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- - Spark Plug Color (https://chevroletforum.com/forum/general-tech-10/spark-plug-color-16267/)

Natidonkryda

May 30th, 2008 2:09 PM

Spark Plug Color

So I pulled the spark plugs to check em and they are half brownish gray and half white!! One side of the plug hasnt even been touched or sparked. What causes this? Car runs fine.

old dog

May 30th, 2008 9:58 PM

RE: Spark Plug Color

the one's that are white are running leen

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