Front differential leak

Discussion in 'FJ Cruiser' started by 92RedToy, Nov 9, 2017.

  1. 92RedToy

    92RedToy

    Messages:
    25
    Likes Received:
    1
    Joined:
    Feb 28, 2016
    Location:
    Austin
    I have a 2011 fj cruiser, stock, with 116k miles on it.

    I go and put my fj in 4wd for a few minutes then the next day I notice that my front diff is leaking. I dont see any oil coming out the side were the CV axel mates, its directly in the center; and i dont get how just a few minutes in 4wd caused tht much of a leak.

    Could this just be a loose bolt or is this a broken seal?

    20171109_121229.jpg

    20171109_121217.jpg
     
  2. FJX2000

    FJX2000

    Messages:
    45
    Media:
    2
    Likes Received:
    23
    Joined:
    Jul 31, 2012
    Location:
    Cortez, CO (Four-Corners)
    Could be one or the other I suppose. Make sure to tighten the bolts and see if that makes a difference. Are you certain it is coming from the front diff? One test is to wipe everything down so it is clean, but a light layer of baby powder on the surface of the diff, and let it sit overnight so you can see where the leak is coming from.

    My 2008 front diff is a leaky one indeed. It could definitely use some new seals.
     
    92RedToy and alabamatacomaguy like this.
  3. BMThiker

    BMThiker I aim to misbehave Moderator SILVER Star

    Messages:
    8,421
    Media:
    50
    Albums:
    2
    Likes Received:
    6,946
    Joined:
    Sep 19, 2006
    Location:
    Atlanta
    It's the ones on top of the housing that are a real biotch to get to. They do work themselves loose with time especially with a lot of ATrac activity. Next time you are doing maintenance, pull each bolt 1 at a time from the housing and put red loctite on it, then replace it.
     
    92RedToy and alabamatacomaguy like this.
  4. NyNomad

    NyNomad

    Messages:
    521
    Likes Received:
    211
    Joined:
    May 4, 2013
    Location:
    NomadUSA
    that doesn't really qualify as leak from my experience. but it's in the 1st stages for sure. tighten re-torque all of the bolts to the higher end of the tech spec and keep an eye on it for actual leakage, not just a wet seal
     
    92RedToy and BMThiker like this.
  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.