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Spark Plugs – Ash Fouled

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A build-up of combustion deposits stemming primarily from the burning of oil and/or fuel additives during normal combustion … normally non-conductive. When heavier deposits are allowed to accumulate over a longer mileage period, they can “mask” the spark, resulting in a plug misfire condition.

 ash_fo7

More information On Basic Car Maintenance CD Rom
Information supplied by Champion Sparkplugs ©2000

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