oil pressure switch

Discussion in 'Prius v Care, Maintenance and Troubleshooting' started by darknd666, Apr 2, 2026 at 8:17 PM.

  1. darknd666

    darknd666 Junior Member

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    Whats going on here? Ill probably put some UV dye in the oil and see where its coming from.
     

    Attached Files:

    #1 darknd666, Apr 2, 2026 at 8:17 PM
  2. BiomedO1

    BiomedO1 Senior Member

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    just spray the area around and above it with brake cleaner or degreaser. If it is the oil sensor leaking; they usually leak where the brass and plastic meet or around the electrical connector; there's a crack in the plastic portion of the sensor.

    Good Luck.....
     
    #2 BiomedO1, Apr 3, 2026 at 10:22 AM
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  3. darknd666

    darknd666 Junior Member

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    Thank you, more or less I was asking if this is where the mess "usually comes from". I have the cowls removed right now so easy access.
     
    #3 darknd666, Apr 3, 2026 at 12:01 PM
  4. rjparker

    rjparker Tu Humilde Sirviente

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    It usually comes from the timing chain cover seal. A common problem.

    Mine looked like yours until it was cleaned and then run for 30 minutes.
    Timing Chain Cover leak vertical.jpeg
     
    #4 rjparker, Apr 3, 2026 at 4:03 PM
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