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Home >> Subaru >> 2012 >> Forester X, Automatic Trans >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Fuel Injection System - Fuel Injection (H4DO) >> Intake Manifold >> Installation
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Intake Manifold: Installation

  1. Connect the connectors to the engine, and install the engine harness.
    NOTE: Refer to "COMPONENT" of "General Description" for how to connect the engine harness connectors. < Ref. to ENGINE HARNESS , COMPONENT. >

    Tightening torque: 

    6.4 N.m (0.7 kgf-m, 4.7 ft-lb) 

    Fig 1: Locating Engine Mounting Bolts
    G07664679Courtesy of SUBARU OF AMERICA, INC.
  2. Install the intake manifold to the tumble generator valve assembly.
    NOTE: Use a new gasket.

    Tightening torque: 

    8.3 N.m (0.8 kgf-m, 6.1 ft-lb) 

    Fig 2: Locating Tumble Generator Valve Assembly Mounting Bolts
    G07664680Courtesy of SUBARU OF AMERICA, INC.
  3. Connect the fuel delivery hose (A) and evaporation hose (B).
    Fig 3: Connecting Fuel Delivery Hose And Evaporation Hose
    G07664681Courtesy of SUBARU OF AMERICA, INC.
  4. Connect the fuel delivery pipe to the fuel pipe LH.
    • Connect the quick connector as shown in the illustration.
      CAUTION:
      • Check that there is no damage or dust on the quick connector. If necessary, clean the seal surface of the pipe.
      • When connecting the quick connector, make sure to insert the pipe all the way in before locking the slider.
      • When it is difficult to lock the slider, check that the pipe is fully inserted.
      • Make sure that the quick connector is securely connected.
        Fig 4: Connecting Fuel Delivery Pipe To Fuel Pipe
        G07664682Courtesy of SUBARU OF AMERICA, INC.
        Fig 5: Locating Fuel Delivery Pipe
        G07664683Courtesy of SUBARU OF AMERICA, INC.
  5. Install the intake manifold protector LH.

    Tightening torque: 

    6.4 N.m (0.7 kgf-m, 4.7 ft-lb) 

    Fig 6: Locating Intake Manifold Protector Mounting Bolts
    G07664684Courtesy of SUBARU OF AMERICA, INC.
  6. Connect the fuel delivery pipe to the fuel pipe RH.
    • Connect the quick connector as shown in the illustration.
      CAUTION:
      • Check that there is no damage or dust on the quick connector. If necessary, clean the seal surface of the pipe.
      • When connecting the quick connector, make sure to insert the pipe all the way in before locking the slider.
      • When it is difficult to lock the slider, check that the pipe is fully inserted.
      • Make sure that the quick connector is securely connected.
        Fig 7: Connecting Quick Connector
        G07664685Courtesy of SUBARU OF AMERICA, INC.
        Fig 8: Locating Quick Connector
        G07664686Courtesy of SUBARU OF AMERICA, INC.
  7. Install the intake manifold protector RH.

    Tightening torque: 

    6.4 N.m (0.7 kgf-m, 4.7 ft-lb) 

    Fig 9: Locating Intake Manifold Protector Mounting Bolt
    G07664687Courtesy of SUBARU OF AMERICA, INC.
  8. Install the air intake case (rear).
    Fig 10: Locating Air Cleaner Case Clamps
    G07664688Courtesy of SUBARU OF AMERICA, INC.
  9. Install the clip (B) which secures the air flow and intake air temperature sensor harness, and connect the connector (A) to the air flow and intake air temperature sensor.
  10. Install the suction hose (C) to the air cleaner case (rear).
    Fig 11: Mass Air Flow And Intake Air Temperature Sensor Connector And Suction Hose
    G07664689Courtesy of SUBARU OF AMERICA, INC.
  11. Connect the brake booster vacuum hose to the intake manifold.
    Fig 12: Locating Brake Booster Vacuum Hose
    G07664690Courtesy of SUBARU OF AMERICA, INC.
  12. Connect the vacuum hose (A) to the intake manifold.
  13. Connect the connector (B) to the manifold absolute pressure sensor.
  14. Connect the connector (C) to the throttle position sensor.
    Fig 13: Vacuum Hose, Manifold Absolute Pressure Sensor Connector And Throttle Position Sensor Connector
    G07664691Courtesy of SUBARU OF AMERICA, INC.
  15. Connect the connector (A) to the purge control solenoid valve.
  16. Hold the PCV hose assembly with clip (B).
  17. Tighten the nut (C) and bolt (D) which hold EGR pipe to the water pipe assembly.
    NOTE:
    • Use a new gasket.
    • Always tighten the EGR pipe at (C) first, and then (D).

    Tightening torque: 

    6.4 N.m (0.7 kgf-m, 4.7 ft-lb) 

    Fig 14: Purge Control Solenoid Valve Connector, Clip, Nut And Bolt
    G07664692Courtesy of SUBARU OF AMERICA, INC.
  18. Install the preheater hose.
    Fig 15: Locating Preheater Hose
    G07664693Courtesy of SUBARU OF AMERICA, INC.
  19. Install the air intake boot. < Ref. to INSTALLATION , Air Intake Boot. >
  20. Lift up the vehicle.
  21. Install the under cover RH. < Ref. to INSTALLATION , Front Under Cover. >
  22. Lower the vehicle.
  23. Connect the battery ground terminal.
    Fig 16: Connecting Ground Cable From Battery
    G07664694Courtesy of SUBARU OF AMERICA, INC.
  24. Fill engine coolant. < Ref. to FILLING OF ENGINE COOLANT , REPLACEMENT. >
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