Carbon buildup at top of piston may cause noise on Dodge Caravan

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

Problem overview

Carbon buildup on the top of the piston is common. As the buildup increases with mileage and over time, symptoms vary from light ticking, to ticking/hammering, to hammering/knocking noises. Fuel injector cleaner often solves the problem.

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