2nd Gen Prius : Oil on spark plug threads

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by Clarence Pascual, Sep 12, 2025 at 7:48 AM.

  1. Clarence Pascual

    Clarence Pascual New Member

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    2007 Prius
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    Just bought a 2007 prius with 124k miles. Did maintenance and found out that oil is getting onto the spark plug threads. Need some help figuring out why, im guessing it's the valve cover gasket/tube seals?

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    #1 Clarence Pascual, Sep 12, 2025 at 7:48 AM
  2. Tombukt2

    Tombukt2 Senior Member

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    If you haven't replaced them and have the car a while that's a pretty good guess
     
    #2 Tombukt2, Sep 12, 2025 at 12:48 PM
    Clarence Pascual likes this.
  3. PriusCamper

    PriusCamper Senior Member

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    Yep... A new valve cover gasket kit will take care of this.
     
    #3 PriusCamper, Sep 12, 2025 at 4:19 PM
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