How do you replace a fuel pump in a 1992 Cadillac Seville 4.9?

To replace the fuel pump in a 1992 Cadillac Seville with a 4.9L engine, first, relieve the fuel system pressure by removing the fuel pump relay and starting the engine until it stalls. Disconnect the battery, then access the fuel pump by removing the rear seat and the fuel pump access cover. Disconnect the fuel lines and electrical connector, then unscrew the pump from its housing and replace it with the new unit. Reassemble everything in reverse order, ensuring all connections are secure before reconnecting the battery and testing the system.