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Supposed seal vaccum line?

Discussion in 'Gen 3 Prius Main Forum' started by le baguette, Jun 21, 2022.

  1. le baguette

    le baguette New Member

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    Hi All,

    First thread and already searched. I have the 2012 Japanese import Prius and found the bit of vacuum(maybe) line is not sealed or plugged.

    What does the bit in the red circle do and should I plug it? Is it causing issue if not plugged?

    Thanks all for the help
    upload_2022-6-22_11-13-7.jpeg
     
    #1 le baguette, Jun 21, 2022
  2. bisco

    bisco cookie crumbler

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    are you having performance issues or trouble lights?
     
    #2 bisco, Jun 22, 2022
  3. ChapmanF

    ChapmanF Senior Member

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    That coolant tee was made, in some versions, with a white air-bleed valve there, which you could open to release air while filling the engine coolant.

    Other versions of that tee are without the bleed valve.

    If you had one of the with-valve versions and took the valve out, you would have a serious leak of red coolant there.

    So I am guessing you simply have the without-valve version. Unless coolant is gushing out.
     
    #3 ChapmanF, Jun 22, 2022
  4. le baguette

    le baguette New Member

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    Thank you sir. Looks like this is the right answer
     
    #4 le baguette, Jun 26, 2022
  5. le baguette

    le baguette New Member

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    Not really apart from car jumps when ice is turned on when parked my parking brake will make a noise
     
    #5 le baguette, Jun 26, 2022
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  6. bisco

    bisco cookie crumbler

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    those are normal, believe it or not
     
    #6 bisco, Jun 26, 2022
  7. Mendel Leisk

    Mendel Leisk EGR Fanatic

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    Pull that bit of hose off? As @ChapmanF says, it's likely the non-venting styling coupling. Venting style has a whilte plastic knurled cap you can unscrew, and a spigot for coolant to then flow.
     
    #7 Mendel Leisk, Jun 27, 2022
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