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What is this leaking oil?

Discussion in '3rd Gen 4Runners (1996-2002)' started by braahk, Nov 20, 2020 at 6:02 PM.

  1. Nov 20, 2020 at 6:02 PM
    #1
    braahk

    braahk [OP] New Member

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    Hi everyone, just bought a 2001 4runner and noticed it was leaking a little oil. It appears to be coming from this silver part but I don’t know enough about vehicles to know what this is. It is on the driver said and about 3-4 inches from the oil filter. Any ideas?

    Thanks and excited to be part of this forum after coming from tacoma world.

    C87CA4EB-6FE2-49BD-8083-926DDEEFCE37.jpg
     
    TomC1994 and Thatbassguy like this.
  2. Nov 20, 2020 at 9:45 PM
    #2
    shake007

    shake007 New Member

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    Looks like the bolt holding your upper control arms. I would check your valve covers to see if that’s leaking which woukd drip down to this part.
     
  3. Nov 21, 2020 at 2:43 AM
    #3
    Toy4X4

    Toy4X4 New Member

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    Welcome From Wisconsin! Is this part attached to the side of the block as it appears? It almost looks like you can read the part number, write the number down, call Toyota parts dept., ask them what it is, and if they have one in stock.
     
    Thatbassguy likes this.
  4. Nov 21, 2020 at 6:15 AM
    #4
    Thatbassguy

    Thatbassguy New member? Really??

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    Welcome to the forum, @braahk !


    Yes, this!

    Or google the part number.
     
  5. Nov 21, 2020 at 6:23 AM
    #5
    braahk

    braahk [OP] New Member

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    ya it’s attached to the block. i was hoping the camera would take a better picture of the part number since it’s hard to get a clear look. thanks for the suggestion i’ll see if i can find the number
     
    Thatbassguy likes this.
  6. Nov 21, 2020 at 7:12 AM
    #6
    Thatbassguy

    Thatbassguy New member? Really??

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    I'm really curious now!

    Bump! Hopefully one of the super smart members will see this and know exactly what it is.

    Or, maybe we'll get a better picture of the part number.
     
    Toy4X4 likes this.
  7. Nov 21, 2020 at 8:53 AM
    #7
    TomC1994

    TomC1994 New Member

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    It’s the oil cooler! I have a 95 and recently replaced the O rings on it to fix a small leak. The hoses attached are coolant hoses and will drain when you take them off so I went ahead and did a coolant flush at the same time
     
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  8. Nov 21, 2020 at 10:35 AM
    #8
    trlhiker

    trlhiker New Member

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    Exactly what i was going to say. Had to replace the orings in mine too a few years back. It takes 3 if I remember right.
     
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  9. Nov 21, 2020 at 2:08 PM
    #9
    Toy4X4

    Toy4X4 New Member

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    We have a Winner! Way to go Tom! braahk, a little brake cleaner to clean the area, a few new "o" rings, and your back in business.
     
  10. Nov 21, 2020 at 2:13 PM
    #10
    braahk

    braahk [OP] New Member

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    thank you!!!!! i really appreciate everyone’s input on this one
     
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  11. Nov 21, 2020 at 2:16 PM
    #11
    braahk

    braahk [OP] New Member

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    Toy4X4 and nimby like this.
  12. Nov 23, 2020 at 7:44 AM
    #12
    negusm

    negusm New Member

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    I was doing a bunch of maintenance to the engine (valve covers for one). Figured I'd replace the oil cooler seals and the bolt gasket as those are cheap and the oil cooler leaks are a known issue.

    I got the bolt off...and that damn oil cooler was like it was welded to the side of the block.

    I gave up and just put the bolt back in.

    Couldn't tell if it was leaking or not. It was covered in oil. I'm hoping it was due to the valve coves which were leaking a quart a month.

    Make sure you buy TOYOTA gaskets/rings and the bolt washer WHICH IS NOT REUSABLE.
     
    Toy4X4 likes this.

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