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Rear Differential Leaking on my 3rd gen 2018 Tundra same as my 2017 Tacoma

Discussion in '3rd Gen Tundras (2014+)' started by OR18TRD, Jun 28, 2019.

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Year/leak/no leak

  1. 2007-2013 leak

    0 vote(s)
    0.0%
  2. 2007-2013 no leak

    16 vote(s)
    11.3%
  3. 2014/15 leak

    8 vote(s)
    5.7%
  4. 2014/15 no leak

    15 vote(s)
    10.6%
  5. 2016/17 leak

    18 vote(s)
    12.8%
  6. 2016/17 no leak

    18 vote(s)
    12.8%
  7. 2018 leak

    34 vote(s)
    24.1%
  8. 2018 no leak

    13 vote(s)
    9.2%
  9. 2019 leak

    6 vote(s)
    4.3%
  10. 2019 no leak

    13 vote(s)
    9.2%
  11. Leaked and was fixed

    2 vote(s)
    1.4%
  12. Leaking was not fixed told to keep an eye on it.

    7 vote(s)
    5.0%
  13. Leaked and was retorqued

    1 vote(s)
    0.7%
  14. Miles when leak started 0-2500

    1 vote(s)
    0.7%
  15. 2501-5000

    1 vote(s)
    0.7%
  16. 5001-7500

    5 vote(s)
    3.5%
  17. 7501-10000

    8 vote(s)
    5.7%
  18. 10000-15000

    10 vote(s)
    7.1%
  19. 15000+

    10 vote(s)
    7.1%
  20. 2020 leak

    0 vote(s)
    0.0%
Multiple votes are allowed.
  1. Aug 10, 2019 at 11:00 PM
    #331
    Boosted4runner

    Boosted4runner Join the NRA please.

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    I didn’t read through the 15 pages of this thread, but is the consensus that the machined face of the axle tube/pumpkin where the 3rd bolts up isn’t flush/symmetric?
    I find that extremely hard to believe....but if a correctly applied bead of RTV isn’t working, it might be the case.

    Eta - has anyone yanked their own 3rd and RTV’d themselves to see if it wasn’t a 20yr old Monday morning Toy tech service failure?
     
    OR18TRD [OP] and Watt maker like this.
  2. Aug 10, 2019 at 11:06 PM
    #332
    Boosted4runner

    Boosted4runner Join the NRA please.

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    In my opinion, the RTV/seal should be able to withstand waaaaaaay higher pressures than any type of breather.
    Even if the breather was clogged, the breather-to-tube connection should blow off the clamp before RTV giving way around the 3rd.

    If there was any type of significant/harsh driveline force (supercharger, 12” lift with severe driveline angle that wasn’t corrected properly)....might make more sense.
    But not stock. Weird.
     
    Last edited: Aug 10, 2019
    OR18TRD [OP], Watt maker and 15whtrd like this.
  3. Aug 12, 2019 at 6:55 PM
    #333
    phabej

    phabej New Member

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    Crap. Just checked and it's leaking! This sucks balls.. I'm taking the truck in tomorrow to get my free oil change Toyota care maintenance so I'll ask them to look. I'm sure they'll just reseal it. 10k miles only. And I thought my old Chevy was bad. I guess not that far apart now.

    :mad:

    IMG_20190812_184926.jpg
    IMG_20190812_184900.jpg
     
    OR18TRD [OP] and SiberianTundra like this.
  4. Aug 12, 2019 at 7:36 PM
    #334
    SiberianTundra

    SiberianTundra I heard Unicorns get horrible MPG

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    I wonder if region has anything to do with it. Like salt and such.
     
  5. Aug 12, 2019 at 8:26 PM
    #335
    phabej

    phabej New Member

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    No salt here. Panda and I are in Portland area. Just rain water
     
    OR18TRD [OP] and SiberianTundra like this.
  6. Aug 12, 2019 at 8:39 PM
    #336
    SiberianTundra

    SiberianTundra I heard Unicorns get horrible MPG

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    I am at around 5300 miles and dry as I posted before. But we will see after 10k
     
    OR18TRD [OP] likes this.
  7. Aug 13, 2019 at 2:54 AM
    #337
    ZPMAN

    ZPMAN 2nd place is the 1st looser

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    4" lift, 35s, Magnuson Supercharger
    Has anyone noticed that it is all trucks with about 10 to 20 thousand miles and brand new?
     
  8. Aug 13, 2019 at 3:57 AM
    #338
    preacher35

    preacher35 RIGHTEOUS MEMBER

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    Yes, I'm noticing a trend. And my 2018 has 10k on the clock and, of course, the same diff oil seepage. Not worried about it though. My neighbor just purchased a 2019 and we are keeping an eye on his for the same issue.
     
