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Humming noise

Discussion in '5th Gen 4Runners (2010+)' started by orlandoamaral, Feb 25, 2021.

  1. Feb 25, 2021 at 10:37 AM
    #1
    orlandoamaral

    orlandoamaral [OP] New Member

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    Hello everyone!

    I'm kinda new here but a Toyota fan for a while, I've gave up on my 2014 Tacoma and bought a 2020 4Runner six months ago, so far the vehicle has been really good and I'm very happy with it, however a few weeks ago I started noticing a humming noise while driving it, I thought it could be caused by the really low temperatures where I live in Canada -35º C (-31º F) so I waited to the weather to improve but nothing is changed.
    It's a very annoying sound that seems to be coming from the drive train as I notice a change on the frequency of the noise as I change the speed. I can also feel in my feet a little vibration, it's not major but I can tell something is not right.
    What it's really frustrating is that it has only 8000 Km and I've never experienced nothing like this, specially in a Toyota.
    Has anyone here seen or experienced anything like that? Thoughts?

    Thanks,

    Orlando
     
  2. Feb 25, 2021 at 10:53 AM
    #2
    captsolo

    captsolo New Member

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    nassau bahamas
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    I'd take it to a Toyota dealer and get the problem diagnosed. It could be the differential and the extreme colds where you are. Could also have to do with the drive shaft (a bearing noise/failing)?

    I have a 2005 4runner with 150,000 miles and drive like a dream-like when it was new off dealer's lot. I've looked at the driveshaft (everything tight) and changed the gear oil in the differential. I have 2WD.

    Hoping for another 150,000 trouble-free miles.
     
  3. Feb 25, 2021 at 11:05 AM
    #3
    McSpazatron

    McSpazatron New Member

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    Is yours 4x4? Sounds like what Im going to have to deal with as well. Humming is one way to describe it. Or like the sound of mud terrain tires. Mine started making the sound the day I brought it home at about 60-80 miles on the odo.

    Seems like it may be the needle bearing in the front differential as there is a TSB regarding this. If the noise goes away when you engage 4wd, then it points to the needle bearing.

    Mine isnt making the noise anymore ever since the temps rose to the mid 30s F
     
  4. Feb 25, 2021 at 12:14 PM
    #4
    orlandoamaral

    orlandoamaral [OP] New Member

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    Thanks for the reply guys, mine is a SR5 Premium 4X4. I took it to the dealer this morning and I'm waiting to hear back from them, I told them I was having this issue on the first oil change and was advised to wait for the weather to get warmer, which I did but still not convinced that this is weather related. Now that you mentioned, it does get better when I engage 4X4, but I can still hear. Do we have access to the TSB's or just the dealers? I'll let you know what my dealer comes up with.

    Orlando
     
  5. Feb 25, 2021 at 12:21 PM
    #5
    Matt83

    Matt83 New Member

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    Northeast
  6. Feb 25, 2021 at 1:15 PM
    #6
    orlandoamaral

    orlandoamaral [OP] New Member

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  7. Feb 25, 2021 at 7:49 PM
    #7
    orlandoamaral

    orlandoamaral [OP] New Member

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    Guys,

    I wanted to let you know that I went to get my 4Runner back from the dealer and the Tech couldn't hear the noise, I showed them the TSB on the link above shared by Matt83, I even spoke with the tech and he said that he couldn't hear when he drove but that problem is kind of common to happen, but they wouldn't be able to replace it since they couldn't hear/identify anything.
    It sucks because it's a intermittent problem and it seems to happen more often in colder temperatures. I was told to go back should the noise appear again. I was looking at other 4Runner forums and there are quite a few owners with the same issue, it's clearly a design flaw on the front differential (needle bearing). Apparently there's a back order for this part as well, I don't care I'll bug them until I get this fixed, this noise is driving me crazy and I don't even drive it so much, it's my wife's ride. :)

    Thread on the other forum about the same issue:
     
  8. Feb 26, 2021 at 12:34 AM
    #8
    thirdyota

    thirdyota New Member

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    There are about a million threads on this between 4Runners.com and TacomaWorld.com

    Has been an issue since about 2005 I believe.

    Mine had this issue and I replaced the needle bearing with the ECGS bushing. It seems to be the only reliable fix.
     
  9. Feb 26, 2021 at 4:58 AM
    #9
    DGP1961

    DGP1961 New Member

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    Exactly what is the needle bearing?
     
  10. Feb 26, 2021 at 7:31 AM
    #10
    McSpazatron

    McSpazatron New Member

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    Since mine seems to have gotten quieter as things are warming up, I’ll be patient until it’s making the sound 100percennt. I still have the luxury of a full three years warranty (or does this fall under 5?).

    That said, it doesnt sound like noise leads to any serious problems, so risk of waiting is low.
     
  11. Apr 7, 2021 at 2:04 PM
    #11
    Lab43

    Lab43 New Member

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    I have a 2019 SR5. It makes a weird hooting noise that’s usually more noticeable at about 40-60 kilometres an hour. I can’t tell exactly where it’s coming from. At first I thought it was the front passenger side, but now I’m not sure. It’s intermittent. Sometimes I don’t hear it at all. I thought it was something to do with wind noise on something, but now I’m worried it’s something more serious. Really annoying. I’m not close to a dealer to get it checked out.
     

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