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October 1, 2004 Service bulletin

Mis-machined engine oil gallery - inspect/replace engine

Chevrolet technical service bulletin 040601027 for 2005 Chevrolet Silverado, 2005 GMC Sierra and 2005 GMC Savana.

Bulletin number
040601027
Component
Engine and engine cooling: engine
Summary
Mis-machined engine oil gallery - inspect/replace engine. Various 2005 models inclding chevrolet express. Nm actual service bulletin. Tt

Owners of these vehicles have filed 41 complaints in the engine category.

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