Check Engine Light Due to Carbon Buildup on Valves on Dodge Magnum

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

Problem overview

Carbon buildup on the valves may illuminate the Check Engine Light, indicating "Multiple Cylinder Misfires." The combustion chamber must be cleaned of carbon. There are updated valve spring retainers that will help prevent a recurrence.

28 people reported this problem
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Dodge Magnum vehicles with this problem

Average mileage: 148,000 miles
(120,000 - 164,000)

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