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noise

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by domtick, Dec 31, 2014.

  1. domtick

    domtick Junior Member

    Joined:
    Jun 29, 2011
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    Location:
    Middletown. Delaware
    Vehicle:
    2009 Prius
    Model:
    N/A
    This is the second night in a row that we hear a noise coming from the back of the car. I know that some noises are normal but this is after the car is stopped/parked in the garage for some 5 hours. Any ideas?
     
    #1 domtick, Dec 31, 2014
  2. bisco

    bisco cookie crumbler

    Joined:
    May 11, 2005
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    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    emission check or something, pretty sure it's in the o/m. first time you happen to hear it it's like, 'what the what'? car's talking' to me.(n)
     
    #2 bisco, Dec 31, 2014
    domtick likes this.
  3. JC91006

    JC91006 Senior Member

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    Location:
    Los Angeles, CA
    Vehicle:
    2008 Prius
    Model:
    II
    follow the noise and see where it leads you. maybe it's a rat calling out for help
     
    #3 JC91006, Dec 31, 2014
  4. caedward

    caedward Junior Member

    Joined:
    Aug 9, 2014
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    Location:
    Fort Worth, Texas
    Vehicle:
    2014 Prius
    Model:
    Two
    100% normal. It is the sound of a pump performing a fuel evaporation leakage check that happens 5 hours after last driven. See the Owner's Manual for details.
     
    #4 caedward, Dec 31, 2014
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