2020 Subaru WRX BaseFACTORY OEM SERVICE PROCEDURE

Pipe Assembly: Removal

  1. Disconnect the ground terminal from battery.
  2. Remove the under cover. Refer to EXTERIOR/INTERIOR TRIM>FRONT UNDER COVER>REMOVAL .
  3. Remove the front crossmember support plate. Refer to FRONT SUSPENSION>FRONT CROSSMEMBER SUPPORT PLATE>REMOVAL .
  4. Remove the one pipe joint at the center of the gearbox, and connect the vinyl hose to the pipe and the joint. Discharge the fluid by turning the steering wheel fully clockwise and counter clockwise. Discharge the fluid similarly from other pipes.
    G13648457Courtesy of SUBARU OF AMERICA, INC.
  5. Remove the clamp E from return hose and pressure hose.
    G13648458Courtesy of SUBARU OF AMERICA, INC.
  6. Disconnect the return hose from return pipe and disconnect the pressure hose from feed pipe.
    G13648459Courtesy of SUBARU OF AMERICA, INC.
  7. Remove the air intake duct. Refer to INTAKE (INDUCTION) (STI)>AIR INTAKE DUCT>REMOVAL .
  8. Disconnect the suction hose and pressure hose from oil pump.
    G13648460Courtesy of SUBARU OF AMERICA, INC.
  9. Disconnect the suction hose and return hose from the reservoir tank.
    G13648461Courtesy of SUBARU OF AMERICA, INC.
  10. Remove the hose bracket and take out the hose assembly from vehicle.
    G13648462Courtesy of SUBARU OF AMERICA, INC.
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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