Oil splash on rear left side of engine

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by MeGuinness, Mar 30, 2017.

  1. MeGuinness

    MeGuinness Member

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    Just changed engine oil and filter....and i noticed that the left side of the engine is all splashed with oil. Anyone with same problem? Is that a pressure switch? Thanks Thanks 1490865614486.jpg

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  2. tankyuong

    tankyuong Senior Member

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    add some uv dye to see where its coming from
     
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  3. bisco

    bisco cookie crumbler

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    are the fill cap and dipstick tight?
     
  4. MeGuinness

    MeGuinness Member

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  5. xliderider

    xliderider Senior Member

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    What's the mileage on the odometer? Engine warranty is 60mo./60k miles which covers seals and gaskets.

    Semi common problem on the Gen 3 engine is a timing cover gasket oil leak.
     
    #5 xliderider, Mar 31, 2017
    Last edited: Mar 31, 2017
  6. MeGuinness

    MeGuinness Member

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    Mileage is 198k miles .....,i will have to look at my friend newer 3 gen Prius to see if it as same problem!

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  7. Mendel Leisk

    Mendel Leisk 'Orrible Oracle

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    I looked at our 2010 with 66,000 km: it's all dry/clean there.

    Can't recall if I've mentioned before, but pcv valve clogging may cause crankcase pressure and maybe start pushing oil past seals? Maybe you've looked at that already though?
     
  8. Currahee

    Currahee Member

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    We have the same issue on our 2010 since before I started working on the car a couple years ago. I just leave it alone. It's either imperceptibly slow or old seepage that has stopped long ago. The engine burns about 1qt per 2500 miles and doesn't leak any oil on the floor or splash shield.
     
  9. bisco

    bisco cookie crumbler

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    does the 2010 have the timing chain gasket?
     
  10. xliderider

    xliderider Senior Member

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    Yes
     
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  11. bisco

    bisco cookie crumbler

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    isn't that a problematic area?
     
  12. Currahee

    Currahee Member

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    The timing chain cover isn't something you can take off without removing the engine, I think. At least it would be very difficult.
     
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  13. bisco

    bisco cookie crumbler

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    maybe some sealant?
     
  14. Currahee

    Currahee Member

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    Actually here's a video of someone replacing the seals on a similar engine (more like the Gen 2) without removing the whole thing:
    .
     
  15. xliderider

    xliderider Senior Member

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    LOL, I like how all the fasteners and bolts are all only "hand tight" and come off with ease.
     
  16. WolfpackBill

    WolfpackBill Active Member

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