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» Carbon buildup at top of piston may cause noise
Dodge Ram Wagon B250
Report: Carbon buildup at top of piston may cause noise
Dodge Ram Wagon B250 Problem
Model Years Affected: 1990, 1991, 1992, 1993
Verified
One the 3.9L V6 and 5.9L V8 the carbon buildup on the top of the piston is common. As the buildup increases with mileage and over time, symptoms may vary from light ticking, to ticking/hammering, to hammering/knocking noises. Fuel injector cleaner often solves the problem.
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