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Home >> Subaru >> 2013 >> Outback Base, Automatic CVT Trans >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Fuel Injection System (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 ENGINE HARNESS  for how to connect the engine harness connectors..

    Tightening torque: 

    6.4 N.m (0.7 kgf-m, 4.7 ft-lb) 

    Fig 1: Locating Engine Harness Mounting Bolts
    G08579629Courtesy 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 Bolts
    G08579628Courtesy of SUBARU OF AMERICA, INC.
  3. Connect the fuel delivery hose (A) and evaporation hose (B).
    Fig 3: Identifying Fuel Delivery And Evaporation Hose
    G08315351Courtesy of SUBARU OF AMERICA, INC.
  4. Connect the fuel delivery pipe to the fuel pipe LH.
    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.
    NOTE: Connect the quick connector as shown in the figure.
    Fig 4: Connecting Quick Connector
    G08579633Courtesy of SUBARU OF AMERICA, INC.
    Fig 5: Locating Quick Connector
    G08315345Courtesy 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 Bolts (LH)
    G08315343Courtesy of SUBARU OF AMERICA, INC.
  6. Connect the fuel delivery pipe to the fuel pipe RH.
    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.
    NOTE: Connect the quick connector as shown in the figure.
    Fig 7: Connecting Quick Connector
    G08579636Courtesy of SUBARU OF AMERICA, INC.
    Fig 8: Locating Quick Connector
    G08315342Courtesy 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 Bolts (RH)
    G08579621Courtesy of SUBARU OF AMERICA, INC.
  8. Install the air intake case (rear).
    Fig 10: Identifying Air Cleaner Case Clamp
    G08579620Courtesy 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: Identifying Suction Hose, Clip, Mass Air Flow And Intake Air Temperature Sensor Connector
    G08579619Courtesy of SUBARU OF AMERICA, INC.
  11. Connect the brake booster vacuum hose to the intake manifold.
    Fig 12: Locating Brake Booster Vacuum Hose Clip
    G08579618Courtesy 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: Identifying Intake Manifold Vacuum Hose, Throttle Position And Manifold Absolute Pressure Sensor Connectors
    G08579617Courtesy of SUBARU OF AMERICA, INC.
  15. Connect the connector (A) to the purge control solenoid valve.
  16. Tighten the nut (C) and bolt (B) which hold EGR pipe to the water pipe assembly.
    NOTE:
    • Use a new gasket.
    • Always tighten the EGR pipe at (C) first, and then (B).

    Tightening torque: 

    6.4 N.m (0.7 kgf-m, 4.7 ft-lb) 

    Fig 14: Identifying Purge Control Solenoid Valve Connector, Bolt And Nut
    G08315335Courtesy of SUBARU OF AMERICA, INC.
  17. Install the preheater hose to the throttle body.
    Fig 15: Locating Preheater Hose Clips
    G08579615Courtesy of SUBARU OF AMERICA, INC.
  18. Install the air intake boot. Refer to INSTALLATION .
  19. Lift up the vehicle.
  20. Install the under cover. Refer to INSTALLATION .
  21. Lower the vehicle.
  22. Connect the battery ground terminal.
    Fig 16: Connecting Battery Ground Terminal
    G08579605Courtesy of SUBARU OF AMERICA, INC.
  23. Fill engine coolant. Refer to FILLING OF ENGINE COOLANT .
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