Genuine Subaru Legacy Fuel Pump

Subaru Legacy Fuel Pump Parts Questions & Answers

• Fuel Pump Module Assembly
  42021AE02A
  Q: How to Replace the Fuel Pump, Fuel Level Sending Unit, and Fuel Filter?

  A: Unplug the battery and alleviate fuel system pressure. Remove the fuel pump/level sensor from the tank. Separate the pump and holder from the assembly, disconnect the pump's electrical connector, remove the pump and disconnect the inlet strainer tube. To replace the level sensor, release the locking pawls with a screwdriver, disconnect the ground wire and electrical connectors, and remove the sensor. To replace the filter, pry the tabs away and remove the filter. Reverse the process for installation.
• Fuel Pump Assembly
  42021AE03A
  Q: How to Remove and Install a Fuel Pump/Fuel Level Sending Unit?

  A: Depressurize the fuel system and disconnect the battery. Remove the rear seat, floor mat, and access plate. Disconnect the fuel pump connector and both fuel hoses. Remove the jet pump hose and fuel pump assembly. Replace old pump gaskets, clean the pump inlet, and install with a new gasket. Reassemble in reverse order and check for leaks after running the engine.
• Fuel Pump
  42022AG15A
  Q: How to check Fuel Pump and fuel pressure?

  A: To inspect the fuel system, remove the fuel cap and turn the ignition key to ON. If no sound is heard, check the fuel pump fuse and trace the circuit for a short. Remove the relay of the fuel pump and look for the battery voltage. Unplug the fuel pump connector at the tank and look for voltage with the ignition turned on. Relieve fuel pressure, disconnect the negative battery cable, and insert the fuel pressure gauge between the fuel hose and filter inlet pipe. Start the engine and compare pressure readings with the Specifications. If incorrect, check for vacuum at the fuel pressure regulator, a Fuel Filter or line restriction, or a blocked fuel return hose. After testing, relieve pressure, take out the gauge and connect the fuel line.