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Engine making a growning noise

Discussion in 'Gen 2 Prius Technical Discussion' started by temaku, Mar 5, 2011.

  1. temaku

    temaku Junior Member

    Joined:
    Mar 5, 2011
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    Location:
    California
    Vehicle:
    2006 Prius
    Model:
    N/A
    My 2006 Prius makes this noise - like a growning sound for about 5 seconds - when I shutdown the engine. Always happens when I am NOT at the dealership. Generally happens when the engine is hot. :mad::mad: Can anyone give me a clue what this might be? Thanks....Temaku
     
    #1 temaku, Mar 5, 2011
  2. Patrick Wong

    Patrick Wong DIY Enthusiast

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    Mar 8, 2008
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    Location:
    Green Valley, AZ
    Vehicle:
    2015 Prius
    Model:
    Two
    The engine coolant heat recovery system pump will typically run upon startup, as well as shutdown. The pump's function is to move hot engine coolant between the engine and a storage canister located in the front left tire well, to speed up engine warmup. This is normal behavior.
     
    #2 Patrick Wong, Mar 5, 2011
  3. john1

    john1 Junior Member

    Joined:
    May 9, 2008
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    Location:
    NJ
    Vehicle:
    2006 Prius
    I think there was a recall on that. I attach a file of the recall part
     

    Attached Files:

    #3 john1, Mar 21, 2011
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