.

    Has anyone heard of this and know how to resolve this and
    could anyone direct me to the correct thread for this?
     
  2. Jun 23, 2019 at 12:25 PM
    #2
    Charlievee

    Charlievee New Member

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    What is a "surge box"?
     
  3. Jun 23, 2019 at 12:35 PM
    #3
    abonczek

    abonczek [OP] New Member

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    After the throttle body
    On eBay I found it also called an upper air intake manifold.
    Sits right on top of the engine.
    Part number: 17109-31181
    Some people have said it could be a crack in the plastic but I would've thought the would turn on the check engine light.
    I have gone around it with carb cleaner to see if it would change RPMs to find a leak and nothing has done the trick.

    Screen Shot 2019-06-23 at 3.30.18 PM.jpg
     
  4. Jun 23, 2019 at 12:38 PM
    #4
    Charlievee

    Charlievee New Member

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  5. Jun 23, 2019 at 12:49 PM
    #5
    abonczek

    abonczek [OP] New Member

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    Great I will try this! Another issue is its on the underside of it I believe if it is leaking.
    Apologies for the confusion on the part.
     
  6. Jun 23, 2019 at 1:05 PM
    #6
    Charlievee

    Charlievee New Member

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    Should be able to narrow it down fairly well. If it's under, you may need to pull it, inspect and install with new gasket.
     
  7. Jun 23, 2019 at 1:11 PM
    #7
    abonczek

    abonczek [OP] New Member

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    Awesome! Thank you for the input!
    Is there only one gasket like this one or another metal one under it?

    Screen Shot 2019-06-23 at 4.10.55 PM.jpg
     
  8. Jun 23, 2019 at 1:24 PM
    #8
    Charlievee

    Charlievee New Member

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    Not sure about the yota, but a upper intake kit should have everything needed and only costs a little more then a single gasket.
     
    Last edited: Jun 23, 2019
    abonczek [OP] likes this.
  9. Jun 23, 2019 at 1:36 PM
    #9
    Charlievee

    Charlievee New Member

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  10. Jun 24, 2019 at 6:04 PM
    #10
    abonczek

    abonczek [OP] New Member

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    Yea I will definitely check that out thanks!
     
  11. Sep 10, 2021 at 9:05 PM
    #11
    FeelGod

    FeelGod New Member

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    Did you ever solve the whistle? I am having the issue as well.
     
  12. Sep 10, 2021 at 10:02 PM
    #12
    whippersnapper02

    whippersnapper02 New Member

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    Video of the noise?
     
  13. Sep 11, 2021 at 4:23 AM
    #13
    Bgdv1

    Bgdv1 New Member

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    Bilstein 5100's, AR wheels, 275 70 17 Cooper AT3, Airlift bags, Powerstop brakes/rotors, 12voltsolutions remote start, tinted windows.
    Did previous owner install a throttle body spacer? That could be your noise maker
     

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