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March 15, 2023 Service bulletin

This service bulletin provides diagnostic aid information/procedures to perform inspections to determine...

Chevrolet technical service bulletin 19-NA-256 for 2008-2012 Chevrolet Malibu, 2012-2020 Chevrolet Impala and 2008-2017 Chevrolet Equinox and others.

Bulletin number
19-NA-256
Component
Engine and engine cooling
Summary
This service bulletin provides diagnostic aid information/procedures to perform inspections to determine if the engine needs to be replaced as opposed to just internal parts for knocking, rattle, squeak and/or squeal type noises from engine.

Owners of these vehicles have filed 8,435 complaints in the engine category.

Vehicles covered

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