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Home >> Subaru >> 2017 >> Impreza Base, 4D Sedan, Automatic CVT Trans >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Fuel Injection System >> Intake Manifold Assembly >> Installation
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Intake Manifold Assembly: Installation

  1. 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) .
  2. 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) .
    Fig 1: Identifying Fuel Delivery Tube And Pipe
    G11252796Courtesy of SUBARU OF AMERICA, INC.
  3. 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) .
    Fig 2: Locating High Pressure Pump Fuel Delivery Pipe Connector
    G11252795Courtesy of SUBARU OF AMERICA, INC.
  4. Install the cylinder head plate to the cylinder head.
    Fig 3: Locating Cylinder Head Plates
    G11252794Courtesy of SUBARU OF AMERICA, INC.
  5. 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 (2.5 kgf-m, 18.4 ft-lb)

    • RH side
      Fig 4: Locating Intake Manifold Assembly Bolts (RH)
      G11252792Courtesy of SUBARU OF AMERICA, INC.
    • LH side
      Fig 5: Locating Intake Manifold Assembly Bolts (LH)
      G11252793Courtesy of SUBARU OF AMERICA, INC.
  6. Install the fuel pipe protector.

    Tightening torque: 

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

  7. Connect the connector (A) to the tumble generator valve LH.
  8. Install the clip (B) securing the engine wiring harness.
    Fig 6: Identifying Tumble Generator Valve Connector And Engine Wiring Harness Clip
    G11252791Courtesy of SUBARU OF AMERICA, INC.
  9. Install the harness protector.
    NOTE: Make sure 2 claws (C) are securely engaged in each position.
  10. Install the clip (B) securing the battery cables.
  11. Connect the brake booster vacuum hose (A).
    Fig 7: Identifying Battery Cable Clip And Brake Booster Vacuum Hose
    G11252790Courtesy of SUBARU OF AMERICA, INC.
  12. Connect the connector (A) to the EGR control valve.
  13. Install the fuel delivery tube.
    Fig 8: Locating EGR Control Valve Connector
    G11252789Courtesy of SUBARU OF AMERICA, INC.
  14. Secure the battery cable with the clip (A) and clip (B) in place. (Fixed capacity A/C model)
  15. Connect the connector (C), connector (D), and the terminal (E). (Fixed capacity A/C model)

    Tightening torque: 

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

    Fig 9: Identifying Battery Cable Clips, Connector And Terminal (Fixed Capacity A/C)
    G11252805Courtesy of SUBARU OF AMERICA, INC.
  16. Secure the battery cable with the clip (A) and clip (B) in place. (Variable capacity A/C model)
  17. Connect the connector (C), connector (D), connector (E), and the terminal (F). (Variable capacity A/C model)

    Tightening torque: 

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

    Fig 10: Identifying Battery Cable Clips, Connector And Terminal (Variable Capacity A/C)
    G11252806Courtesy of SUBARU OF AMERICA, INC.
  18. Install the V-belt cover.

    Tightening torque: 

    7 N.m (0.7 kgf-m, 5.2 ft-lb)

  19. Set a new gasket, and stud bolt (B) using TORX® E8.

    Tightening torque: 

    5 N.m (0.5 kgf-m, 3.7 ft-lb)

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

    Tightening torque: 

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

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

    Tightening torque: 

    6.4 N.m (0.7 kgf-m, 4.7 ft-lb)

    Fig 11: Identifying EGR Cooler Nuts And Bolts
    G11252785Courtesy of SUBARU OF AMERICA, INC.
  22. Connect the connector (A) to the tumble generator valve RH.
  23. Install the fuel delivery tube clamp (B).
  24. Install the clip (C) securing the engine wiring harness.
    Fig 12: Identifying Tumble Generator Connector, Fuel Delivery Tube Clamp And Engine Wiring Harness Clip
    G11252784Courtesy of SUBARU OF AMERICA, INC.
  25. Connect the preheater hose (A) to the throttle body, and connect the connector (B).
  26. Connect the connector (C) to the manifold absolute pressure sensor.
  27. Connect the connector (D) to the purge control solenoid valve, and install clip (E).
  28. Connect the evaporation hose (F) to the purge control solenoid valve.
  29. Connect the PCV hose (G).
  30. Install the bolt (H) securing the fuel pipe.

    Tightening torque: 

    6.4 N.m (0.7 kgf-m, 4.7 ft-lb)

    Fig 13: Identifying Intake Manifold Assembly Components
    G11252783Courtesy of SUBARU OF AMERICA, INC.
  31. Install the air intake boot. Ref. to INTAKE (INDUCTION) (H4DO)>Air Intake Boot>INSTALLATION .
  32. Install the battery. Ref. to STARTING/CHARGING SYSTEMS (H4DO)>Battery>INSTALLATION .
  33. Fill engine coolant. Ref. to COOLING (H4DO)>Engine Coolant>REPLACEMENT>FILLING OF ENGINE COOLANT .
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