Carbon tracking on spark plugs may cause misfires on Plymouth Neon

Submitted by Vehicle Owner · May 29, 2025
Published by RepairPal

Problem overview

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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Plymouth Neon vehicles with this problem

1 model year affected

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