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Old 05-05-2019, 02:14 PM   #2
Steeveedee
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Join Date: Jan 2013
Location: Simi Valley, CA
Posts: 10,946
Re: Help identifying pinging/rattling

Do you have an H- or X-pipe? If so, you could try blocking that side of the exhaust and see if the noise goes away. It could be a loose baffle in the muffler.
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'70 Chevy 3/4T Longhorn CST 402/400/3.56 Custom Camper

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