Shake cold start

Discussion in 'Gen 3 Prius Technical Discussion' started by Renovatio07, Oct 5, 2025 at 12:34 PM.

  1. Renovatio07

    Renovatio07 New Member

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    Location:
    Norman
    Vehicle:
    2011 Prius
    Model:
    Three
    I happen to have my data logger on for live data when I turned the car on and had a shake/engine rattle this am. 202000 miles currently part of EGR cleaned front piping and complete cleaning of the intake manifold along with spark plugs replaced 199000. I am the second owner I bought it from auction local trade in. Possible small decrease in coolant hard to say. I can post the data but there are 320+ data points. Just need you all to pick which ones you want to see then I will post the data at the time of the shake thank you.
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  2. ASRDogman

    ASRDogman Senior Member

    Joined:
    May 29, 2018
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    Location:
    Florida
    Vehicle:
    2010 Prius
    Model:
    Two
    Head gasket.... If you read over PC, you'll find this is a common thing....