Engine Knocking Noise problems of the 2001 Chevrolet C2500

Engine has a loud knocking noise since day one. Reported problem to Chevrolet dealership and was told that the pistons are "slapping" inside the cylinder walls and that this was a known problem from Chevrolet. New pistons will not be available until December 2001. Changed oil and found metal fragments in the oil that were stuck to the magnetic oil bolt. Noise problem is getting louder each week. Dealer rep called and explained the problem to me directly.

Reported a loud knocking noise when you crank up the engine since I first bought truck. Reported problem to dealer and was told the pistons are "slapping" inside the cylinder walls due to a known problem that Chevrolet already knows about it and replacement pistons would be available by December. Engine is getting louder by the day and found broken metal fragments when oil was changed . Waiting on dealer to respond to this issue and requesting engine be replacement now.