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Rear end noise 5th Gen

Discussion in '5th Gen 4Runners (2010+)' started by 4Runner_Patrick, Mar 30, 2017.

?

Does your 5th gen howl or whine at highway speeds when coasting?

  1. Yes

    21.2%
  2. No

    75.8%
  3. Yes, it was replaced under warranty

    3.0%
  4. No, it was deemed normal and not repaired

    0 vote(s)
    0.0%
  1. Feb 26, 2019 at 7:20 PM
    #31
    t4r_gonzo

    t4r_gonzo TTC #0148

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    funny thing is now it doesnt do it anymore haha
     
  2. Feb 27, 2019 at 4:10 AM
    #32
    DGP1961

    DGP1961 New Member

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    Theoretically needing to change differential fluid at 3 or 4 thousand miles is insanity. Not saying it's not needed just sayin...
     
    4runningMan likes this.
  3. Feb 27, 2019 at 7:55 AM
    #33
    j cat

    j cat New Member

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    spacer lift front 1inch
    on my 2000 GM truck I had to change the front diff 3 times until 11K miles on it. oil was gray color after my 1st oil change when I checked all the fluids.. rear diff looked good but why the front diff ? I did not use 4WD very much . but this is how these things happen .. still have this truck front diff oil still good ..175K on it .
     
  4. Feb 27, 2019 at 8:40 AM
    #34
    DGP1961

    DGP1961 New Member

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    Years ago this was a service practically nobody did and most people still don't today.
     
  5. Feb 28, 2019 at 6:51 AM
    #35
    j cat

    j cat New Member

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    spacer lift front 1inch
    this fluid checking of the drive train fluids is a time consuming issue , so less profit .. just ram the vehicles in and out quickly more profit ..even when a dealership does your oil changes I doubt this will be checked ..
    I was gonna have the dealership do the free oil changes .. I was gonna put white paint stripe on the plugs all..

    Toyota owners manual states check all fluid levels and the drivetrain fluids ..this is free service the first 24 months . NO did not do it because they most likely will DO DAMAGE and not check anything ..even leaks ..
     
  6. Feb 28, 2019 at 5:51 PM
    #36
    hordboy

    hordboy New Member

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    Maybe, maybe not. People worry like crazy about engine break-in and oil changes and whatnot, but the diffs break in too. And there's no filter to catch all the swarf. I think it might be $ well spent if you're keeping the 4R a long time.

     
    j cat likes this.
  7. Mar 7, 2019 at 7:08 AM
    #37
    ROB

    ROB New Member

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    I also have this noise starts at 65 mph and it gets louder when deaccelerate.any solution to this issu
     
  8. Mar 7, 2019 at 8:57 AM
    #38
    ROB

    ROB New Member

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    I change rear diff gear oil 3 times already with Amsoil and no change howling is still present .any ideas
     
  9. Mar 7, 2019 at 2:56 PM
    #39
    j cat

    j cat New Member

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    spacer lift front 1inch
    you may have a bearing issue . the front diff has had bearing failure due to install or the casting of the diff.. have dealership check this out .. some had noise and others vibs etc..
    some also had this issue with very low miles on it .. also lifting the vehicle too much will create this sometimes
     
  10. Mar 7, 2019 at 3:35 PM
    #40
    ROB

    ROB New Member

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    I will schedule appointment with dealer and let them know about front diff bearing thanks for information
     
  11. Mar 7, 2019 at 4:03 PM
    #41
    4runningMan

    4runningMan New Member

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    I have the howling sound that is loud from 65-75mph. If I release the gas pedal it kinda squeaks a little then stops. It's weird. Been there since about 1000 miles.
     
  12. Mar 8, 2019 at 5:50 PM
    #42
    Deadpool

    Deadpool New Member

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    I have the same noise noticed it some time after buying the 4R when I took it in for the free oil change I told them about this and also the sulfur smell when the rear window is down.. they told me the tech didn't hear anything and the smell is from paint on the engine being burned off :frustrated:

    They also stripped the threads on the bolts that hold the skid plate I would advise anyone to stay away from the free oil changes if you plan on keeping the truck
     
  13. Mar 9, 2019 at 6:06 AM
    #43
    j cat

    j cat New Member

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    spacer lift front 1inch
    your warning on the free oil changes is with many members. this is not just Toyota dealerships as I have worked on many vehicles and every vehicle that had oil changes done by quick lubes this was common.. they use powered tools and guess what happens .. also they may loose the bolts and leave only a couple to hold the pan/plastic covers ..

    paint on new vehicle/engine will smell as it breaks in/ hot areas ... esp when the hot weather arrives .
     
    WallyT4R likes this.
  14. Mar 9, 2019 at 7:33 AM
    #44
    WallyT4R

    WallyT4R New Member

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    An this is why I take the time and hassle to now do my own oil changes after the free ones. When I was getting the free ones I would always take the skid plate off myself, drive to the dealer, get the oil change, check their work (they over filled once and had to fix it), drive home, check for leaks, then mount the skid plate myself. Never trust a dealer monkey to do right by your vehicle.

    A dealer monkey is the off the street trained oil change guy, not a factory trained tech
     
  15. Mar 9, 2019 at 1:01 PM
    #45
    j cat

    j cat New Member

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    spacer lift front 1inch
    the dealer monkey is also the floor sweeper ... when I was in high school I was the floor sweeper in my uncles gas station ..
     
    WallyT4R likes this.
  16. Mar 9, 2019 at 2:43 PM
    #46
    Deadpool

    Deadpool New Member

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    You do realize I'm talking about the exhaust gases being sucked back into the cabin right? Hmm I didn't think the engines we painted... nor have I ever smelled it before.....
     
  17. Mar 9, 2019 at 3:33 PM
    #47
    j cat

    j cat New Member

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    spacer lift front 1inch
    the air intake sucks air in from the lower and upper front fenders.. the lower air intake is how the rats get into the air filter HVAC fan box.. I blocked off those openings had to remove wiper arms and the plastic grill then you can see how this can happen. so in traffic it can happen when new .. also if the rear hatch door window is open it will also cause exhaust to get into the vehicle interior..
     
  18. Mar 9, 2019 at 5:04 PM
    #48
    Deadpool

    Deadpool New Member

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    Uuuuuhhhhhhhhhhhhh........ yeah you're right
     

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