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October 25, 2005 Service bulletin

Lower end engine knock noise

Chevrolet technical service bulletin 3479A for 2005 Chevrolet Silverado, 2005 Chevrolet Suburban and 2005 GMC Sierra and others.

Bulletin number
3479A
Component
Engine and engine cooling: engine
Summary
Lower end engine knock noise. Sc

Owners of these vehicles have filed 56 complaints in the engine category.

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