Question about 2002 Nissan Altima

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Engine makes smacking noise when accelerated between 1500 and 2000 rpm's

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Sounds like a restricted exhaust
quite possibly the cat
disconnected the exhaust and retest

Posted on Sep 17, 2010

  • Sean Reisdorf
    Sean Reisdorf Sep 17, 2010

    ignore my last... submitted right answer to the wrong question

    yours sounds like a "piston" or "rod" knock
    by a mechanic stethoscope to isolate and diagnose the noise

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