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Thread: 5.3 oil pan cracks

  1. #1
    Join Date
    Mar 2017

    5.3 oil pan cracks

    I am in the process of removing the sludge from my 5.3 2004 Tahoe. My castech heads went bad around 130K. I pulled my oil pan and noticed there are several hairline cracks on the inside. The outside looks good and I wasn't leaking oil before I pulled it. Any advise as to whether I should replace it? Is this normal?

    see pic:
    Last edited by Gooman; 03-06-2017 at 08:04 PM.

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