2025 Subaru Outback BaseFACTORY OEM SERVICE PROCEDURE

Intake Manifold Assembly: Installation

  1. Install the clip (C) to the fuel pipe.
  2. Connect the fuel delivery tube (B). Ref. to FUEL INJECTION (FUEL SYSTEMS) (H4DO)>FUEL DELIVERY AND EVAPORATION LINES>INSTALLATION>QUICK CONNECTOR CONNECTION (TYPE A) .
  3. Connect the fuel delivery pipe (A). Ref. to FUEL INJECTION (FUEL SYSTEMS) (H4DO)>FUEL DELIVERY AND EVAPORATION LINES>INSTALLATION>QUICK CONNECTOR CONNECTION (TYPE B) .
    G13618376Courtesy of SUBARU OF AMERICA, INC.
  4. Connect the fuel delivery pipe. Ref. to FUEL INJECTION (FUEL SYSTEMS) (H4DO)>FUEL DELIVERY AND EVAPORATION LINES>INSTALLATION>QUICK CONNECTOR CONNECTION (TYPE C) .
    G13618375Courtesy of SUBARU OF AMERICA, INC.
  5. Install the cylinder head plate.
    G16382796Courtesy of SUBARU OF AMERICA, INC.
  6. Set a new gasket and install the intake manifold assembly.
    CAUTION:
    • Install the intake manifold assembly so that it is not damaged by adjacent parts.
    • Be careful not to let the engine wiring harness be caught by the parts.

    Tightening torque: 

    25 N.m (2.5 kgf-m, 18.4 ft-lb)

    G13618371Courtesy of SUBARU OF AMERICA, INC.
  7. Install the fuel delivery tube.
    G13223842Courtesy of SUBARU OF AMERICA, INC.
  8. Temporarily install the fuel pipe protector, and tighten the bolts.

    Tightening torque: 

    19 N.m (1.9 kgf-m, 14.0 ft-lb)

    G13618369Courtesy of SUBARU OF AMERICA, INC.
  9. Place the engine wiring harness and secure the engine wiring harness to the bracket with the claw (A).
  10. Set the battery cable assembly, and secure the battery cable assembly to the bracket with claw (B).
    G13618383Courtesy of SUBARU OF AMERICA, INC.
  11. Install the engine wiring harness to the clip (C), and connect the connector (B) to the main fuse box.
  12. Connect connector (A) to ECM. Ref. to FUEL INJECTION (FUEL SYSTEMS) (H4DO)>ENGINE CONTROL MODULE (ECM)>INSTALLATION .
    G16382789Courtesy of SUBARU OF AMERICA, INC.
  13. Connect the connector (A).
  14. Hold the engine wiring harness with a new clip (B).
    NOTE: Install the clip while aligning the alignment mark of the engine wiring harness.
    G13618385Courtesy of SUBARU OF AMERICA, INC.
  15. Secure the battery cable assembly with the claw (D) and clip (C).
  16. Install the engine wiring harness to the clip (B), and connect the connector (A).
    G16334687Courtesy of SUBARU OF AMERICA, INC.
  17. Connect the connector (A) and connector (B).
    G13618363Courtesy of SUBARU OF AMERICA, INC.
  18. Secure the battery cable assembly with the clip (A) and clip (B).
  19. Connect the connector (C), connector (D), connector (E) and the terminal (F).
    CAUTION: When connecting terminal (F), as residual anti-rust grease or dirt on the threads (bolts and nuts), terminals and seating surfaces may cause overtorque, clean and degrease them before connecting.

    Tightening torque: 

    15.5 N.m (1.6 kfg-m, 11.4 ft-lb)

  20. After connecting terminal (F), apply a thin coat of anti-rust grease to the terminal section.
    CAUTION: This procedure is required to prevent rust and suppress sulfation.
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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.