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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 14, 2019 at 8:25 AM
    #361
    phabej

    phabej New Member

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    you and your nissan! lol.. You go to Nissan. I'm waiting on TOYOTA to fix it, didn't I say that?
     
  2. Aug 14, 2019 at 8:54 AM
    #362
    preacher35

    preacher35 RIGHTEOUS MEMBER

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    Yes, you said that. But you also said it was "unacceptable".... hence the confusion. And no, I've done my time with Nissans. Never again. Maybe your beef is with your crappy local dealership. My closest dealership is pile of shit too. But I do not blame Toyota for that. Luckily, I found a much better one not too much further away.
     
  3. Aug 14, 2019 at 9:05 AM
    #363
    sbxx312

    sbxx312 New Member

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    I can see it both ways. I can understand being pissed a new truck has issues. Service told me my cam shaft leak on the driver's side was enough to fix and offered to do both sides. I'm at 6000 miles. I'm not going to fix it unless it becomes more significant or it's bad enough to fix at the end of warranty.

    My rear diff is also seeping. Same service manager told me not to worry about it. If/when it gets worse, I'll fix it. I'm not going to worry about it now.

    Should this stuff leak and seep? No. But I believe if it wasn't for the forums, the smaller stuff would go unnoticed with little impact on the reliability or longevity of the Tundra. A lot of warranty work has come from threads like this. There were six guests reading this thread.
     
  4. Aug 14, 2019 at 12:26 PM
    #364
    P-Factor

    P-Factor New Member

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    2018 Limited with 6,372 miles and just starting to show signs of leakage...
    upload_2019-8-14_15-25-9.jpg
     
    OR18TRD [OP] likes this.
  5. Aug 14, 2019 at 12:59 PM
    #365
    JH5370

    JH5370 Member

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    Anyone else getting fluid weeping from the breather also? You can see a little leaking on this side of the diff. The other side is worse.

    IMG_0133.jpg
     
    OR18TRD [OP] likes this.
  6. Aug 14, 2019 at 1:08 PM
    #366
    OR18TRD

    OR18TRD [OP] Pândâ Crëw

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    Suspension: front- Bilsein 6112 set at 1.9”; Rear- bilstein 5160 with maxtrac 1” shackel. Wheels: Method MR308 roost wheels 18x9” +18 offset. Tires: 275/70/18 Goodyear wrangler DuraTrac’s Removed front mudflaps and moved front wheel well liner forward. Bakflip MX4 Tonneau cover Line-x premium bed liner aFe CAI Rear differential breather moved behind taillight Debadged Windows tinted 20% ESP locking long box rear seat storage OEM all weather mats 6 3/4” antenna Coverking leather rear seat cover
    :confused: WTF
    Is it loose?
     
    JH5370 likes this.
  7. Aug 14, 2019 at 4:12 PM
    #367
    Punkinhead

    Punkinhead New Member

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    Haven't read the whole thread, but is anyone's diff actually leaking? All I've seen in the pictures posted is a bit of staining from perhaps a drop and a half of gear oil. Its like some people think the underside of a vehicle should be polished.
     
    viha22, JoshuaA, ZPMAN and 2 others like this.
  8. Aug 14, 2019 at 4:18 PM
    #368
    Moon Puppy

    Moon Puppy New Member

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    Well...yeah.
     
    JoshuaA, OR18TRD [OP] and P-Factor like this.
  9. Aug 14, 2019 at 7:29 PM
    #369
    preacher35

    preacher35 RIGHTEOUS MEMBER

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    Some members' seepage is worse than others, but no, I have not seen or heard of any, on this thread anyway, that are actually dripping on the driveway. Just some "wet spot" seepage on the diff case. A mechanic buddy of mine (whom works on cars for a living) told me that its very possible that the type of gasket used by Toyota, could have simply soaked up oil to the point of minor seepage, until a point where the gasket swells and thus seals the mated diff casing, preventing any further seepage from occurring. It's just a theory, but he said he has seen this before. Regardless, he took a look at mine and said "don't worry about it unless you see it dripping".
     
