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Home >> Subaru >> 2004 >> Impreza RS, Automatic >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Fuel Injection (Fuel Systems) (H4SO) >> Intake Manifold >> Removal

Intake Manifold: Removal

  1. Release the fuel pressure. < Ref. to RELEASING OF FUEL PRESSURE , Operation, Fuel.>
  2. Open the fuel flap lid, and remove the fuel filler cap.
  3. Disconnect the ground cable from battery.
    Fig 1: Disconnecting Ground Cable From Battery
    G00800463Courtesy of SUBARU OF AMERICA, INC.
  4. Remove the air intake duct and air cleaner case.

    < Ref. to REMOVAL , Air Intake Duct. >

    < Ref. to REMOVAL , Air Cleaner Case. >

  5. Disconnect the accelerator cable (A).
  6. Disconnect the cruise control cable (B). (vehicles with cruise control)
    Fig 2: Identifying Accelerator Cable & Cruise Control Cable
    G00800464Courtesy of SUBARU OF AMERICA, INC.
  7. Remove the power steering pump and reservoir tank from bracket.
    1. Remove the resonator chamber. < Ref. to REMOVAL , Resonator Chamber. >
    2. Remove the front side V-belt. < Ref. to REMOVAL , V-belt. >
    3. Remove the bolts which hold power steering pipes onto the intake manifold protector.
      NOTE: Do not disconnect the power steering hose.
      Fig 3: Removing Bolts From Power Steering Pipes At Intake Manifold Protector
      G00800465Courtesy of SUBARU OF AMERICA, INC.
    4. Remove the bolts which install power steering pump bracket.
      Fig 4: Removing Bolts From Power Steering Pump Bracket
      G00800466Courtesy of SUBARU OF AMERICA, INC.
    5. Disconnect the connector from the power steering pump switch.
      Fig 5: Disconnecting Connector From Power Steering Pump Switch
      G00800467Courtesy of SUBARU OF AMERICA, INC.
    6. Remove the reservoir tank from the bracket by pulling it upwards.
      Fig 6: Removing Reservoir Tank From Bracket
      G00800468Courtesy of SUBARU OF AMERICA, INC.
    7. Place the power steering pump on the right side wheel apron.
      Fig 7: Placing Power Steering Pump On Right Side Wheel Apron
      G00800469Courtesy of SUBARU OF AMERICA, INC.
  8. Disconnect the spark plug cords from the spark plugs.
  9. Disconnect the PCV hose from the intake manifold.
    Fig 8: Disconnecting PCV Hose From Intake Manifold
    G00800470Courtesy of SUBARU OF AMERICA, INC.
  10. Disconnect the engine coolant hoses (A) from the throttle body.
    Fig 9: Disconnecting Engine Coolant Hoses (A) From The Throttle Body
    G00800471Courtesy of SUBARU OF AMERICA, INC.
  11. Disconnect the brake booster hose.
    Fig 10: Disconnecting The Brake Booster Hose
    G00800472Courtesy of SUBARU OF AMERICA, INC.
  12. Remove the air cleaner case stay RH and engine harness bracket, and disconnect the engine harness connectors from the bulkhead harness connectors.
    Fig 11: Removing Air Cleaner Case Stay (RH Side) & Engine Harness Bracket
    G00800473Courtesy of SUBARU OF AMERICA, INC.
  13. Disconnect the connector from engine coolant temperature sensor.
    Fig 12: Disconnecting Connector From Engine Coolant Temperature Sensor
    G00800474Courtesy of SUBARU OF AMERICA, INC.
  14. Disconnect the knock sensor connector.
    Fig 13: Disconnecting Knock Sensor Connector
    G00800475Courtesy of SUBARU OF AMERICA, INC.
  15. Disconnect the connector from crankshaft position sensor.
    Fig 14: Disconnecting Connector From Crankshaft Position Sensor
    G00800476Courtesy of SUBARU OF AMERICA, INC.
  16. Disconnect the connector from oil pressure switch.
    Fig 15: Disconnecting Connector From Oil Pressure Switch
    G00800477Courtesy of SUBARU OF AMERICA, INC.
  17. Disconnect the connector from the camshaft position sensor.
    Fig 16: Disconnecting Connector From The Camshaft Position Sensor
    G00800478Courtesy of SUBARU OF AMERICA, INC.
  18. Disconnect the engine ground terminal from ground stay.
    Fig 17: Disconnecting Engine Ground Terminal From Ground Stay
    G00800479Courtesy of SUBARU OF AMERICA, INC.
  19. Disconnect the fuel hoses from the fuel pipes.
    WARNING:
    • Do not spill fuel.
    • Catch fuel from hoses in a container or cloth.
      Fig 18: Disconnecting Fuel Hoses From Fuel Pipes
      G00800480Courtesy of SUBARU OF AMERICA, INC.
  20. Remove the bolts which hold intake manifold onto the cylinder heads.
    Fig 19: Removing Bolts From Intake Manifold At Cylinder Heads
    G00800481Courtesy of SUBARU OF AMERICA, INC.
  21. Remove the intake manifold.