Throttle body coolant hoses - where do they go?!

Discussion in 'Gen 3 Prius Main Forum' started by Bobby Babaletskos, May 9, 2025 at 10:57 PM.

  1. Bobby Babaletskos

    Bobby Babaletskos Junior Member

    Joined:
    Oct 26, 2020
    1
    0
    0
    Location:
    Flagstaff
    Vehicle:
    2010 Prius
    Model:
    One
    Hello, I’m an idiot..
    I cannot find where the coolant hoses go to from the throttle body, I did the EGR cooler, intake manifold cleaning by taking them both out and I pulled some of the hoses. Now I don’t know where these hoses go.
    Can you help.
     

    Attached Files:

    #1 Bobby Babaletskos, May 9, 2025 at 10:57 PM
  2. MAX2

    MAX2 Senior Member

    Joined:
    Aug 12, 2024
    1,410
    458
    101
    Location:
    Third planet from the Sun
    Vehicle:
    2007 Prius
    Model:
    N/A
    The hoses go to two nipple outlets on the top and side.
    According to p.8 "Disconnect the throttle body connector and the 2 water by-pass hoses."

    https://attachments.priuschat.com/attachment-files/2024/10/258457_3rd_gen_-_Throttle_body_removal_and_install.pdf
     
    #2 MAX2, May 10, 2025 at 4:20 AM
  3. Mendel Leisk

    Mendel Leisk Senior Member

    Joined:
    Oct 17, 2010
    58,472
    40,266
    80
    Location:
    Greater Vancouver, British Columbia, Canada
    Vehicle:
    2010 Prius
    Model:
    Touring
    For next time: throttle body can be lifted off, and intake manifold removed as well, without disconnecting the coolant hoses. There’s enough hose slack you can maneuver the throttle for cleaning, then just tie it to the inverter wiring harness and carry on. See top two links in my signature, second in particular, for coolant hose strategies during EGR cleaning. (On a phone turn it landscape to see signatures).
     
    #3 Mendel Leisk, May 10, 2025 at 9:15 AM
(You must log in or sign up to post here.)