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In the 2014 Chevrolet Impala, the fuel filter is situated inside the fuel tank, incorporated into the fuel pump assembly as a single unit. While it cannot be replaced individually since it's a permanent component, it is designed to last the lifetime of the vehicle. If you experience symptoms indicating a fuel filter issue, such as error code P16D0 on your OBD-II scan tool, it might be related to an internal engine oil leak according to an older technical service bulletin. Alternatively, you should consider inspecting the fuel pressure sensor or the fuel pump assembly itself, as the fuel pumps in the '14 Impala are known to have premature failures.
Instructions for replacing the fuel filter
The fuel filter for the 2014 Chevy Impala is located inside the gas tank and cannot be replaced.