Why would spark plugs 1 & 4 be clean and 2 and 3 be carboned up?

Asked by Jan 27, 2007 at 04:28 PM about the 1998 Chevrolet Cavalier Base

Question type: Maintenance & Repair

1 Answer

17,815

Hello, I'm not sure about the uneven wear particular to the 1998 Cavalier, but here is some information on uneven spark plug wear in general: http://star-motoring.com/news/story.asp?file=/2005/12/4/ms_features/12109591&sec=ms_features Best of luck! CarGrrl

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