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January 1, 2004 Service bulletin

Vibration at idle and/or rough idle

Chevrolet technical service bulletin 3112 for 2004 Chevrolet Colorado and 2004 GMC Canyon.

Bulletin number
3112
Component
Engine and engine cooling: engine
Summary
Vibration at idle and/or rough idle. (extended crew cabs only). Jb

Owners of these vehicles have filed 38 complaints in the engine category.

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