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July 1, 2011 Service bulletin

Gm service campaign: 2008-2009 trailblazer/envoy

Chevrolet technical service bulletin SC-11150 for 2008-2009 Chevrolet Trailblazer and 2008-2009 GMC Envoy.

Bulletin number
SC-11150
Component
Engine and engine cooling: exhaust system: manifold/header/muffler/tail pipe
Summary
Gm service campaign: 2008-2009 trailblazer/envoy. The vehicles may develop a crack in the exhaust manifold. It could result in increased exhaust noise. Rm

Owners of these vehicles have filed 51 complaints in the engine category.

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