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

Stripped bolt while removing EGR

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by eezybeezy, Sep 15, 2023.

  1. eezybeezy

    eezybeezy New Member

    Joined:
    Aug 24, 2023
    10
    2
    1
    Location:
    USA
    Vehicle:
    2015 Prius
    Model:
    Four
    I'm trying to do an EGR cleaning on a 2015 Prius Four. I was trying to undo the bottom nut which can be seen in the screenshot, and my wrench got lost in the engine bay. I tried using a slightly too large socket (I know, stupid) and somewhat rounded it off.

    I went and bought a new ratcheting box wrench, but it won't fit on the bent up nut. I've tried pliers but it's a really hard angle. I sprayed some PB blaster about half an hour ago to maybe make it easier with pliers. But if that doesn't work, what do I do? There's barely any room for nut extractor tools.

     
    #1 eezybeezy, Sep 15, 2023
  2. eezybeezy

    eezybeezy New Member

    Joined:
    Aug 24, 2023
    10
    2
    1
    Location:
    USA
    Vehicle:
    2015 Prius
    Model:
    Four
    Nevermind, I got it! I remembered we have long bolt extractors, and I stuck it on a socket wrench, and it came out. I used the 1/2 inch size Irwin Hanson Deep Well Bolt Grip, shown in the photo, if anyone else has this issue.

    IMG_20230915_124855_139.jpg
     

    Attached Files:

    #2 eezybeezy, Sep 15, 2023
    bisco likes this.
  3. eezybeezy

    eezybeezy New Member

    Joined:
    Aug 24, 2023
    10
    2
    1
    Location:
    USA
    Vehicle:
    2015 Prius
    Model:
    Four
    Does anyone know the size of nut I need to replace it? I've seen some posts about people not even putting a certain nut back on after. Is it this one?
     
    #3 eezybeezy, Sep 15, 2023
  4. bisco

    bisco cookie crumbler

    Joined:
    May 11, 2005
    109,802
    49,892
    0
    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    have you watched the nutzaboutbolts video? idk if he mentions it or not
     
    #4 bisco, Sep 15, 2023
  5. eezybeezy

    eezybeezy New Member

    Joined:
    Aug 24, 2023
    10
    2
    1
    Location:
    USA
    Vehicle:
    2015 Prius
    Model:
    Four
    Yes, but he just says 12mm. But that's the width of the outside of the nut, not the inner threaded part.

    I'm thinking to use the nut from the side on the low stud, and not putting a nut there, since I think that's what people said wasn't a big deal to use.
     
    #5 eezybeezy, Sep 16, 2023
  6. xliderider

    xliderider Senior Member

    Joined:
    Apr 19, 2012
    7,913
    3,140
    0
    Location:
    Honolulu, HI
    Vehicle:
    2011 Prius
    Model:
    Three
    Some of use never reinstall that PITA nut after removing it for the first, and last time.

    I've also removed the stud that the nut attached to as well. It makes reinstalling the cooler much easier, both to position the cooler, and you don't have to fuss with that out of the way nut.

    Posted via the PriusChat mobile app.
     
    #6 xliderider, Sep 16, 2023
    bisco likes this.
  7. Mendel Leisk

    Mendel Leisk EGR Fanatic

    Joined:
    Oct 17, 2010
    56,370
    39,079
    80
    Location:
    Greater Vancouver, British Columbia, Canada
    Vehicle:
    2010 Prius
    Model:
    Touring
    ^ This. Remove the nut, and the stud (with E8 Torx socket, very cautiously*), put them labelled in box somewhere, for about a decade, then throw out. (That's my workflow, makes EGR cooler removal MUCH easier next time, and assuages your conscience.)

    * It took me about 1/2 hour, very patiently backing out that stud, with a 1/4" drive ratchet and torx socket, so crowded and deep in there it was one click at a time. Dissimilar metals made it a bear..
     
    #7 Mendel Leisk, Sep 16, 2023
    Last edited: Sep 16, 2023
    xliderider and bisco like this.
  8. Mendel Leisk

    Mendel Leisk EGR Fanatic

    Joined:
    Oct 17, 2010
    56,370
    39,079
    80
    Location:
    Greater Vancouver, British Columbia, Canada
    Vehicle:
    2010 Prius
    Model:
    Touring
    Speaking of bears, across the street from me, about 10 minutes ago. I was in a rush, so instead of turning around just scooted by (on foot).

    Typical lawn, btw, hasn't been significant rain here in months.
     

    Attached Files:

    #8 Mendel Leisk, Sep 16, 2023
    xliderider and Mr. F like this.
  9. eezybeezy

    eezybeezy New Member

    Joined:
    Aug 24, 2023
    10
    2
    1
    Location:
    USA
    Vehicle:
    2015 Prius
    Model:
    Four
    Ok thanks all. I already put it back together without the nut, but the stud is still there. It wasn't too challenging with the stud, but next time I might remove it.

    In other news, does anyone know where these go? :LOL: It's the only extras I ended up with. I remember one of the videos I watched saying to take them out, but can't remember which video.

    IMG_20230916_170121_826.jpg
     
    #9 eezybeezy, Sep 16, 2023
  10. bisco

    bisco cookie crumbler

    Joined:
    May 11, 2005
    109,802
    49,892
    0
    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    :eek:
     
    #10 bisco, Sep 16, 2023
    Mendel Leisk likes this.
  11. Mendel Leisk

    Mendel Leisk EGR Fanatic

    Joined:
    Oct 17, 2010
    56,370
    39,079
    80
    Location:
    Greater Vancouver, British Columbia, Canada
    Vehicle:
    2010 Prius
    Model:
    Touring
    The little plastic trim pieces, at bottom ends of windshield.
     
    #11 Mendel Leisk, Sep 16, 2023
    xliderider likes this.
  12. xliderider

    xliderider Senior Member

    Joined:
    Apr 19, 2012
    7,913
    3,140
    0
    Location:
    Honolulu, HI
    Vehicle:
    2011 Prius
    Model:
    Three
    @eezybeezy, FYI the title should be rounded off the nut. Stripping the nut means the threads inside the nut were damaged, which wasn't the case.

    Posted via the PriusChat mobile app.
     
    #12 xliderider, Sep 16, 2023
    eezybeezy likes this.
  13. eezybeezy

    eezybeezy New Member

    Joined:
    Aug 24, 2023
    10
    2
    1
    Location:
    USA
    Vehicle:
    2015 Prius
    Model:
    Four
    Much appreciated!
     
    #13 eezybeezy, Sep 18, 2023
    Mendel Leisk likes this.
(You must log in or sign up to post here.)