Question about 2002 Chevrolet Silverado 1500

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When I first start my truck in the morning the rattling is probably the worst. As the pipe heats up the noise subsides. It appears to be on the inside near the catalytic converter everything else is tight.

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Possibly an exhaust o-ring gasket leaking.

Or the rattling I have in my 02 silverado caused by "Piston Slap" GM motor defect. Google search piston slap for more on that. Mine has been doing it since almost new.

Posted on Jul 05, 2010

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