Q: How to remove the Fuel Pump/Fuel Pressure Regulator/Fuel Level Sending Unit Assembly?
A: To replace the fuel pump/fuel pressure regulator/Fuel Level Sensor, start by relieving the system fuel pressure and disconnecting the negative battery terminal. Then, remove the Fuel Tank and disconnect the fuel delivery line quick-connect fitting and electrical connector from the assembly. Before removing the assembly, make alignment marks on the mounting flange and fuel tank for correct realignment during installation. Loosen the locknut securing the assembly using a brass punch and hammer, and carefully lift it from the fuel tank, being mindful of the float arm and fuel pump inlet strainer. Inspect the inlet strainer and clean or replace if necessary. Finally, reinstall the assembly and tighten the locknut securely.
Q: How to Replace the Fuel Pump/Fuel Level Sending Unit Assembly?
A: Remove the fuel pump/Fuel Pressure Regulator/Fuel Level Sensor. Disconnect the electrical connector and remove the wedge lock. Using a terminal removal tool, disengage each terminal and pull out the wire. Align the locking lugs on the sending unit with the cutouts in the rails and slide the sending unit to the left. Lift off the sending unit. Installation is the reverse of removal.
A: Check the battery, fuel filter, fuel line, hoses, and quick-connect fittings for leaks. Use a fuel pressure gauge to check the fuel pressure. If higher than specified, replace the Fuel Pressure Regulator. If lower, inspect the fuel delivery lines and hoses. Inspect the fuel pump inlet strainer for restrictions. If all components are okay, replace the fuel pump. Check the fuel pump fuse and relay. If the fuse and relay are good but the fuel pump still doesn't operate, inspect the fuel pump circuit.