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HOMESERVICE MANUALSSUBARU2022IMPREZA BASE, 4D SEDAN, AUTOMATIC CVT TRANSREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 5 (FUEL INJECTION SYSTEM (HEV))FUEL PUMPINSTALLATION
2022 Subaru Impreza Base, 4D Sedan, Automatic CVT Trans

Fuel Pump: Installation

2022 Subaru Impreza Base, 4D Sedan, Automatic CVT TransSECTION Installation
WARNING: This page is about a different car, the 2022 Subaru Crosstrek. However, it is still accessible from the selected car via links, so may be relevant.
  1. Install a new gasket to the fuel tank.
    G13231021Courtesy of SUBARU OF AMERICA, INC.
  2. Set the protrusion on the fuel pump flange between the claw (A) and claw (B) of the lower plate.
    CAUTION:

    Set the arm and float of the fuel level sensor while paying attention to prevent them from contacting the fuel tank. If the arm of the fuel level sensor is bent, the fuel gauge may not read correctly. 

    G13231022Courtesy of SUBARU OF AMERICA, INC.
  3. Using the ST, install the upper plate.
    CAUTION:
    • Be careful not to damage the fuel delivery tube with the ST. 
    • Rotate until the rotation stopper rib of the upper plate completely goes beyond the expected position. 
    • There should be no twisting or pinch of the gasket. 

    Preparation tool: 

    ST1: ST FUEL PUMP (42099FL000)

    ST2: ST CAM (42099FL010)

    G13231023Courtesy of SUBARU OF AMERICA, INC.
  4. Connect the fuel delivery tube. Ref. to FUEL INJECTION (FUEL SYSTEMS) (H4DO(HEV))>FUEL DELIVERY AND EVAPORATION LINES>INSTALLATION>QUICK CONNECTOR CONNECTION (TYPE D) .
  5. Set the harness protector to the upper plate, slide the harness protector in the direction of the arrow, and install the harness protector.
    CAUTION:
    • Slide until the rotation stopper hook (c) of the harness protector is completely locked. 
    • The front mark (b) should face the front side of the vehicle. 
    G13934321Courtesy of SUBARU OF AMERICA, INC.
  6. Connect the connector to the fuel pump.
    CAUTION:

    Before connecting, make sure that there are no foreign matters, water, etc. inside the connectors of fuel pump and harness. If any foreign matters, water, etc. are found, remove them with air blow and connect the connector after it has dried completely. 

    G13230972Courtesy of SUBARU OF AMERICA, INC.
  7. Install the service hole cover of fuel pump.
    G13230971Courtesy of SUBARU OF AMERICA, INC.
  8. Install the rear seat cushion. Ref. to SEATS>REAR SEAT>INSTALLATION .
  9. Connect the battery ground terminal. Ref. to REPAIR CONTENTS>REPAIR CONTENTS>NOTE>BATTERY .
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.