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September 1, 2005 Service bulletin

Information on 4.3L engine front crankshaft pulley appearing to be out of round (normal condition)

Chevrolet technical service bulletin 050601029 for 2006 Chevrolet Silverado 1500, 2006 GMC Sierra 1500 and 2005 Chevrolet Silverado and others.

Bulletin number
050601029
Component
Engine and engine cooling: engine
Summary
Information on 4.3l engine front crankshaft pulley appearing to be out of round (normal condition). Tt

Owners of these vehicles have filed 69 complaints in the engine category.

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