    OR18TRD [OP] and Watt maker like this.
  10. Aug 14, 2019 at 9:40 PM
    #370
    Tundra$

    Tundra$ My bumper identifies as color matched

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    3/1 readylift, 35x11.5r20, bakflip revolver bed cover, console safe, N-fab side rails, mini antenna, baby car seat, to be continued...
    It’s like 120,000 degrees here in Vegas, no salt obviously and mine appears to be worse than everyone I’ve seen here. I’m thinking the heat helps with the lower viscosity so more seepage ?
     
    SiberianTundra and OR18TRD [OP] like this.
  11. Aug 14, 2019 at 9:49 PM
    #371
    preacher35

    preacher35 RIGHTEOUS MEMBER

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    Can you post a pic?
     
  12. Aug 14, 2019 at 9:57 PM
    #372
    AZBoatHauler

    AZBoatHauler New Member

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    6112 and 5160 w/ CB +2
    I'm in southern AZ... same. I also tow a 6,000 lb boat and trailer regularly. I'm sure that does not help. Coincidently I just changed the fluid in my front and rear diffs before seeing this thread.

    I agree asking the dealer to fix it might cause more harm than putting fresh oil to the correct level every 30-50k. It appears to seep pretty good but does not drip.
     
    OR18TRD [OP] likes this.
  13. Aug 15, 2019 at 3:12 AM
    #373
    OR18TRD

    OR18TRD [OP] Pândâ Crëw

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    Suspension: front- Bilsein 6112 set at 1.9”; Rear- bilstein 5160 with maxtrac 1” shackel. Wheels: Method MR308 roost wheels 18x9” +18 offset. Tires: 275/70/18 Goodyear wrangler DuraTrac’s Removed front mudflaps and moved front wheel well liner forward. Bakflip MX4 Tonneau cover Line-x premium bed liner aFe CAI Rear differential breather moved behind taillight Debadged Windows tinted 20% ESP locking long box rear seat storage OEM all weather mats 6 3/4” antenna Coverking leather rear seat cover
    Toyota recalled 225,000 Tacoma’s last year for this exact “staining” on the rear differential. None of the ones I saw involved in the recall were dripping on the ground yet Toyota stated it was a catastrophic failing part and started to replaced the gaskets.
    Oil should be an internal lubrication not an external display of artistry.
     
    TTund16 likes this.
  14. Aug 15, 2019 at 4:13 AM
    #374
    Tundra$

    Tundra$ My bumper identifies as color matched

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    3/1 readylift, 35x11.5r20, bakflip revolver bed cover, console safe, N-fab side rails, mini antenna, baby car seat, to be continued...
    I did earlier in this thread but here it is.
    Just over 10k miles
    FB3F9AE5-73AB-4960-AD35-963FD9065784.jpg
     
    OR18TRD [OP] and jtwags like this.
  15. Aug 15, 2019 at 5:42 AM
    #375
    JH5370

    JH5370 Member

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    No I have no idea what’s going on
     
    OR18TRD [OP] likes this.
  16. Aug 15, 2019 at 7:51 AM
    #376
    CROyota

    CROyota New Member

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    Well, can’t wait to come back from vacation to check my tundra for “staining”...:rolleyes:
     
    OR18TRD [OP] likes this.
  17. Aug 16, 2019 at 11:10 AM
    #377
    SiberianTundra

    SiberianTundra I heard Unicorns get horrible MPG

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    Any urls links to this information ?
     
  18. Aug 16, 2019 at 11:12 AM
    #378
    SiberianTundra

    SiberianTundra I heard Unicorns get horrible MPG

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    I wonder why my diff has all those white line markings on the diff? No oil stains yet. My Tundra is not a good artist.
     
    OR18TRD [OP] likes this.
  19. Aug 16, 2019 at 1:55 PM
    #379
    OR18TRD

    OR18TRD [OP] Pândâ Crëw

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    Suspension: front- Bilsein 6112 set at 1.9”; Rear- bilstein 5160 with maxtrac 1” shackel. Wheels: Method MR308 roost wheels 18x9” +18 offset. Tires: 275/70/18 Goodyear wrangler DuraTrac’s Removed front mudflaps and moved front wheel well liner forward. Bakflip MX4 Tonneau cover Line-x premium bed liner aFe CAI Rear differential breather moved behind taillight Debadged Windows tinted 20% ESP locking long box rear seat storage OEM all weather mats 6 3/4” antenna Coverking leather rear seat cover
    They do a delivery check and mark them when as check them.
     
