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Squealing noise from driver's side front

Discussion in '5th Gen 4Runners (2010+)' started by meems4x4, Mar 19, 2019.

  1. Mar 19, 2019 at 11:11 AM
    #1
    meems4x4

    meems4x4 [OP] New Member

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    Hoping someone could give me some advice about a squealing sound coming from the driver's side front region of my '16 4runner:
    • it's a rhythmic high pitched squealing sound in tune with how fast you accelerate
    • seemed to start when the roads were muddy
    • does not happen at idle
    • can happen during acceleration, coasting, and when braking
    • heard best from 5-40 mph (then I assume road/engine noise blocks it after 40)
    • took the driver's side front tire off, cleaned off some mud, didn't really help
    • had my mechanic look at it, he cleaned mud and rust off the calipers (I think...I'm not mechanical myself)
    • I've heard rocks can get stuck somewhere around the brakes, figured the mechanic would have seen this (?)
     
  2. Mar 19, 2019 at 11:15 AM
    #2
    HoBoDanny

    HoBoDanny Dude...

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    Wheel bearing or break pad wear. :notsure:
     
    jester243, WallyT4R and Savage2ndGen like this.
  3. Mar 19, 2019 at 3:29 PM
    #3
    4Runner_Patrick

    4Runner_Patrick New Member

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    See if it goes away in 4WD? If so probably front differential needle bearing. Happened to my 16 4R at about 20K
     
    WallyT4R likes this.
  4. Mar 19, 2019 at 5:10 PM
    #4
    meems4x4

    meems4x4 [OP] New Member

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    It does happen in 4WD. I should also mention that it sometimes goes away for several hours after I take it through the car wash. I also noticed tonight that if I hit a big bump, the pitch of the squealing can change.
    To the other response: What should I ask about the wheel bearings? Replace? Clean? The break pads were ok when he checked them.
     
  5. Mar 19, 2019 at 5:37 PM
    #5
    HoBoDanny

    HoBoDanny Dude...

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    RCI Skid Plate CBI Ditch Light Brackets Hankook DynaPro ATM RF10 265 70R17 113T Tires 1.25” Wheel Spacers TPMS Bypass Mod Hydrocarbon Filter Removed Merca decal 2” leveling kit front only Black headlights
    Wheel bearings should be checked for movement if they are bad they should be replaced. If you are taking this to a reputable mechanic he should be able to resolve this issue, if not find a new mechanic.
     
    mrmike7189 and Savage2ndGen like this.
  6. Mar 21, 2019 at 1:48 PM
    #6
    j cat

    j cat New Member

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    spacer lift front 1inch
    since your a mud guy then sure can be the brake pads have to be removed and cleaned .. calipers could stick if its all mucked up.
     
    OvrlandNoob likes this.
  7. May 2, 2019 at 3:09 PM
    #7
    Jmgreen7

    Jmgreen7 New Member

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    Any updates on this? I'm having the same issue. I haven't taken my car off road, and just had it serviced by the dealer. No problems were noted.

    It almost sounds like a chain dragging. It comes and goes, straight or curved roads, accelerating or coasting. No rhyme or reason...
     
    Nick4uk likes this.
  8. May 3, 2019 at 6:17 AM
    #8
    j cat

    j cat New Member

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    spacer lift front 1inch
    grease the drive shafts / yokes . check the CV boots and drive train gear oil .
    any lifts or over sized tires etc..?
     
    Nick4uk likes this.
  9. May 3, 2019 at 1:48 PM
    #9
    OvrlandNoob

    OvrlandNoob New Member

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    Bilstein 6112 and 5160 with Bilstein rear coils. SPC UCA s, TRD Pro wheels, Shrockworks sliders, Nitto Ridge Grapplers 265/70/17
    I had the same issue on my two front tires after driving through a large mud bog. Rocks and mud get trapped between the front discs and the disc cover. I got most of the big rocks out by prying the dust cover away from the disc and the rocks dropped out. I had to take it to a shop to have them remove the discs to clear the rest. Horrible break sounds... This was after taking it to a diy carwash washing away any mud I could see. No problems since. I don't think I will be mud bogging again.
     
    j cat likes this.
  10. Apr 19, 2020 at 6:59 AM
    #10
    Nick4uk

    Nick4uk New Member

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    Hey folks! I've had a 2016 4Runner Limited for about 1 year, and soon after purchasing it I started noticing this very high-pitched noise. It only happens when it's hot outside (a/c on or off) and I've been driving a few hours (running errands, commuting from work, etc.). It is NOT the brakes (had those replaced to make sure), in fact it stops when applying the brakes firmly. I've had it at the dealership a handful of times and they don't know what it is. I mentioned the bearings, but was told it "too risky and expensive" of a guess to repair.

    This is not my video, but it sounds IDENTICAL to this guy's issue. https://www.youtube.com/watch?v=anc4eJsAL6k

    Has anyone had this issue? Or better yet, has anyone solved this issue? Thank you!
     
  11. May 21, 2020 at 6:38 AM
    #11
    Nick4uk

    Nick4uk New Member

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    Any updates or fixes? I'm having the same issue with my '16 4Runner.
     
  12. Jul 7, 2020 at 12:37 PM
    #12
    Nick4uk

    Nick4uk New Member

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    Hey folks, I just wanted to give you a quick update.
    Last week, Toyota replaced my transfer case cap in hopes of stopping the high-pitched squeal. So far...NO SQUEALING! I will let you all know ASAP if it comes back.
     

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