01 Tahoe 5.3 4wd, 204k miles

Discussion in 'Engine & Drivetrain' started by Skunkape, Nov 8, 2018.

  1. Skunkape

    Skunkape TYF Newbie

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    Lost oil pressure. Jumps to about 20 at start up and drops to 0, jumps to about 25 under load/ driving and drops back to 0 at stop. Replaced sensor with GM unit and no change. Does this vehicle have an oil sensor filter screen?
     
  2. SnowDrifter

    SnowDrifter Full Access Member

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    Hook up a mechanical gauge, go from there. It'll rule out any electronical bits

    Also: It's common for the pickup tube o-ring to leak and cause the pump to suck air.

    I would avoid driving the vehicle until this is sorted
     
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  3. clandr1

    clandr1 Full Access Member

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    Last edited: Nov 13, 2018
  4. swathdiver

    swathdiver Full Access Member

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    No it does not.

    It's probably the O-Ring, if that is fine check your camshaft bearings.
     

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