  20. Aug 16, 2019 at 1:59 PM
    #380
    OR18TRD

    OR18TRD [OP] Pândâ Crëw

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  21. Aug 16, 2019 at 2:21 PM
    #381
    Steve89gt

    Steve89gt New Member

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    I don’t think I like this very much. Thoughts?

    upload_2019-8-16_14-21-51.jpg
     
    SiberianTundra likes this.
  22. Aug 16, 2019 at 2:36 PM
    #382
    Punkinhead

    Punkinhead New Member

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    I just did some math and am starting to see why some of you are so upset. 1 drop = 0.0000065 liters. So if you've lost 5 drops in 20k miles, by the time 100k miles rolls around you'll have lost 0.00016 liters. If your diff holds 3.6 liters that represents 0.0045%. Quite the catastrophe.

    Be strong fellow Tundra owners, and keep fighting the good fight.
     
  23. Aug 16, 2019 at 2:44 PM
    #383
    lawrenceb

    lawrenceb New Member

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    Ive NEVER in my life seen or heard of any automaker not repairing a vehicle that is leaking fluids no matter how minor. Diff leaks will eventually get worse over time... they want to ignore the customer till the vehicle is out of warranty then they dont have to fix it.
     
    Alaska likes this.
  24. Aug 16, 2019 at 3:01 PM
    #384
    Steve89gt

    Steve89gt New Member

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    For $46k dollars I kind of feel like I shouldn’t have to routinely crawl under the gd thing just to see if a leak, which has been acknowledged by my dealership, has gotten worse. I also don’t want to discover that the leak has gotten worse through having the drivetrain shit itself whilst towing my travel trailer up a 6% grade. Am I being anal retentive? Perhaps. But seeing as its my hard-earned cash, I figure I retain the right to feel however the f I want about said topic...:)
     
    BuckWallace and lawrenceb like this.
  25. Aug 16, 2019 at 3:04 PM
    #385
    Punkinhead

    Punkinhead New Member

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    You need to march right back into the dealership and let them know that you didn't just fall off the turnip truck and not to think a complete lack of experience with mechanical things is an excuse to take advantage of you. Show them in the owners manual where it calls for 3.6 L in the rear diff and ask them why they think it's ok for there to be 5 drops less. If the Toyota engineers had thought 3.999675 L was OK then, by God, that's what they've had put in the manual.

    Find the number of the Toyota district supervisor and let him know that you don't appreciate the service manager and all the techs having a laugh at your expense, and that you even caught a few smirks from the sales staff as you were leaving. That kind of thing is hurtful and totally uncalled for.
     
    Jengel451 likes this.
  26. Aug 16, 2019 at 3:28 PM
    #386
    Steve89gt

    Steve89gt New Member

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    I’m going to file a complaint, because it’s just ridiculous. The service guy told me the only way to fix the leak was to replace the entire diff, which...just...no.
     
  27. Aug 16, 2019 at 3:51 PM
    #387
    SiberianTundra

    SiberianTundra I heard Unicorns get horrible MPG

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    Contact Toyota directly
     
  28. Aug 16, 2019 at 3:54 PM
    #388
    SiberianTundra

    SiberianTundra I heard Unicorns get horrible MPG

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    So it seems it was the bolts
    per the article above
    Toyota has recalled the current generation of Tacoma one other time. In 2015, the company had to repair 306 of them because the factory installed the incorrect bolts for fastening the driver's side knee-airbag module. The fix was simply changing the bolts.
     
  29. Aug 16, 2019 at 4:00 PM
    #389
    phabej

    phabej New Member

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    I called Toyota directly, they will be sending a Toyota field person out to look at the vehicle, not just some person who works at the dealership to make an eval. I'm taking it in Monday for another issue so they'll look at it both then.

    Call Toyota +18003314331

    I got the same runaround at the dealership. The CSR on the phone said she'll call back Tuesday to check up.

    Even the 10k maintenance says if leaking to inform Toyota to inspect it. Not simply ignore it, that it's fine cause everyone thinks it's ok say so.

    Image 168.jpg
     
    Last edited: Aug 16, 2019
  30. Aug 16, 2019 at 4:42 PM
    #390
    Sas

    Sas Humor is everywhere

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    Lost track after #1.
    You're assuming the leak never worsens. How many times has that happened? Probably the same percentage as above.
     

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