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October 16, 2023 Service bulletin

Fuel system, gasoline

Chevrolet technical service bulletin PIP4964E for 2012-2020 Chevrolet Impala, 2008-2017 Chevrolet Equinox and 2008-2024 GMC Acadia and others.

Bulletin number
PIP4964E
Component
Fuel system, gasoline
Summary
This Preliminary Information communication provides information to the technician about vehicles that have a Service Engine Soon Malfunction Indicator Lamp on. Technician will find Diagnostic Trouble Code P2097 or P2099. Technician will need to perform an injector balance or Active Fuel Injector Tester prior to going further. Technician will also need to check for a small leak in the exhaust if published Service Information diagnostics does not lead to a resolution.

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