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March 1, 2015 Service bulletin

General motors: 2004-2007 buick rainer, chevrolet, gmc , hummer , oldsmobile , saab 97X

GMC technical service bulletin PIP4581B for 2012 GMC Envoy, 2010 Hummer H3 and 2004-2007 Buick Rainier.

Bulletin number
PIP4581B
Component
Engine
Summary
General motors: 2004-2007 buick rainer, chevrolet, gmc , hummer , oldsmobile , saab 97x. Customers complain of engine rattled after engine repairs which required crankshaft balancer removal & replacement. Lj

Owners of these vehicles have filed 23 complaints in the engine category.

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