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May 24, 2021 Service bulletin

This service bulletin provides diagnostic aid procedure to perform inspections to determine if the engine...

Chevrolet technical service bulletin 19NA256 for 2008-2013 Chevrolet Malibu, 2012-2020 Chevrolet Impala and 2008-2017 Chevrolet Equinox and others.

Bulletin number
19NA256
Component
Engine and engine cooling
Summary
This service bulletin provides diagnostic aid procedure 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 8,671 complaints in the engine category.

Vehicles covered

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