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Lower right engine leak

Discussion in '2nd Gen. Tacomas (2005-2015)' started by JAGCanada, Apr 12, 2020.

  1. Apr 12, 2020 at 11:11 AM
    #1
    JAGCanada

    JAGCanada [OP] Well-Known Member

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    2010 Double Cab Sport V6. Picture is lower right (passenger side) of engine. Looks like a small leak, but nothing to serious. Can't determine exactly where it's coming from. Any thoughts on the cause of the leak? Not too worried at this point.

    20200412_140344.jpg 20200412_140106.jpg
     
  2. Apr 12, 2020 at 11:39 AM
    #2
    UOFan

    UOFan Well-Known Member

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    Someone else who knows a lot more than I do may come to a conclusion, but in the mean time, not a bad idea to wipe down that whole area spotless with engine degreaser and monitor intently. Maybe it will lead you closer to the source, if you can see a tiny spot start to grow. Good luck
     
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  3. Apr 12, 2020 at 11:47 AM
    #3
    Jimmyh

    Jimmyh Well-Known Member

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    Common is a leak on the timing cover on the passenger side at the area where the bracket is bolted to the engine. It may be leaking there and running down to the area of your picture.

    Clean it up real good and monitor it.
     
  4. Apr 12, 2020 at 11:52 AM
    #4
    Larzzzz

    Larzzzz Grande' Ricardo

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    Aux back up lights, Bed lights, Re-located trailer plug, Good dooby, a.k.a. jumper cable mod, Heated seats, back up camera,
    If it's behind the power steering pump, it might be the timing chain cover. Easy fix though with some black rtv.
    Once you clean it up, you'll be able to see where it's starting from. Once you find it, clean it up again and run a bead of the rtv over it and let it set.
     
  5. Apr 12, 2020 at 2:07 PM
    #5
    Gen2 Man

    Gen2 Man Well-Known Member

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    very common there was a service bulletin for that. The repair was more involved than trying to stack rtv on it, that won’t work. You might be thinking flex seal
    Some leak worse than others. 2 of mine leak but not enough to worry me
     
  6. Apr 12, 2020 at 3:04 PM
    #6
    Larzzzz

    Larzzzz Grande' Ricardo

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    Aux back up lights, Bed lights, Re-located trailer plug, Good dooby, a.k.a. jumper cable mod, Heated seats, back up camera,
    It worked for me with my 06.
     
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  7. Apr 13, 2020 at 3:51 PM
    #7
    Gen2 Man

    Gen2 Man Well-Known Member

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    Do a search check service bulletin, not a hack repair trick
     
  8. Apr 13, 2020 at 4:03 PM
    #8
    Larzzzz

    Larzzzz Grande' Ricardo

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    Aux back up lights, Bed lights, Re-located trailer plug, Good dooby, a.k.a. jumper cable mod, Heated seats, back up camera,
    That hack repair trick has lasted years with no further issues and took about an hour. Compare that to pulling the timing chain cover.
     
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  9. Apr 13, 2020 at 4:49 PM
    #9
    Jimmyh

    Jimmyh Well-Known Member

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    I'm with you on this Larzzzz. A minor weeping leak is not worth a couple of days of work.
     
    Larzzzz[QUOTED] likes this.
  10. Apr 13, 2020 at 5:12 PM
    #10
    JAGCanada

    JAGCanada [OP] Well-Known Member

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    Thanks for the input. Mine is a 2010 and the TSBs I found were up to 2008 I believe. I will take the advise above and clean it up so I can hopefully see where it is coming from. Right now, the leak isn't that bad and I'll treat it as 'dynamic rust proofing'.

    I looked up the timing cover removal/seal/replace. That is a serious job. Here was one write up: https://www.tacomaworld.com/threads/updated-t-sb-0326-08-oil-leak.17846/

    Hopefully once I find out where it is coming from (i) it isn't the timing cover (aka the whole front of the engine); or (ii) I can address it without tearing the timing cover off. Truck has been reliable so far, other the routine maintenance and the front wheel bearings. Would like to keep it for 10+ more years.
     
    Larzzzz likes this.
  11. Apr 13, 2020 at 6:37 PM
    #11
    Gen2 Man

    Gen2 Man Well-Known Member

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    it all depends on how bad it’s leaking some of them leaked real bad. So the ones I’ve got now leak but I don’t have to add oil between changes so I just keep an eye on it. My first Tacoma left oil spot on driveway it was fixed under warranty at 30k miles. Good luck
     
    Last edited: Apr 13, 2020
  12. Apr 13, 2020 at 8:18 PM
    #12
    lynlan1819

    lynlan1819 Well-Known Member

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    Steam the area CLEAN,and you will be able too see where the leak is.
     
  13. Apr 15, 2020 at 11:06 AM
    #13
    Gen2 Man

    Gen2 Man Well-Known Member

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    thinking about it this leak has also been a topic on 3rd generation Tacoma’s. So it’s one of those things that’s fairly common. I’ve owned 4 gen 2 trucks and 3 of them had this condition. Yes it’s a big repair job going by the service bulletin but good news is a small weep is manageable, just clean and keep eye on it.
     
  14. Apr 15, 2020 at 11:40 AM
    #14
    Fullboogie

    Fullboogie Well-Known Member

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    You channeling Yoda today Jimmy? :D
     
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  15. Apr 15, 2020 at 12:06 PM
    #15
    Jimmyh

    Jimmyh Well-Known Member

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    Channeling I am yes.
     
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