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November 1, 2001 Service bulletin

Some owners may comment on the service engine soon lamp being illiminated, a delayed transmission...

Chevrolet technical service bulletin 010604052 for 2002 Chevrolet Trailblazer, 2002 GMC Envoy and 2002 Oldsmobile Bravada.

Bulletin number
010604052
Component
Engine and engine cooling: engine: gasoline
Summary
Some owners may comment on the service engine soon lamp being illiminated, a delayed transmission downshift and/or excessive fan noise. Tt

Owners of these vehicles have filed 316 complaints in the engine category.

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