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  1. #1
    Junior Member
    Join Date
    Oct 2017
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    Fresno
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    1

    White
    2008 Grand Prix gxp

    Question low oil pressure

    I recently changed heads on my 08 Pontiac Grand Prix gxp. The heads are rebuilt and surfaced, not the ones I took off. I put its back together and started it, but it started easily and started clattering and the low oil pressure indicator came on. I need help with this please anyone have any idea?

  2. #2
    Veteran pajeff02's Avatar
    Join Date
    Feb 2009
    Location
    Mansfield, PA
    Posts
    22,146

    Black & Blue
    '02 WS.6 / '07 Suburban

    Check to see if the oil pressure sensor on the back of the engine, driver side, got snapped off during the swap.

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