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Hard single shaking

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by Calirrm, Sep 26, 2023.

  1. Calirrm

    Calirrm New Member

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    2014 Prius
    Model:
    Four
    I bought a 2014 Prius four, 2 months ago. The head gasket was replaced at that time by the dealer. I have no experience with prius so i haven't checked egr system or sparkplugs.
    Now I see the vehicle has a hard single shaking when the gas engine starts. It happens when the vehicle on and parked, when I'm waiting for my rideshare trips in a parking lot.
    The hard shaking is only when the hybrid turn to the gas engine.
    The vehicle is totally normal when I'm driving.
    Does anyone have experienced something like that?
     
  2. Brian1954

    Brian1954 Senior Member

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    It sounds like the head gasket was not replaced correctly or it went bad again. Contact the dealer that you bought it from.

    What is the mileage?

    Posted via the PriusChat mobile app.
     
  3. Calirrm

    Calirrm New Member

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    The mileage is 138,370
     
  4. bisco

    bisco cookie crumbler

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    Was it replaced by a Toyota dealership?
     
  5. Calirrm

    Calirrm New Member

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    No
     
  6. bisco

    bisco cookie crumbler

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    any trouble lights?
     
  7. Calirrm

    Calirrm New Member

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    Four
    No, the engine hasn't the rattle noise. It is just a single shake when the gas engine starts after the battery goes to the two lines on dash. It feels like the car got hit by the front.
     
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  8. bisco

    bisco cookie crumbler

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    i'm wondering if this is just normal and you're not familiar with it
     
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