Q: How to Replace a Fuel Pump and Fuel Level Sending Unit?A: Depressurize the fuel system and disconnect the battery. Remove the fuel pump and fuel level sensor from the tank. Disconnect the fuel level sensor and separate it from the pump bracket. Detach the sensor from the filter housing and remove the case. Disconnect the fuel supply line and discard the 0-ring. Disconnect the pump wiring and ground wire. Remove the pressure regulator housing, ground wire, retaining clip, and 0-rings. Inspect the spacer and filter screen. Remove the fuel pump and discard the 0-ring. Remove the suction filter and clean the strainer. Reassemble the pump, filter, and fuel level sensor with new 0-rings and retainer clip. Reconnect the battery, start the engine, and check for leaks.