Water in the wrong places!!!

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by Dirtnapper, Apr 16, 2014.

  1. Dirtnapper

    Dirtnapper Member

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    I was on a trip last week and I wanted to check the lugs on the wheels. I opened the storage area only to find about 1.5" of water. I removed the spare and opened the plugs, dried the area. We did have a heavy rain a few days before so I am thinking that it was from that and would check it out when I got home. Yikes! I noticed that the small battery well had water in it also today!! I siphoned off the water, I know I will have to take out the battery and dry that area. While checking this area I noticed a small hose coming from the floor area, see pic. Does anyone know what this is for, should it be attached to anything....is it a bilge pump, since it looks like I need one :) Anybody else have water and where might it be coming from? This is a Prius 2007. Thanks.
     

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    #1 Dirtnapper, Apr 16, 2014
  2. usnavystgc

    usnavystgc Die Hard DIYer and Ebike enthusiast.

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    The hose is your battery vent hose.
     
    #2 usnavystgc, Apr 16, 2014
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  3. Dylan Doxey

    Dylan Doxey Senior Member

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    The back of the tail light unit has a foam weather seal which prevents water from entering the interior.

    [​IMG]

    I would start by removing the passenger side (closest to the 12v battery) light and verifying that the weather seal is intact.
     
    #3 Dylan Doxey, Apr 16, 2014
  4. hyo silver

    hyo silver Awaaaaay

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    Yes, that little hose is a vent for the battery - it doesn't come from the floor so much as goes into it, from the battery. As for the bilge pump, I also discovered water under the battery when I changed it recently. There was only enough to need a few rags, and I haven't seen any more leaks yet, despite several rains.
     
    #4 hyo silver, Apr 16, 2014
  5. Patrick Wong

    Patrick Wong DIY Enthusiast

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    Look for a crack in the body seam along the hatch opening. There are other posts about that crack which results in water leaking into the hatch area.
     
    #5 Patrick Wong, Apr 16, 2014
  6. Dirtnapper

    Dirtnapper Member

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    Thanks guys for the info...if we ever get spring back I'll get on this.
     
    #6 Dirtnapper, Apr 16, 2014
  7. uart

    uart Senior Member

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    It just vents gas (hydrogen) from the 12V battery to the exterior (under the car). In most cases where the battery is healthy this vent doesn't really do much, but it's a safety thing in the event of a failed battery (or charger) causing the battery to gas excessively.

    Follow the leads you found in the other thread 12 volt battery change and alot of water under it | PriusChat - that's the most likely place that water seeps in from.
     
    #7 uart, Apr 17, 2014
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  8. Dirtnapper

    Dirtnapper Member

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    Well, got rid of this problem. We went tonight and bought the Prius v Three. We had been thinking about it for a bit. I was about to put new tires, wipers just yesterday. This issue kind of help move the buying decision up. I will be very watchful for this on the new one.
     
    #8 Dirtnapper, Apr 18, 2014
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  9. Dylan Doxey

    Dylan Doxey Senior Member

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    Any reason is a good reason for a new Prius.
     
    #9 Dylan Doxey, Apr 18, 2014
  10. Dirtnapper

    Dirtnapper Member

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    Buying is such a PITA, the hassles with the price, and then trying to get out of the finance office. They just don't want to hear that you are financing elsewhere, and then the add-ons... It just doesn't change. My next one will be online only I think.
     
    #10 Dirtnapper, Apr 19, 2014
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  11. hyo silver

    hyo silver Awaaaaay

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    Well, that's one way to get new tires and wipers...... :rolleyes:
     
    #11 hyo silver, Apr 19, 2014
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