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Home >> Subaru >> 2007 >> Impreza WRX TR >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Fuel Injection System (H4DOTC) >> Intake Manifold >> Installation

Intake Manifold: Installation

  1. Install the intake manifold onto cylinder heads.
    NOTE: Use a new gasket.

    Tightening torque: 

    25 N.m (2.5 kgf-m, 18.1 ft-lb) 

    Fig 1: Locating Intake Manifold Bolts
    G05333475Courtesy of SUBARU OF AMERICA, INC.
  2. Connect the fuel delivery hose, return hose, and evaporation hose.
    Fig 2: Identifying Fuel Delivery Hose, Return Hose And Evaporation Hose
    G04998278Courtesy of SUBARU OF AMERICA, INC.
  3. Connect the connector to the engine coolant temperature sensor (A), oil pressure switch (B) and crankshaft position sensor (C).
    Fig 3: Identifying Engine Coolant Temperature Sensor, Oil Pressure Switch And Crankshaft Position Sensor
    G04998268Courtesy of SUBARU OF AMERICA, INC.
  4. Connect the connector to the knock sensor.
    Fig 4: Locating Knock Sensor Connector
    G04998269Courtesy of SUBARU OF AMERICA, INC.
  5. Connect the connectors to camshaft position sensor.
    Fig 5: Locating Camshaft Position Sensor Connector
    G04998270Courtesy of SUBARU OF AMERICA, INC.
  6. Connect the connector to the oil flow control solenoid valve.
    Fig 6: Identifying Oil Flow Control Solenoid Valve
    G05333469Courtesy of SUBARU OF AMERICA, INC.
  7. Connect the connector to the secondary air combination valve.
  8. Connect the connector to the ignition coil.
    • RH side
      Fig 7: Locating Connector For Ignition Coil And Ignitor Assembly
      G04998271Courtesy of SUBARU OF AMERICA, INC.
    • LH side
    • Fig 8: Locating Connector For Ignition Coil And Ignitor Assembly
      G04998272Courtesy of SUBARU OF AMERICA, INC.
  9. Connect the engine harness with clip (A) to the rocker cover.
    • RH side
      Fig 9: Identifying Engine Harness Clip
      G04998273Courtesy of SUBARU OF AMERICA, INC.
    • LH side
    • Fig 10: Identifying Engine Harness Clip
      G04998274Courtesy of SUBARU OF AMERICA, INC.
  10. Connect the engine harness connectors to the bulkhead harness connectors.
    Fig 11: Connecting Engine Harness Connectors To Bulkhead Harness Connectors
    G05333465Courtesy of SUBARU OF AMERICA, INC.
  11. Connect the brake booster vacuum hose.
    Fig 12: Identifying Brake Booster Hose
    G04998264Courtesy of SUBARU OF AMERICA, INC.
  12. Connect the engine coolant hoses to throttle body.
    Fig 13: Identifying Engine Coolant Hose
    G04998254Courtesy of SUBARU OF AMERICA, INC.
  13. Connect the emission hose (A) and the connector (B) to the PCV hose assembly.
    Fig 14: Identifying Emission Hose And Connector
    G04998262Courtesy of SUBARU OF AMERICA, INC.
  14. Connect the pressure hose to the intake duct.
    Fig 15: Identifying Pressure Hose
    G04998265Courtesy of SUBARU OF AMERICA, INC.
  15. Install the power steering pump.
    1. Install the reservoir tank to the bracket.
      Fig 16: Identifying Power Steering Tank
      G04997330Courtesy of SUBARU OF AMERICA, INC.
    2. Connect the power steering pump switch to the connector.
      Fig 17: Locating Connector For Power Steering Pump Switch
      G04998257Courtesy of SUBARU OF AMERICA, INC.
    3. Install the power steering pump. <Ref. to PS-60, INSTALLATION, Oil Pump .>
      Fig 18: Identifying Power Steering Pump Bracket Bolts
      G04998259Courtesy of SUBARU OF AMERICA, INC.
    4. Install the power steering pipe bracket onto the right side intake manifold.
      Fig 19: Identifying Intake Manifold Pipe
      G04998258Courtesy of SUBARU OF AMERICA, INC.
    5. Install the front side V-belt. <Ref. to INSTALLATION , V-belt .>
  16. Install the coolant filler tank. <Ref. to INSTALLATION , Coolant Filler Tank .>
  17. Install the intercooler. <Ref. to INSTALLATION , Intercooler .>
  18. Install the air cleaner element.
  19. Install the air cleaner upper cover and air intake duct as a unit. <Ref. to INSTALLATION , Air Cleaner Case .>
  20. Connect the connector to fuel pump relay.
    Fig 20: Identifying Fuel Pump Relay Connector
    G04992306Courtesy of SUBARU OF AMERICA, INC.
  21. Install the passenger's side front side sill cover.
  22. Install the glove box. <Ref. to INSTALLATION , Glove Box .>
  23. Connect the ground cable to the battery.
    Fig 21: Disconnecting Battery Ground Cable
    G04988132Courtesy of SUBARU OF AMERICA, INC.
  24. Lift up the vehicle.
  25. Install the under cover.
  26. Fill engine coolant. <Ref. to FILLING OF ENGINE COOLANT , REPLACEMENT, Engine Coolant .>