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Home >> Subaru >> 2006 >> Impreza WRX TR >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Fuel Injection (Fuel Systems) (H4DOTC) >> Intake Manifold >> Installation
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Intake Manifold: Installation

  1. Install the intake manifold onto cylinder heads.
    NOTE: Always use new gaskets.

    Tightening torque: 

    25 N.m (2.5 kgf-m, 18.1 ft-lb) 

    Fig 1: Locating Bolts Securing Intake Manifold To Cylinder Heads
    G04998276
  2. Connect the fuel delivery hose, return hose and evaporation hose.
    Fig 2: Identifying Fuel Delivery, Return And Evaporation Hose
    G04998278
  3. Connect the connector to the oil pressure switch (B), crankshaft position sensor (C) and engine coolant temperature sensor (A).
    Fig 3: Identifying Engine Coolant Temperature Sensor, Oil Pressure Switch And Crankshaft Position Sensor
    G04998268
  4. Connect the connector to the knock sensor.
    Fig 4: Identifying Knock Sensor Connector
    G04998280
  5. Connect the connector to the camshaft position sensor.
    Fig 5: Locating Camshaft Position Sensor Connector
    G04998270
  6. Connect the connector to the ignition coil and ignitor assembly.
    • RH side
      Fig 6: Locating Connector On Ignition Coil And Ignitor Assembly (RH)
      G04998271
    • LH side
      Fig 7: Locating Connector On Ignition Coil And Ignitor Assembly (LH)
      G04998272
  7. Connect the engine harness with clip (A) to the rocker cover.
    • RH side
      Fig 8: Identifying Engine Harness Fixing Clip (RH)
      G04998273
    • LH side
      Fig 9: Identifying Engine Harness Fixing Clip (LH)
      G04998274
  8. Connect the engine harness connector to front harness connector.
    Fig 10: Identifying Engine Harness Connector
    G04998267
  9. Connect the engine harness connector to the bulkhead harness connectors.
    Fig 11: Identifying Engine Harness Connectors
    G04998266
  10. Connect the brake booster vacuum hose.
    Fig 12: Identifying Brake Booster Vacuum Hose
    G04998264
  11. Connect the engine coolant hoses to the throttle body.
    Fig 13: Identifying Engine Coolant Hose
    G04998254
  12. Connect the emission hose (A) and connector (B) to the PCV hose assembly.
    Fig 14: Identifying Emission Hose And Connector
    G04998262
  13. Connect the pressure hose to the intake duct.
    Fig 15: Identifying Pressure Hose
    G04998265
  14. Install the power steering pump.
    1. Install the power steering tank on the bracket.
      Fig 16: Locating Power Steering Tank Bracket
      G04997330
    2. Connect the connector to the power steering pump switch.
      Fig 17: Locating Power Steering Switch Connector
      G04998257
    3. Install the power steering pump, and tighten the bolts.

      Tightening torque: 

      22 N.m (2.2 kgf-m, 15.9 ft-lb) 

      Fig 18: Identifying Power Steering Pump Bracket Bolts
      G04998259
    4. Install the power steering pipe brackets on the intake manifold RH.
      Fig 19: Locating Bolts Securing Power Steering Pipe Brackets To Intake Manifold
      G04998258
    5. Install the front side V-belt. < Ref. to REMOVAL , V-belt. >
  15. Install the coolant filler tank. < Ref. to INSTALLATION , Coolant Filler Tank. >
  16. Install the intercooler. < Ref. to INSTALLATION , Intercooler. >
  17. Install the air cleaner element.
  18. Install the air cleaner upper cover and air intake duct as a unit. < Ref. to INSTALLATION , Air Cleaner Case. >
  19. Connect the connector to the fuel pump relay.
    Fig 20: Locating Fuel Pump Relay Connector
    G04997433
  20. Connect the battery ground cable to battery.
  21. Lift up the vehicle.
  22. Install the under cover.
  23. Fill the engine coolant. < Ref. to FILLING OF ENGINE COOLANT , REPLACEMENT, Engine Coolant. >