Question about 2002 Ford Windstar Cargo

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Why would I get a big chunk of carbon buildup on the sparkplugs with only 7000 miles on them and only on 3 of 6 of them. It's whitish beige in color and a quarter inch of buildup.

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  • Donald Tucker Mar 16, 2011

    Have you had a compression check done? The deposits on spark plugs are shown on a plug chart at the auto parts store. How many miles are on the engine? High miles could have caused wear on the valve guides. Does the engine smoke or use oil? Has the oil been changed frequently? A good service center could help you diagnose the reasons for the build up. I'm sorry that I can't be of more help online.



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That would be indication of weak spark (plug wires) you can test them if you have an ohm meter - anything over 8k ohms per foot - toss them. I would start there.

Posted on Mar 16, 2011


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Please rate my info.

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