2018 Subaru Crosstrek Base, Automatic CVT TransFACTORY OEM SERVICE PROCEDURE

Intake Manifold Assembly: Installation

  1. When installing fuel pipe protector No. 2 (Crosstrek model)
    1. Set the fuel pipe protector No. 2.
      G12391361Courtesy of SUBARU OF AMERICA, INC.
    2. Install the camshaft position sensor (intake LH side). Ref. to FUEL INJECTION (FUEL SYSTEMS) (H4DO)>Camshaft Position Sensor>INSTALLATION>INTAKE SIDE .
  2. Connect the fuel delivery tube (B) to the fuel pipe. 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) to the fuel pipe. Ref. to FUEL INJECTION (FUEL SYSTEMS) (H4DO)>Fuel Delivery and Evaporation Lines>INSTALLATION>QUICK CONNECTOR CONNECTION (TYPE B) .
    G11252796Courtesy of SUBARU OF AMERICA, INC.
  4. Connect the fuel delivery pipe to the high-pressure fuel pump. Ref. to FUEL INJECTION (FUEL SYSTEMS) (H4DO)>Fuel Delivery and Evaporation Lines>INSTALLATION>QUICK CONNECTOR CONNECTION (TYPE C) .
    G11252795Courtesy of SUBARU OF AMERICA, INC.
  5. Install the cylinder head plate to the cylinder head.
    G11252794Courtesy of SUBARU OF AMERICA, INC.
  6. Set a new gasket and install the intake manifold assembly.
    NOTE: Be careful not to let the engine wiring harness be caught by the parts.

    Tightening torque: 

    25 N.m (2.5kgf-m, 18.4ft-lb) 

    • RH side
      G11252792Courtesy of SUBARU OF AMERICA, INC.
    • LH side
    G11252793Courtesy of SUBARU OF AMERICA, INC.
  7. Install the fuel pipe protector No. 1 together with the fuel pipe protector No. 2. (Crosstrek model)

    Tightening torque: 

    19 N.m (1.9kgf-m, 14.0ft-lb) 

    G12391355Courtesy of SUBARU OF AMERICA, INC.
  8. Connect the connector (A) to the tumble generator valve LH.
  9. Install the clip securing the engine wiring harness.
    G12391353Courtesy of SUBARU OF AMERICA, INC.
  10. Install the harness protector.
    NOTE: Make sure 2 claws (C) are securely engaged in each position.
  11. Install the clip (B) securing the battery cables.
  12. Connect the brake booster vacuum hose (A).
    G11252790Courtesy of SUBARU OF AMERICA, INC.
  13. Connect the connector (A) to the EGR control valve.
  14. Install the fuel delivery tube.
    G12391351Courtesy of SUBARU OF AMERICA, INC.
  15. Secure the battery cable with the clip (A) and clip (B) in place. (Fixed capacity A/C model)
  16. Connect the connector (C), connector (D), and the terminal (E). (Fixed capacity A/C model)

    Tightening torque: 

    15.5N.m (1.6kfg-m, 11.4ft-lb) 

    G11252805Courtesy of SUBARU OF AMERICA, INC.
  17. Secure the battery cable with the clip (A) and clip (B) in place. (Variable capacity A/C model)
  18. Connect the connector (C), connector (D), connector (E), and the terminal (F). (Variable capacity A/C model)

    Tightening torque: 

    15.5N.m (1.6kfg-m, 11.4ft-lb) 

    G11252806Courtesy of SUBARU OF AMERICA, INC.
  19. Install the V-belt cover.

    Tightening torque: 

    7 N.m (0.7kgf-m, 5.2ft-lb) 

  20. Set a new gasket, and install the stud bolts (B) using TORX® E8.

    Tightening torque: 

    5 N.m (0.5kgf-m, 3.7ft-lb) 

  21. Install the nut (A) securing the EGR cooler to the EGR control valve.

    Tightening torque: 

    19 N.m (1.9kgf-m, 14.0ft-lb) 

  22. Tighten the bolt (C) which secures the EGR cooler to the cylinder head RH.

    Tightening torque: 

    6.4N.m (0.7kgf-m, 4.7ft-lb) 

    G11252785Courtesy of SUBARU OF AMERICA, INC.
  23. Connect the connector (A) to the tumble generator valve RH.
  24. Install the fuel delivery tube clamp (B).
  25. Install the clip (C) securing the engine wiring harness.
    G11252784Courtesy of SUBARU OF AMERICA, INC.
  26. Connect the preheater hose (A) to the throttle body, and connect the connector (B).
  27. Connect the connector (C) to the manifold absolute pressure sensor.
  28. Connect the connector (D) to the purge control solenoid valve, and install clip (E).
  29. Connect the evaporation hose (F) to the purge control solenoid valve.
  30. Connect the PCV hose (G).
  31. Install the bolt (H) securing the fuel pipe.

    Tightening torque: 

    6.4N.m (0.7kgf-m, 4.7ft-lb) 

    G11252783Courtesy of SUBARU OF AMERICA, INC.
  32. Install the air intake boot. Ref. to INTAKE (INDUCTION) (H4DO)>Air Intake Boot>INSTALLATION .
  33. Install the battery. Ref. to STARTING/CHARGING SYSTEMS (H4DO)>Battery>INSTALLATION .
  34. Fill engine coolant. Ref. to COOLING (H4DO)>Engine Coolant>REPLACEMENT>FILLING OF ENGINE COOLANT .
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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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