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engine doesn't shut off.

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by Caug1, May 19, 2011.

  1. Caug1

    Caug1 Member

    Joined:
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    Vehicle:
    2010 Prius
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    III
    Hello,
    i am posting for my friend with 2004 prius with 170k.
    basically , his engine just doesn't shut off. battery is full.
    engine keep running at the stop signs, in park.
    no engine light on.
    Please help.
    Thanks,
    C
     
    #1 Caug1, May 19, 2011
  2. stefano5777

    stefano5777 Member

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    If the battery is full the engine runs to burn off excess charge to not overcharge battery
     
    #2 stefano5777, May 19, 2011
  3. mikewithaprius

    mikewithaprius New Member

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    #3 mikewithaprius, May 19, 2011
  4. ccdisce

    ccdisce Active Member

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    Hang a ScanGauge on it and measure the ECT, maybe it is not getting to S4 because the Thermostat is stuck Open or the ECT sensor is always reading LOW, ECT resistor open?
     
    #4 ccdisce, May 19, 2011
    1 person likes this.
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