    OR18TRD [OP] likes this.
  9. Aug 13, 2019 at 5:40 AM
    #339
    phabej

    phabej New Member

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    It's not about the worrying as it should never be doing this at 10k, maybe at 80-90k.
     
    OR18TRD [OP] likes this.
  10. Aug 13, 2019 at 3:34 PM
    #340
    phabej

    phabej New Member

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    Ok stealership said no fix, as it's not actively leaking, a seep is a slow leak it's it not. I said bs. No new truck on the lot does that and not at 10k. So no option on fixing this seeping except to call Toyota and see what kind of bs they have to say about it.
     
    OR18TRD [OP] and TTund16 like this.
  11. Aug 13, 2019 at 3:54 PM
    #341
    Moon Puppy

    Moon Puppy New Member

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    It amazes me the inconsistency between dealer services.
     
  12. Aug 13, 2019 at 3:56 PM
    #342
    phabej

    phabej New Member

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    I will call another Toyota dealership. The ones in the lot are spotless! Such bs it maybe a different service advisor.

    I hate to have to drive 30+ miles to get it looked at somewhere else.
     
    OR18TRD [OP] likes this.
  13. Aug 13, 2019 at 3:59 PM
    #343
    Shaggie13

    Shaggie13 New Member

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    Fifteen52 wheels, rolling on tires.
    Yeah. That is BS. Like I said my dealership here looked at it and ordered a new gasket no questions asked, all under warranty. I have 20K miles.
     
    OR18TRD [OP] and ryanwgregg like this.
  14. Aug 13, 2019 at 5:03 PM
    #344
    phabej

    phabej New Member

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    I called Toyota of America. Got a case number, manager will call me tomorrow and we will go from there. They asked for dealership and service advisor name.
     
  15. Aug 13, 2019 at 7:43 PM
    #345
    preacher35

    preacher35 RIGHTEOUS MEMBER

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    No, I'm not going to worry about it. I am certainly not going to get angry about it, as it seems that you are. This is my second Toyota (first was a 4Runner that went to 180k with no issues other than A/C evap coil), and so far I have been EXTREMELY pleased with them. So, one day, when I need to take it in for something ancillary, I will have them nip this problem in the bud. No big deal.
     
    Watt maker and SiberianTundra like this.
  16. Aug 13, 2019 at 8:32 PM
    #346
    phabej

    phabej New Member

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    Nope I just feel that It's a new truck let me have 36k before crap like this happens. Maybe your don't care, that's your opinion, everyone else who feels that quality should be better has there own opinion.

    I didn't buy a used truck, did you? Obviously 40-50k is chump change for you.
     
    OR18TRD [OP] and TTund16 like this.
  17. Aug 13, 2019 at 8:39 PM
    #347
    JH5370

    JH5370 Member

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    I just checked and mine is seeping as others have posted. I have just under 25k miles. I’m taking my truck in for the last Toyota care service so I will see if I can get them to do something about it.
     
    OR18TRD [OP] likes this.
  18. Aug 13, 2019 at 8:52 PM
    #348
    preacher35

    preacher35 RIGHTEOUS MEMBER

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    No, it's not chump change and never suggested that it was. What I am saying is that you could probably drive your Tundra 150k miles and NEVER have an issue with that tiny amount of seepage. I do not think that Toyota intentionally caused this issue but I am confident that they will correct it. Thus, I am NOT worried about it. When my 4Runner began developing cracks in the dash at 100k miles, Toyota replaced my entire dash free of charge. That's something that I know damned well Ford, Chevy, Dodge would NEVER do. So, I love my Tundra and I love Toyota. Maybe you'd be happier in a Nissan?
     
    Moon Puppy and Watt maker like this.
  19. Aug 13, 2019 at 9:02 PM
    #349
    Levidale08

    Levidale08 New Member

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    Well mine started at about 10,000. I’m at 40,000 and its gone. Y’all worry too much.
     
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  20. Aug 13, 2019 at 9:02 PM
    #350
    phabej

    phabej New Member

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    again let me repeat you may not care about the seepage but I do it's a new vehicle it should last longer than that before it starts seeping. I don't care if it can run until 300,000 miles but that's not the point, the point is this shouldn't be occurring in the first place. I'm sure if your cam tower started leaking you would be complaining about it too or is it just a leak?

    tell that to all the people petition against the camp tower leak. It's just a leak and you drive it without any issues right
     
    OR18TRD [OP] likes this.
  21. Aug 13, 2019 at 9:07 PM
    #351
    phabej

    phabej New Member

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    Ha new ones on the lot don't leak, explain that.
     
