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2000-2014 Duramax, Diesel, & Drivetrain

All GMT-800/900 diesel engine, transmission, and drivetrain specific discussion. Focusing on the 6,6L Duramax V8 & somewhat the 6.0L gas engine. Includes RPO coded engines, LB7, LLY, LMM, LMK, LML, & LGH


553 topics in this forum

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  1. Rear window

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  2. Dpf trouble

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  3. Suspension help

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  4. P2563 and P003A

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  5. 4,000 mile trip coming LBZ wierd random miss

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  6. Blower motor housing

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  7. Error message

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  8. Door stuck shut

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