2011 Prius: open/unused housing/socket/hose on EGR preheat loop

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by MARK A SLOO sloo, Jul 26, 2020.

  1. MARK A SLOO sloo

    MARK A SLOO sloo Junior Member

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    Vehicle:
    2010 Prius
    Model:
    III
    Does anyone know what the open socket/housing that is circled in the attached photos is? It is on the EGR preheat loop between the catalytic converter and the EGR cooler. I noticed this while changing the spark plugs on the 2011 Prius.
     

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  2. Raytheeagle

    Raytheeagle Senior Member

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    That's what used to be the high point bleed:).

    They did away with that later on in the Gen3 production cycle;).

    On our old 2010 it had one that could be used but wasn't necessary(y).
     
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  3. SB6

    SB6 Member

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    Check if it's actually open. It might be sealed.

    If you can unscrew it, that might be the bleeder valve for the coolant?

    Edit: Looks like I replied a minute too late lol
     
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  4. MARK A SLOO sloo

    MARK A SLOO sloo Junior Member

    Joined:
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    Location:
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    Vehicle:
    2010 Prius
    Model:
    III
    Thanks for the info, guys!
     
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