Carbon buildup on the top of the piston is common. Over time this can lead to symptoms varying from light ticking to knocking noises. Performing a fuel injector cleaning procedure can often help the condition by removing some of the piston top deposits.
Engine Knocking Noise From Carbon Buildup on Dodge D350
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The pickup is a 1979 dodge the engine is a 383 I need the engine replaced. The Truck is in Lake...