Is there a "high point" in the cooling system? For air removal.

Discussion in 'Prius v Care, Maintenance and Troubleshooting' started by Slide_into_the_V, Sep 16, 2018.

  1. Slide_into_the_V

    Slide_into_the_V Junior Member

    Joined:
    Apr 12, 2018
    21
    7
    0
    Location:
    phoenix, az
    Vehicle:
    2013 Prius v wagon
    Model:
    III
    I was installing an oil catch can today, and instead of removing the intake manifold, I opted to just worm my hand in behind it to get the tubes changed. Another tube, one that goes into the throttle body (see image in link below) was in the way, and looked like it was probably part of the EGR system, or some other gas recovery type thing, and I decided to pop it off. OOPS! coolant. I put it right back on , but I'm pretty sure I've introduced some air into the cooling system. How would I go about clearing this out, or should I just take it to my mechanic and pay him for 15-30 minutes of labor to bleed the air out?

    https://i.imgur.com/DNchbFa.jpg

    edit: as of this moment, I have yet to run the engine, car is sitting in the garage with the air intake off.
     
    #1 Slide_into_the_V, Sep 16, 2018
    Last edited: Sep 16, 2018
  2. bisco

    bisco cookie crumbler

    Joined:
    May 11, 2005
    111,187
    50,614
    0
    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    check out nutzaboutbolts youtube video to see if gen3 will work on the v.
     
    #2 bisco, Sep 16, 2018
    Raytheeagle likes this.
  3. Slide_into_the_V

    Slide_into_the_V Junior Member

    Joined:
    Apr 12, 2018
    21
    7
    0
    Location:
    phoenix, az
    Vehicle:
    2013 Prius v wagon
    Model:
    III
    check out nutzaboutbolts youtube video to see if gen3 will work on the v.

    He doesn't open the cooling system in that video. I don't think you understand what I'm talking about at all, or you didn't read my entire post. I have the oil catch can installed. that is not the problem. I'm concerned that I have introduced an air pocket into the cooling system. This is completely unrelated to installing the oil catch can, it just happens to be what I was doing at the time.
     
    #3 Slide_into_the_V, Sep 16, 2018
  4. bisco

    bisco cookie crumbler

    Joined:
    May 11, 2005
    111,187
    50,614
    0
    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    he doesn't have a video on replacing the coolant and burping the system?
     
    #4 bisco, Sep 16, 2018
  5. Slide_into_the_V

    Slide_into_the_V Junior Member

    Joined:
    Apr 12, 2018
    21
    7
    0
    Location:
    phoenix, az
    Vehicle:
    2013 Prius v wagon
    Model:
    III
    Oh, I thought you were talking about his video on installing an oil catch can.... my mistake. Let me hunt that down, thanks!
     
    #5 Slide_into_the_V, Sep 16, 2018
    bisco likes this.
  6. Slide_into_the_V

    Slide_into_the_V Junior Member

    Joined:
    Apr 12, 2018
    21
    7
    0
    Location:
    phoenix, az
    Vehicle:
    2013 Prius v wagon
    Model:
    III
    It looks like, for the engine coolant at least, you just run the engine and the coolant will sort itself out. I imagine that the next time I hop on the freeway, the prolonged engine running would take care of it. Thanks for pointing me in the right direction.
     
    #6 Slide_into_the_V, Sep 16, 2018
  7. Mendel Leisk

    Mendel Leisk Senior Member

    Joined:
    Oct 17, 2010
    57,977
    39,996
    80
    Location:
    Greater Vancouver, British Columbia, Canada
    Vehicle:
    2010 Prius
    Model:
    Touring
    At least in our 2010 Prius hatchback, the highpoint in the engine coolant circuit is the hoses connecting into the top of the Exhuast Gas Recirculation cooler. There's actually a (white plastic) bleed bolt there. When I did our EGR circuit I purposely drained 2 liters at the outset (dropped the coolant level completely below the egr system, then when done added the coolant at the reservoir, while leaving that valve open and burping the hoses a bit as I poured. As of 2012 model year Toyota in their wisdom deleted the bleed bolt, but the hoses are still similar. I would think just disconnect the top hose there, and add coolant to the reservoir, burp the hoses, till fluid starts coming out, then quickly reconnect.

    See white cap and black junction. There's a spigot off the right side you can push tubing onto, or just work fast, close it quickly when coolant starts coming out:

    IMG_9356.JPG
     
    #7 Mendel Leisk, Sep 16, 2018
    ttatlanta, Raytheeagle and bisco like this.
  8. Raytheeagle

    Raytheeagle Senior Member

    Joined:
    Jul 1, 2016
    11,261
    15,499
    0
    Location:
    Bay Area, California
    Vehicle:
    2019 Prius Prime
    Model:
    Prime Plus
    Meh,

    I’ve bled our 2010’s (and about a 1/2 dozen other Gen3 Prii) and never used the high point drain;).

    Toyota took it out as it isn’t needed:).

    I’d just turn the car on and have the engine coolant cap off ready to add some to the reservoir ;).

    So much for saving time by not removing the intake manifold :whistle:.
     
    #8 Raytheeagle, Sep 16, 2018
    m.wynn and Mendel Leisk like this.
  9. bisco

    bisco cookie crumbler

    Joined:
    May 11, 2005
    111,187
    50,614
    0
    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    and turn the heat on?
     
    #9 bisco, Sep 16, 2018
    Mendel Leisk and Raytheeagle like this.
  10. Slide_into_the_V

    Slide_into_the_V Junior Member

    Joined:
    Apr 12, 2018
    21
    7
    0
    Location:
    phoenix, az
    Vehicle:
    2013 Prius v wagon
    Model:
    III
    I lost maybe an ounce of fluid, I'm not going to worry about topping off the reservoir for that much.
     
    #10 Slide_into_the_V, Sep 16, 2018
    Raytheeagle likes this.
  11. Raytheeagle

    Raytheeagle Senior Member

    Joined:
    Jul 1, 2016
    11,261
    15,499
    0
    Location:
    Bay Area, California
    Vehicle:
    2019 Prius Prime
    Model:
    Prime Plus
    Then just turn the car on and crank up the heat and see what happens;).
     
    #11 Raytheeagle, Sep 16, 2018
    Mendel Leisk likes this.
(You must log in or sign up to post here.)