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Home >> Subaru >> 2017 >> Forester 2.0XT Premium >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Fuel Injection System (H4DOTC) >> Intake Manifold >> Removal
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Intake Manifold: Removal

  1. Remove the collector cover.
    1. Remove the clip (A).
    2. Hold the shaded area (B) by hand and carefully pull the RH side (C) upward.
    3. Hold the shaded area (D) by hand and carefully pull the LH side (E) upward.
    Fig 1: Pulling Collector Cover (RH) And (LH) Side Upward
    G10403792Courtesy of SUBARU OF AMERICA, INC.
  2. Release the fuel pressure. Ref. to FUEL INJECTION (FUEL SYSTEMS) (H4DOTC)>Fuel>PROCEDURE>RELEASING OF FUEL PRESSURE .
  3. Disconnect the ground cable from battery.
  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. Lift up the vehicle.
  6. Remove the under cover. Ref. to EXTERIOR/INTERIOR TRIM>Front Under Cover>REMOVAL .
  7. Drain approximately 3.0 L (3.2 US qt, 2.6 Imp qt) of coolant. Ref. to COOLING(H4DOTC)>Engine Coolant>REPLACEMENT>DRAINING OF ENGINE COOLANT .
  8. Remove the intercooler. Ref. to INTAKE (INDUCTION) (H4DOTC)>Intercooler>REMOVAL .
  9. Remove the intake duct No. 2. Ref. to INTAKE (INDUCTION) (H4DOTC)>Intake Duct>REMOVAL>INTAKE DUCT NO. 2.
  10. Remove the intake duct No. 3. Ref. to INTAKE (INDUCTION) (H4DOTC)>Intake Duct>REMOVAL>INTAKE DUCT NO. 3.
  11. Disconnect the PCV hose from the PCV valve.
    Fig 2: Locating PCV Hose Clamp
    G09480039Courtesy of SUBARU OF AMERICA, INC.
  12. Disconnect the connector (A) from the throttle body, and disconnect the preheater hose (B) from the throttle body.
    Fig 3: Identifying Connector And Preheater Hose
    G09479592Courtesy of SUBARU OF AMERICA, INC.
  13. Disconnect sections (A) and (B) of the brake booster vacuum hose from the brake vacuum pump and intake manifold, and remove the brake booster vacuum hose from the clip (C).
  14. Remove the brake booster vacuum hose from the clip (D), and place the brake booster vacuum hose aside so that it does not interfere with the work.
    Fig 4: Identifying Brake Booster Vacuum Hose Clip
    G09480199Courtesy of SUBARU OF AMERICA, INC.
  15. Remove the clips securing the PCV pipe and generator cord to the intake manifold.
    Fig 5: Locating PCV Pipe And Generator Cord Clips
    G09479600Courtesy of SUBARU OF AMERICA, INC.
  16. Disconnect the vacuum control hose and vacuum hose from the vacuum pipe assembly.
    Fig 6: Locating Vacuum Control Hose Clip
    G09479601Courtesy of SUBARU OF AMERICA, INC.
  17. Disconnect two vacuum hoses from the canister pipe.
    Fig 7: Locating Vacuum Hoses From Canister Pipe
    G09479602Courtesy of SUBARU OF AMERICA, INC.
  18. Disconnect the connector from the purge control solenoid valve.
    Fig 8: Locating Purge Control Solenoid Valve Connector
    G09479603Courtesy of SUBARU OF AMERICA, INC.
  19. Disconnect the connector from the manifold absolute pressure and intake air temperature sensor.
    Fig 9: Locating Intake Air Temperature Sensor Connector
    G09479604Courtesy of SUBARU OF AMERICA, INC.
  20. Disconnect the connector (A) from the tumble generator valve LH, and remove the bolt securing the fuel pipe protector to the intake manifold.
  21. Disconnect the connector (B) from the tumble generator valve RH.
    Fig 10: Locating Fuel Pipe Protector Bolt
    G09479605Courtesy of SUBARU OF AMERICA, INC.
  22. Remove the engine harness clip from the intake manifold.
    Fig 11: Locating Engine Harness Clip
    G09479606Courtesy of SUBARU OF AMERICA, INC.
  23. Remove the bolt securing the EGR pipe to the EGR valve.
    Fig 12: Locating EGR Pipe Bolts
    G09479607Courtesy of SUBARU OF AMERICA, INC.
  24. 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. Disconnect the quick connector on the fuel delivery tube from the fuel pipe assembly, and remove the clip (A) securing the fuel delivery tube.
      NOTE: Disconnect the quick connector as shown in the figure.
      Fig 13: Disconnecting Quick Connector On Fuel Delivery Tube
      G11264860Courtesy of SUBARU OF AMERICA, INC.
      Fig 14: Identifying Fuel Delivery Tube Clip
      G10266683Courtesy of SUBARU OF AMERICA, INC.
    2. Disconnect the evaporation hose from the fuel pipe assembly.
    Fig 15: Locating Evaporation Hose Of Fuel Pipe Assembly
    G09479610Courtesy of SUBARU OF AMERICA, INC.
  25. Remove the bolts securing the fuel pipe assembly to the intake manifold.
    Fig 16: Locating Fuel Pipe Assembly Bolts
    G09479611Courtesy of SUBARU OF AMERICA, INC.
  26. Disconnect the fuel delivery pipe (A) and vacuum hose (B), and remove the fuel pipe assembly.
    CAUTION:
    • Be careful not to spill fuel.
    • Catch the fuel from the pipes using a container or cloth.
    NOTE: Disconnect the quick connector as shown in the figure.
    Fig 17: Disconnecting Quick Connector
    G11264864Courtesy of SUBARU OF AMERICA, INC.
    Fig 18: Identifying Fuel Delivery Pipe And Vacuum Hose
    G09479613Courtesy of SUBARU OF AMERICA, INC.
  27. Remove the intake manifold from the air intake adapter together with the tumble generator valve assembly.
    Fig 19: Locating Intake Manifold Bolts
    G09479614Courtesy of SUBARU OF AMERICA, INC.
  28. Remove the vacuum hose assembly from the water pipe assembly.
Fig 20: Locating Water Pipe Assembly Bolts
G09479615Courtesy of SUBARU OF AMERICA, INC.
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