2019 Subaru Ascent BaseFACTORY OEM SERVICE PROCEDURE

High-Pressure Fuel Pump

  1. Install the fuel pump lifter to the high-pressure fuel pump case.
    NOTE:
    • Apply engine oil to the side of the high-pressure fuel pump case and to the bottom surface of the fuel pump lifter.
    • After installing the fuel pump lifter, rotate the crankshaft in order to set the fuel pump lifter comes to the lowest position.
    G13198257Courtesy of SUBARU OF AMERICA, INC.
  2. Set a new O-ring, using TORX PLUSĀ® 40IP, install the high-pressure fuel pump.

    Tightening torque:Ā 

    21 N.m (2.1 kgf-m, 15.5 ft-lb)

  3. Connect the connector (A) to the high-pressure fuel pump.
    G13198258Courtesy of SUBARU OF AMERICA, INC.
  4. Install the high-pressure fuel delivery pipe. Ref. to FUEL INJECTION (FUEL SYSTEMS) (H4DOTC)>HIGH PRESSURE FUEL DELIVERY PIPE>INSTALLATION>HIGH-PRESSURE FUEL DELIVERY PIPEĀ .
  5. Connect the battery ground terminal. Ref. to REPAIR CONTENTS>NOTE>BATTERY .
Factory Service Tools

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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.

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