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mysterious sound when engine is shut off

Discussion in 'Gen 2 Prius Main Forum' started by setheriah, Mar 6, 2007.

  1. setheriah

    setheriah New Member

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    I had a question on what sound the car was making when the engine was turned off... It makes the sound for about 10 seconds after I turn the engine off and it sounds like a humming noise... What is that coming from...
     
  2. gamiller

    gamiller New Member

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    Thats in the manual someplace it has to do with the brake if I remember correctly --not a problem
     
  3. SomervillePrius

    SomervillePrius New Member

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    The prius (in US at least) has a thermos where it pumps in hot engine liquids and stores it. When it starts it pumps it into the engine thus making it heat up faster. The thermos holds the temp for something like 48hrs.
     
  4. Kablooie

    Kablooie Member

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    <div class='quotetop'>QUOTE(SomervillePrius @ Mar 6 2007, 07:29 PM) [snapback]401283[/snapback]</div>
    Oh that's a relief.

    I thought it was the sound from the ghost of a dead worker who fell into the engine long ago.
     
  5. setheriah

    setheriah New Member

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    It just makes a hum sound for about 10-15 seconds and it quits
     
  6. Texas911

    Texas911 Member

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    Mine does the same thing and I noticed that if I try to lock the Prius, it won't respond until the sould stops. Is this normal?
     
  7. jiepsie

    jiepsie New Member

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    <div class='quotetop'>QUOTE(setheriah @ Mar 9 2007, 07:12 PM) [snapback]402887[/snapback]</div>
    The European version makes the same sound, and it does not have the thermos. Must be a pump for the brake hydraulics, but I sure would like to know why it needs to run after the car is switched off.
     
  8. smrtguy

    smrtguy Junior Member

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    I remember reading in the manual that there is some sort of leak/safety check performed few minutes after the engine stops, and that makes noise too. I don't have the manual with me right now, but will be glad to review that info later on and post.
     
  9. JimN

    JimN Let the games begin!

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    <div class='quotetop'>QUOTE(setheriah @ Mar 6 2007, 07:13 PM) [snapback]401270[/snapback]</div>
    That's the hamster wheel spinning down. :p