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Accessing the Oil Pressure Switch

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by hatchback mountain, Dec 23, 2021.

  1. hatchback mountain

    hatchback mountain New Member

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    Jan 3, 2021
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    Location:
    wisconsin
    Vehicle:
    2007 Prius
    Model:
    N/A
    I have a significant oil leak at the oil pressure switch. Whats the best way to get a tool up in there to get the darn thing?!
    thanks!
     
    #1 hatchback mountain, Dec 23, 2021
  2. ChapmanF

    ChapmanF Senior Member

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    Mar 30, 2008
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    Location:
    Indiana, USA
    Vehicle:
    2010 Prius
    Model:
    IV
    I did an oil pressure measurement on one once (required taking the switch out to attach a gauge there), and I am pretty sure I just removed the engine under covers and worked from below. It was a Gen 1 though; basically same engine, but maybe some differences in the structure beneath it.
     
    #2 ChapmanF, Dec 23, 2021
  3. Georgina Rudkus

    Georgina Rudkus Senior Member

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    Location:
    Taylors, SC
    Vehicle:
    2012 Prius v wagon
    Model:
    Two
    The housing and seal around the sensor of the oil pressure switch deforms easily, if the correct socket is not used to install it. You want to use a socket like this one,



    The current leak is apparently due to a failed seal round the sensor.
     
    #3 Georgina Rudkus, Dec 23, 2021
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