2008 Duramax Fuel Line Diagram -

1. Overview The 2008 Chevrolet Silverado/GMC Sierra 2500/3500 HD equipped with the 6.6L Duramax LMM diesel engine utilizes a high-pressure common rail fuel system. Understanding the fuel line routing is critical for diagnosing leaks, performing injector replacements, or servicing the fuel filter housing.

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