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Home >> Subaru >> 2017 >> Outback 3.6R Limited >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Fuel Injection System (H6DO) >> Intake Manifold >> Removal
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Intake Manifold: Removal

  1. Remove the collector cover.
    1. Carefully pull up the rear of collector cover at two positions (A).
    2. Carefully pull up the front of collector cover at two positions (B) while moving it forward.
    Fig 1: Removing Collector Cover
    G11585612Courtesy of SUBARU OF AMERICA, INC.
  2. Release the fuel pressure. <Ref. to RELEASING OF FUEL PRESSURE , PROCEDURE, Fuel.>
  3. Disconnect the ground terminal from battery sensor. <Ref. to BATTERY , NOTE, Repair Contents.>
  4. Open the fuel filler lid and remove the fuel filler cap.
    NOTE: This operation is required to release the inner pressure of the fuel tank.
  5. Disconnect the brake booster vacuum hose.
    Fig 2: Locating Brake Booster Vacuum Hose Clamp
    G10263536Courtesy of SUBARU OF AMERICA, INC.
  6. Loosen the clamp (A) securing the air intake boot.
  7. Remove the bolt (B) securing the air intake boot to the collector cover bracket.
    Fig 3: Air Intake Boot Clamp And Collector Cover Bracket Bolt
    G11585613Courtesy of SUBARU OF AMERICA, INC.
  8. Remove the air intake boot from the throttle body and the air cleaner case (rear), and move it to the left side wheel apron.
    CAUTION: Be careful not to allow the air intake boot to contact the air conditioner pipe.
    Fig 4: Removing Air Intake Boot From Throttle Body And Rear Air Cleaner Case
    G11585614Courtesy of SUBARU OF AMERICA, INC.
  9. Remove the fuel injector. <Ref. to REMOVAL , Fuel Injector.>
  10. Disconnect the engine harness connector.
    Fig 5: Locating Engine Harness Connector
    G10263539Courtesy of SUBARU OF AMERICA, INC.
  11. Disconnect the connector (A) from the throttle body, and remove the throttle body from the intake manifold.
    NOTE: Do not disconnect the preheater hose.
    Fig 6: Locating Throttle Body Bolts With Connector
    G10263540Courtesy of SUBARU OF AMERICA, INC.
  12. Disconnect the fuel delivery tube and evaporation hose.
    CAUTION:
    • Be careful not to spill fuel.
    • Catch the fuel from the tubes using a container or cloth.
    1. Remove the clip (A) securing the fuel delivery tube.
    2. Attach ST to the fuel pipe assembly and push ST in the direction of arrow mark to disconnect the quick connector of the fuel delivery tube (B).

      ST 42099AE000 QUICK CONNECTOR RELEASE

    3. Disconnect the evaporation hose (C) from the fuel pipe assembly.
      Fig 7: Attaching Quick Connector Release (42099AE000) To Fuel Pipe Assembly
      G10263541Courtesy of SUBARU OF AMERICA, INC.
  13. Disconnect the connectors from the oil temperature sensor, engine coolant temperature sensor and intake oil flow control solenoid valve LH.
    Fig 8: Locating Oil Temperature Sensor, Engine Coolant Temperature Sensor And Intake Oil Flow Control Solenoid Valve LH Connectors
    G10263542Courtesy of SUBARU OF AMERICA, INC.
  14. Remove the clip securing the engine harness to the fuel injector pipe LH.
    Fig 9: Locating Engine Harness Clip Of Fuel Injector Pipe LH
    G10263543Courtesy of SUBARU OF AMERICA, INC.
  15. Disconnect the connector from the intake oil flow control solenoid valve RH.
    Fig 10: Locating Intake Oil Flow Control Solenoid Valve RH Connector
    G10263544Courtesy of SUBARU OF AMERICA, INC.
  16. Remove the clip securing the engine harness to the fuel injector pipe RH.
    Fig 11: Locating Engine Harness Clip Of Fuel Injector Pipe RH
    G10263545Courtesy of SUBARU OF AMERICA, INC.
  17. Remove the bolts securing the EGR pipe B to the EGR control valve.
    Fig 12: Locating EGR Pipe B Bolts
    G10263546Courtesy of SUBARU OF AMERICA, INC.
  18. Remove the intake manifold from cylinder head.
    • RH side
      Fig 13: Locating Intake Manifold Bolts - RH Side
      G10263547Courtesy of SUBARU OF AMERICA, INC.
    • LH side
    Fig 14: Locating Intake Manifold Bolts - LH Side
    G10263548Courtesy of SUBARU OF AMERICA, INC.