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June 1, 2002 Service bulletin

Some customers may comment on a mild to severe engine ping (commonly referred to as spark knock) usually...

Chevrolet technical service bulletin 020604023A for 1999-2002 Chevrolet Tahoe, 1999-2002 Chevrolet Silverado and 1999-2002 Chevrolet Suburban and others.

Bulletin number
020604023A
Component
Engine and engine cooling: engine: gasoline
Summary
Some customers may comment on a mild to severe engine ping (commonly referred to as spark knock) usually worse during acceleration and / or an illuminated malfunction indicator lamp. Tt

Owners of these vehicles have filed 823 complaints in the engine category.

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