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January 1, 2004 Service bulletin

Exhaust moan vibration

Chevrolet technical service bulletin 01531 for 2004 Chevrolet Silverado and 2004 GMC Sierra.

Bulletin number
01531
Component
Engine and engine cooling: exhaust system
Summary
Exhaust moan vibration. Sit bulletin 1408514. Tt

Owners of these vehicles have filed 40 complaints in the engine category.

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