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2007 Chevrolet Silverado 1500

Question: all the spark plugs on driver side burning black

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Visitor, 5.3L V8, Thompson, ND, December 30, 2010, 12:26

all spark plugs are burning black on drivers 5.3 chev pickup 2007

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  • Answer #1

    ZeeTech December 30, 2010, 15:41
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     Master

    Looks like the driver side bank runs rich. Are the plugs looks good on the other bank?

    Zee

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