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December 12, 2002 Service bulletin

Engine backfires with sufficient force to damage the engine air intake system and the air cleaner filter...

Chevrolet technical service bulletin 121202 for 1999-2000 Chevrolet C Series and 1999-2000 GMC C Series.

Bulletin number
121202
Component
Engine and engine cooling: engine
Summary
Engine backfires with sufficient force to damage the engine air intake system and the air cleaner filter element. Certain chevrolet and gmc medium duty trucks and school bus chassis. Tt

Owners of these vehicles have filed 3 complaints in the engine category.

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