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way is there smut on my spark plugs my truck not idling
1990 Dodge Dakota

Way is there smut on my spark plugs my truck not idling

(1990 Dodge Dakota)
i put a new egr vaule on it
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Popular Answer
on October 22, 2014
black soot (dry) , it's running to rich. get diagnosed before damage is beyond repair.
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General Diagnosis
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on October 22, 2014
black soot (dry) , it's running to rich. get diagnosed before damage is beyond repair.
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