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Little black hose

Discussion in 'Gen 2 Prius Main Forum' started by Sphil05, Jan 27, 2021.

  1. Sphil05

    Sphil05 New Member

    Joined:
    Jan 8, 2021
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    Location:
    Pennsylvania
    Vehicle:
    2005 Prius
    Model:
    II
    I replaced my 12v optima battery, and noticed this little black hose that comes up through the floor in the back. I didn’t notice disconnecting it, and don’t see where it went. Can anyone tell me what this is, maybe just a vent? Also found there was an inch of water in the bottom of the well.
     

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  2. edthefox5

    edthefox5 Senior Member

    Joined:
    Jul 25, 2007
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    Location:
    Clearwater, Florida
    Vehicle:
    2007 Prius
    Model:
    Two
    It is the vent for your 12 volt battery. Your optima had a vent don’t know what you bought.

    Try to address that rust if not it will eventually rot out and the bottom will fall out there’s a lot of weight on that area.
    Few posters that had happened to quite a hassle to fix it.
    It’s probably rotted under you spare tire too.

    the water drips right on the hybrid battery fan connector too and rots it out.
    That will throw a red triangle of death.

    good times
     
    Sphil05 likes this.