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    John Sears's Avatar
    John Sears Posts: 1, Reputation: 1
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    #1

    Jun 15, 2012, 05:48 PM
    Piston noises
    What causes a slapping noise coming from the piston area?
    smoothy's Avatar
    smoothy Posts: 25,490, Reputation: 2853
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    #2

    Jun 15, 2012, 05:55 PM
    Quote Originally Posted by John Sears View Post
    What causes a slapping noise coming from the piston area?
    Bad things.. Worn cylinder, worn piston, worn rod bushing or bearing... or a combination of those.

    But if you aren't good at diagnosing where sounds come from.. it could be a partially collapsed lifter or bad cam lobe too. Those are actually less serious.
    TxGreaseMonkey's Avatar
    TxGreaseMonkey Posts: 16,761, Reputation: 5597
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    #3

    Jun 16, 2012, 05:59 AM
    Piston slap = connecting rod issue
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