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March 1, 1997 Service bulletin

Knock, rattle or tap noise from the engine before the engine has reached operating temperature or under...

Chevrolet technical service bulletin 776001 for 1994-1997 Chevrolet S10, 1994-1997 Chevrolet Cavalier and 1994-1996 Buick Century and others.

Bulletin number
776001
Component
Engine and engine cooling: engine
Summary
Knock, rattle or tap noise from the engine before the engine has reached operating temperature or under light load conditions at operating temperature knock, rattle or tap noise from the engine before the engine has reached operating temperature or under light load conditions at rature (replace piston and/or rod assemblies). Tw

Owners of these vehicles have filed 940 complaints in the engine category.

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