1. Michael PTSD

    Michael PTSD New Member

    Joined:
    Nov 3, 2025
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    Location:
    United States
    Vehicle:
    2010 Prius
    Model:
    I
    Hello folks,

    I just got done swapping the motor in this 2010 Prius, and I ended up with this 1 orphaned hose fitting that I can't find the hose to plug onto. Can you guys identify what this is and where the missing hose might be?

    Mystery_Hose-2.jpg
    It's that tube that runs across the back (right side) of the valve cover, underneath the wiring harness. I can't for the life of me find a hose to plug onto it.
    Mystery_Hose-1.jpg
     
  2. Brian1954

    Brian1954 Senior Member

    Joined:
    Jan 31, 2021
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    Location:
    South Central PA, USA
    Vehicle:
    2011 Prius
    Model:
    III
    I took a picture of my 2011 Prius to show you the hose that you are missing. Hose.jpg
     
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  3. Mendel Leisk

    Mendel Leisk MMX GEN III

    Joined:
    Oct 17, 2010
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    Location:
    Greater Vancouver, British Columbia, Canada
    Vehicle:
    2010 Prius
    Model:
    Touring
    'Nother angle:

    upload_2025-11-11_9-28-51.png

    (It's for gas tank vapours I think, routes them to intake manifold.)
     
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  4. Michael PTSD

    Michael PTSD New Member

    Joined:
    Nov 3, 2025
    2
    1
    0
    Location:
    United States
    Vehicle:
    2010 Prius
    Model:
    I
    Yup got it. Thanks. I had to take that pipe assembly off the old motor, because it was a different diameter. But now I got bigger problems. At first it wouldn't start, now it runs and drives but I don't think the Hybrid system is even working, and I got 7 different trouble codes, and virtually every warning light on the dash is on...I'll make a new post about the situation.
     
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