Changing the fuel pump in 2002 escalade?

To change the fuel pump in a 2002 Cadillac Escalade, first, relieve the fuel system pressure by removing the fuel pump relay and starting the engine until it stalls. Next, disconnect the negative battery terminal and remove the fuel tank, which may require lowering it to access the pump. Once the tank is down, disconnect the wiring harness and fuel lines from the pump assembly, replace the old pump with the new one, and reassemble everything in reverse order. Ensure to check for leaks and proper operation before starting the vehicle.