  22. Aug 13, 2019 at 9:25 PM
    #352
    Levidale08

    Levidale08 New Member

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    Because the gears are not moving
     
  23. Aug 13, 2019 at 9:25 PM
    #353
    preacher35

    preacher35 RIGHTEOUS MEMBER

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    Well, my cam tower might start leaking and it might not. My Tundra might also be hit by an asteroid, or it might not. But I'm not going to worry about it. I know that Toyota will take care of any cam tower leak should that occur, as again, I don't think they intentionally planned that to happen. Oh, and I understand your "point". But, I'm not worried about that either. As for the new trucks on the lot not having the seepage: maybe they resolved the problem (which would make your anger on this issue moot); maybe the new ones on the lot require a few thousand miles for the issue to appear. Again, I am NOT WORRIED ABOUT IT. In fact, I would happily purchase a new 2019 Tundra with the current knowledge that a diff seepage and/or cam tower leak might occur. I say this because I love the Tundra and have confidence that Toyota will repair these issues if they become issues. I would NEVER say that about the competition. I've owned GM, Ford and Nissan and have had ridiculous issues with all three. I will reiterate to you: Maybe you will be happier in a Nissan.
     
    Luckydog likes this.
  24. Aug 13, 2019 at 9:50 PM
    #354
    aggie_tundra

    aggie_tundra New Member

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    I took mine in for 25,000 oil change and mentioned the leak. I had to actually go back there and point it out on the rear diff because they “couldn’t see it” :rolleyes:
     
    OR18TRD [OP] likes this.
  25. Aug 13, 2019 at 10:10 PM
    #355
    JH5370

    JH5370 Member

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    Did they do anything about it?
     
  26. Aug 13, 2019 at 10:28 PM
    #356
    TTund16

    TTund16 New Member

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    should a new(er) car seep?
    NO

    However, some seeps can eventually stop (I've seen that in older cars) and some very minor seeps will not cause any issues for many many years ...

    If you think you can live with that and don't want the risk of fixing it, at least take it to the dealer before the warranty is over and document the leak. In that case if it got real bad you can ask them to fix it later.
     
    OR18TRD [OP] likes this.
  27. Aug 13, 2019 at 11:04 PM
    #357
    aggie_tundra

    aggie_tundra New Member

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    No I just got it on record that it has a leak. I didn’t have time for the fix that day
     
    JH5370 and OR18TRD [OP] like this.
  28. Aug 14, 2019 at 3:44 AM
    #358
    Dano8855

    Dano8855 New Member

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    I've noticed that some repairs are with sealant and mine was repaired by replacing the gasket? I personally think replacing the gasket is the correct way to repair this. What do you think? Would you be satisfied with a sealant repair?
     
  29. Aug 14, 2019 at 6:30 AM
    #359
    phabej

    phabej New Member

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    and? So we are saying Toyota has seepage is acceptable if someone owns it and drive sit off the lot? My problem is not that its seeping, it's that the Toyota dealership i went just wants to keep an eye on it despite it being very obviously there's multiple points of seepage in the rear and front between bolts.


    This is like buying a new home and say it's okay that your toilet ring leaks onto your nice hardwood floor or your new roof has a small leak and the mfg says it's OK we'll just keep an eye on it.. That's Unacceptable.


    I will wait for Toyota to call me back and we'll figure it out.
     
    OR18TRD [OP] likes this.
  30. Aug 14, 2019 at 8:24 AM
    #360
    preacher35

    preacher35 RIGHTEOUS MEMBER

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    Well, I do not think that is a very good analogy. My diff seepage is not "ruining" anything like a "nice hardwood floor". In fact, it's not ruining ANYTHING at all. And when you say that it is "unacceptable", what exactly do you mean? Are you saying that you want to return your Tundra for a full money back refund? Are you saying you want to blow it up? Are you saying that the engineers at Toyota should be killed for their incompetence? Sheesh! Get the damned thing fixed and move on with your life already! If you don't want your truck, sell it already! Otherwise, your truck will be fine. You will be fine.... well, unless you have a heart attack from raging over what is acceptable and unacceptable. Look, you've purchased a damned nice truck. Yes, it sucks that it cannot be an absolutely perfect, flawless gem of a machine. But that's why they give you a warranty. So relax, Toyota will take care of it. BTW, you still have not responded my suggestion that you possibly switch to a Nissan. What gives?
     
    viha22, Blueknights75 and ZPMAN like this.

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