Silverado 3500 2WD V8-6.6L DSL Turbo VIN 2 (2004)
Aftermarket companies have developed a replacement performance/economy fuel injector nozzle. Refer to above illustration. The performance/economy
fuel injector nozzles replace the OEM fuel injector nozzles. The aftermarket companies claim increased horsepower, improved fuel atomization, lower
exhaust gas temperatures and increase fuel economy. This may cause additional fuel related driveability concerns and may cause internal engine damage
to the pistons and fuel injector nozzles.
Identifying Overpower Engine Premature Wear and Breakdown
When premature wear and breakdown is encountered due to an aftermarket power-up device, it has some very specific characteristics to the internal
engine components. The following list will assist in identifying these characteristics as you tear down the engine.
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Pistons will be cracked in the lip area, or a hole in the pistons.
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Pistons can also be melted on the lip of the combustion bowl, or the top of the pistons can be melted.
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Crosshatch will be polished off the cylinder wall in the major thrust face of cylinder below ring belt travel.
