Where is the fuel filter in a 1978 Chevy Impala?

The fuel filter location on a 1978 Chevy Impala depends on the engine. There wasn't a standardized location across all engine options. You'll need to consult a repair manual specific to your Impala's engine (e.g., a small block 305, a big block 400, etc.).

These manuals will show diagrams and pinpoint the filter's exact position. A Haynes or Chilton manual for your year and model will be incredibly helpful. You can usually find these at auto parts stores or online.

Without knowing the engine type, it's impossible to give a precise location. It could be near the fuel pump, on the frame rail, or even integrated into the fuel pump itself depending on the configuration.