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06 5.3, 112k, loud clatter at 2k rpm

doug2u

By doug2u
November 22, 2011 in Maintenance, Oils/Fluids, Detailing & Rust Prevention

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doug2u

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doug2u

Posted November 22, 2011

Posted November 22, 2011

06 Sierra, 5.3, 112k miles. Recently noticed

Quite a loud clatter from the lower end of the

motor from 1700 thru 2000 rpm's. Hot, cold,

no diff. Regular oil changes. Changed yesterday

with 2 qts of Lucas. No change yet. Any thoughts?

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