I have a 2006 Chevrolet Silverado with 4.3 v6. I get a pinging or tapping only when the engine is warmed up and under light to moderate acceleration in 2nd, 3rd or 4th gear (automatic). Any idea?

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ScottyKilmer
ScottyKilmer

Editor

worn engine is typical on those with a V6, baby it or try higher octane gasoline

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