Oil pressure fluctuating

Discussion in 'Engine & Drivetrain' started by Matahoe, Sep 10, 2018.

  1. Matahoe

    Matahoe Full Access Member

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    I have been seeing some weird oil pressure gauge fluctuations lately.

    Recently I changed the oil pressure sensor at the back of the block by the camshaft sensor. Before I was getting 40 -70 psi and now I am getting 35-55 PSI and the pressure is going up and down 10 or so PSI when rpms are held steady at say 2000 rpm. I have seen a couple threads regarding a worn pickup tube o-ring and was wondering if maybe that was the issue. Also, I don't know why the oil pressure would vary so much after changing the sensor. I am guessing the original was clogged up or something? Thanks for any insight.
     
  2. SnowDrifter

    SnowDrifter Full Access Member

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    Do you have a scan tool that can look at the oil pressure sensor readout? Mechanical gauge is ideal for stuff like this, but in the absence of that, it'll at least help narrow if it's a gauge cluster issue or not

    On the stock gauge what's your oil pressure at idle, both cold and hot?
     
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  3. fiatdale

    fiatdale Houstons Best

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    I just changed my oring on my 2010 this weekend. Fixed all pressure issues.
     
  4. fiatdale

    fiatdale Houstons Best

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    New vs 140k miles & would lose pressure constantly. PN 12584922

    [​IMG]
     
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