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July 1, 2008 Service bulletin

Gmc: oil leak at turbocharger air intake pipe

Chevrolet technical service bulletin PIP-4372B for 2007-2009 Chevrolet Silverado, 2007-2009 GMC Sierra and 2007-2009 Chevrolet Express and others.

Bulletin number
PIP-4372B
Component
Engine and engine cooling: engine: other fuel types: turbo/supercharger
Summary
Gmc: oil leak at turbocharger air intake pipe. Initial inspection ma reveal a leak that looks as it is coming from the rear of the engine.

Owners of these vehicles have filed 57 complaints in the engine category.

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