Intake Manifold: Removal

Remove the collector cover.
Collect the refrigerant from A/C system. Refer to PROCEDURE .
Release the fuel pressure. Refer to , RELEASING OF FUEL PRESSURE , PROCEDURE, Fuel.
Disconnect the ground cable from battery.

Fig 1: Disconnecting Ground Cable From Battery
Courtesy of SUBARU OF AMERICA, INC.
Open the fuel filler lid and remove the fuel filler cap.
Lift up the vehicle.
Remove the under cover. Refer to FRONT UNDER COVER .
Drain approximately 2.0 l (2.1 US qt, 1.8 Imp qt) of coolant. Refer to ENGINE COOLANT .
Disconnect the connectors from exhaust oil flow control solenoid valve (A) and exhaust camshaft position sensor (B).

Fig 2: Identifying Exhaust Oil Flow Control Solenoid Valve And Exhaust Camshaft Position Sensor
Courtesy of SUBARU OF AMERICA, INC.
Disconnect the connectors from wastegate control solenoid valve, and remove the clip (A) which secure the engine harness.

Fig 3: Identifying Engine Harness Clip
Courtesy of SUBARU OF AMERICA, INC.
Lower the vehicle.
Remove the air intake duct. Refer to AIR INTAKE DUCT .
Remove the intercooler. Refer to INTERCOOLER .
Disconnect the A/C pressure hoses from A/C compressor. Refer to REMOVAL .
Disconnect the brake booster vacuum hose.

Fig 4: Locating Brake Booster Vacuum Hose
Courtesy of SUBARU OF AMERICA, INC.
Remove the brake booster vacuum hose from the clip (A).
Remove the bolts which secure the engine harness and PCV pipe to the intake manifold, and remove the intake duct from the throttle body.

Fig 5: Locating Engine Harness And PCV Pipe Mounting Bolts
Courtesy of SUBARU OF AMERICA, INC.
Disconnect the connector from the throttle position sensor, and disconnect the preheater hose from the throttle body.

Fig 6: Locating Preheater Hose And Throttle Position Sensor Connector
Courtesy of SUBARU OF AMERICA, INC.
Disconnect the vacuum hose from the PCV valve.

Fig 7: Locating Vacuum Hose
Courtesy of SUBARU OF AMERICA, INC.
Disconnect the vacuum hose from blow-by pipe, and remove the bolt securing the blow-by pipe to the intake manifold protector RH.

Fig 8: Locating Blow-By Pipe
Courtesy of SUBARU OF AMERICA, INC.
Disconnect the vacuum control hose (A) from PCV pipe, and remove the PCV pipe from the intake manifold protector RH.

Fig 9: Locating PCV Pipe Mounting Nut
Courtesy of SUBARU OF AMERICA, INC.
Disconnect the bulkhead harness connector from the engine harness connector (brown).

Fig 10: Locating Bulkhead Harness Connector
Courtesy of SUBARU OF AMERICA, INC.
Remove the bolt securing the bulkhead harness connector bracket, and disconnect the bulkhead harness connector from the engine harness connector (black).

Fig 11: Locating Bulkhead Harness Connector Bracket And Mounting Bolt
Courtesy of SUBARU OF AMERICA, INC.
Remove the engine harness connector from the engine rear hanger.

Fig 12: Locating Engine Rear Hanger And Engine Harness Connector
Courtesy of SUBARU OF AMERICA, INC.
Disconnect the connectors from the engine coolant temperature sensor (A), oil pressure switch (B) and crankshaft position sensor (C).

Fig 13: Identifying Engine Coolant Temperature Sensor, Oil Pressure Switch And Crankshaft Position Sensor
Courtesy of SUBARU OF AMERICA, INC.
Disconnect the connectors from front oxygen (A/F) sensor (A) and rear oxygen sensor (B).

Fig 14: Identifying Front Oxygen (A/F) Sensor And Rear Oxygen Sensor
Courtesy of SUBARU OF AMERICA, INC.
Remove the clip which secure the generator cord to the intake manifold protector LH.

Fig 15: Locating Generator Cord Clip
Courtesy of SUBARU OF AMERICA, INC.
Disconnect the connector from the knock sensor.

Fig 16: Locating Knock Sensor
Courtesy of SUBARU OF AMERICA, INC.
Disconnect the connector from the intake camshaft position sensor.

Fig 17: Locating Intake Camshaft Position Sensor
Courtesy of SUBARU OF AMERICA, INC.
Disconnect the connector from the intake oil flow control solenoid valve.

Fig 18: Locating Intake Oil Flow Control Solenoid Valve Connector
Courtesy of SUBARU OF AMERICA, INC.
Disconnect the connector (A) from oil level switch.
Disconnect the connector (B) from ignition coil, and remove the clips (C) and bolt (D) securing the engine harness or oil level switch harness to the rocker cover.

Fig 19: Identifying Oil Level Switch Connector, Ignition Coil Connector And Clips
Courtesy of SUBARU OF AMERICA, INC.
Attach ST to the fuel delivery pipe and push ST in the direction of arrow mark to disconnect the fuel delivery hose.
ST 42099AE000 QUICK CONNECTOR RELEASE
CAUTION:
- Be careful not to spill fuel.
- Catch the fuel from hoses using a container or cloth.
Fig 20: Disconnections Fuel Drain Hose Using Special Tool
Courtesy of SUBARU OF AMERICA, INC.
Disconnect the fuel return hose using the ST.
ST 18371AA000 CONNECTOR REMOVER
CAUTION:
- Be careful not to spill fuel.
- Catch the fuel from hoses using a container or cloth.
1. Attach ST to the fuel return pipe as shown in the figure.
  
  Fig 21: Locating Evaporation Hose And Clip
  Courtesy of SUBARU OF AMERICA, INC.
2. Insert the front side of ST into the quick connector.
  
  Fig 22: Inserting Front Side Of ST Into Quick Connector
  Courtesy of SUBARU OF AMERICA, INC.
3. Insert the back side of ST into the quick connector and push ST in the direction of arrow mark to disconnect the fuel return hose.
  
  Fig 23: Disconnecting Fuel Return Hose
  Courtesy of SUBARU OF AMERICA, INC.
Remove the clip and disconnect the evaporation hose from the fuel pipe.

Fig 24: Locating Evaporation Hose Clamp
Courtesy of SUBARU OF AMERICA, INC.
Remove the intake manifold from cylinder head.

Fig 25: Locating Cylinder Head, Intake Manifold And Mounting Bolts
Courtesy of SUBARU OF AMERICA, INC.