Carbon tracking on spark plugs may cause misfires on Plymouth Neon

The engine may develop misfires when accelerating up a grade or when carrying a heavy load. This can be from carbon tracking that has developed on the spark plugs causing the plug to not fire (misfire). The engine will run roughly and lose power.

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Average mileage: (–)
1 model year affected: 1995
1 person reported this problem
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