1. Attachments are working again! Check out this thread for more details and to report any other bugs.

Oil leak

Discussion in 'Gen 4 Prius Technical Discussion' started by infection, May 28, 2023.

  1. infection

    infection Junior Member

    Joined:
    Nov 7, 2017
    7
    1
    0
    Location:
    norfolk
    Vehicle:
    2017 Prius
    Model:
    Four
    Hello i have a oil leak from this two bolts. Do you know torque specs please, they are tight, anybody have same issue thanks
     

    Attached Files:

    #1 infection, May 28, 2023
    Last edited: May 28, 2023
  2. bisco

    bisco cookie crumbler

    Joined:
    May 11, 2005
    107,693
    48,945
    0
    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    i can't see any leaking
     
    #2 bisco, May 28, 2023
  3. CooCooCaChoo

    CooCooCaChoo Active Member

    Joined:
    Jan 7, 2015
    888
    494
    0
    Location:
    Cow-lee-fornia
    Vehicle:
    2023 Prius
    Model:
    LE
    That's the valve cover. Oil would not be leaking from those two bolts. Probably what happened is whoever did an oil change spilled some oil and gave it the appearance of oil leaking from there.
     
    #3 CooCooCaChoo, May 29, 2023
    bisco likes this.
  4. bisco

    bisco cookie crumbler

    Joined:
    May 11, 2005
    107,693
    48,945
    0
    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    that's what i was thinking, but wasn't sure
     
    #4 bisco, May 29, 2023
  5. infection

    infection Junior Member

    Joined:
    Nov 7, 2017
    7
    1
    0
    Location:
    norfolk
    Vehicle:
    2017 Prius
    Model:
    Four
    Definitely leaking I wipe few times and it's there
     

    Attached Files:

    #5 infection, May 30, 2023
  6. Mendel Leisk

    Mendel Leisk Senior Member

    Joined:
    Oct 17, 2010
    54,662
    38,207
    80
    Location:
    Greater Vancouver, British Columbia, Canada
    Vehicle:
    2010 Prius
    Model:
    Touring
    Remove those two bolts and check the faying* surfaces, clean and reinstall?

    * fancy word for contact zone between two objects

    Torque spec is 7 ft/lb, see attached.
     

    Attached Files:

    #6 Mendel Leisk, May 30, 2023
    infection likes this.
  7. ColoradoBoo

    ColoradoBoo Senior Member

    Joined:
    Jul 19, 2019
    912
    598
    4
    Location:
    Monument, Colorado USA
    Vehicle:
    2017 Prius
    Model:
    Two
    You could replace the valve cover gasket and re-torque. (A new gasket is about $20 at Toyota). Or just keep an eye on it...looks more like a seeping then a leaking to me. (My Tundra has a seep in the rear cam tower but costs over $2,000 in labor to fix to just keeping an eye on it...it's not even leaking enough to drip, yet.)
     
    #7 ColoradoBoo, May 30, 2023
  8. unigeezer

    unigeezer Member

    Joined:
    Jul 7, 2008
    216
    58
    0
    Location:
    torrance, ca
    Vehicle:
    2011 Prius
    Model:
    Three
    Is this oil pressure sensor leaking oil? IMG_20230531_132401.jpg IMG_20230531_132537.jpg
     
    #8 unigeezer, May 31, 2023
(You must log in or sign up to post here.)