Intake Manifold: Removal

Set the vehicle on a lift.
Remove the collector cover.
Collect the refrigerant from the A/C system. Refer to PROCEDURE , Refrigerant Recovery 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.
Drain approximately 3.0 l (3.2 US qt, 2.6 lmp qt) of coolant. Refer to DRAINING OF ENGINE COOLANT , REPLACEMENT, Engine Coolant.
Remove the air intake duct (rear). Refer to REMOVAL , Air Intake Duct.
Remove the air intake boot.

Fig 2: Locating Air Intake Boot Clamp
Courtesy of SUBARU OF AMERICA, INC.
Remove the intercooler. Refer to REMOVAL , Intercooler.
Remove the generator. Refer to REMOVAL , Generator.
Remove the coolant filler tank. Refer to REMOVAL , Coolant Filler Tank.
Disconnect the A/C pressure hoses from A/C compressor. Refer to REMOVAL , Hose and Pipe.
Disconnect the vacuum hose (A) and the connector (B) from the PCV hose assembly.

Fig 3: Identifying Vacuum Hose And Connector
Courtesy of SUBARU OF AMERICA, INC.
Remove the connector from the PCV hose assembly.

Fig 4: Identifying PCV Hose Assembly Connector
Courtesy of SUBARU OF AMERICA, INC.
Remove the bolts which secure the air by-pass pipe and PCV pipe to the intake manifold, and loosen the clamp which connects the throttle body and duct.

Fig 5: Locating Air By-Pass Pipe Bolts
Courtesy of SUBARU OF AMERICA, INC.
Remove the duct from the throttle body.
Disconnect the engine coolant hoses from the throttle body.

Fig 6: Identifying Engine Coolant Hoses
Courtesy of SUBARU OF AMERICA, INC.
Disconnect the brake booster vacuum hose.

Fig 7: Locating Brake Booster Vacuum Hose And Clamp
Courtesy of SUBARU OF AMERICA, INC.
Disconnect the PCV hose from the rocker cover.
NOTE: Fit the cut out in the ST with the protrusion on the clamp as shown in the figure, unlock the clamp, and disconnect the PCV hose fastened by the clamp.

ST 18353AA000 CLAMP PLIERS

Fig 8: Identifying PCV Hose Clamp
Courtesy of SUBARU OF AMERICA, INC.
Disconnect the air control hose (A) from the wastegate actuator, and loosen the clamp that holds the turbocharger on the intake duct.

Fig 9: Identifying Air Control Hose With Bolt
Courtesy of SUBARU OF AMERICA, INC.
Disconnect the engine harness connectors from the bulk head harness connector.

Fig 10: Identifying Engine Harness Connectors
Courtesy of SUBARU OF AMERICA, INC.
Remove the engine harness connector from the engine harness bracket.

Fig 11: Locating 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 12: Identifying Engine Coolant Temperature Sensor, Oil Pressure Switch And Crankshaft Position Sensor
Courtesy of SUBARU OF AMERICA, INC.
Disconnect the connector from power steering pump switch.

Fig 13: Identifying Power Steering Pump Switch Connector
Courtesy of SUBARU OF AMERICA, INC.
Disconnect the knock sensor connector.

Fig 14: Identifying Knock Sensor Connector
Courtesy of SUBARU OF AMERICA, INC.
Disconnect the connector from the secondary air combination valve.

Fig 15: Identifying Secondary Air Combination Valve Connector
Courtesy of SUBARU OF AMERICA, INC.
Disconnect the connector from the camshaft position sensor.

Fig 16: Identifying Camshaft Position Sensor Connector
Courtesy of SUBARU OF AMERICA, INC.
Disconnect the connector from the oil flow control solenoid valve.

Fig 17: Identifying Oil Flow Control Solenoid Valve Connector
Courtesy of SUBARU OF AMERICA, INC.
Disconnect the air duct from the secondary air pump, and remove the bolts that install the air duct on the rocker cover LH.

Fig 18: Locating Air Duct With Bolt
Courtesy of SUBARU OF AMERICA, INC.
Disconnect the connector from ignition coil.

Fig 19: Locating Ignition Coil Connector
Courtesy of SUBARU OF AMERICA, INC.
Disconnect the connector from the front oxygen (A/F) sensor, and remove the clip (A) and stay (B) holding the engine harness to rocker cover RH.

Fig 20: Locating Front Oxygen (A/F) Sensor Connector
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 21: Identifying Fuel Delivery And Return Hose
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 22: Identifying Connector Remover (18371AA000)
  Courtesy of SUBARU OF AMERICA, INC.
2. Insert the front side of ST into the quick connector.
  
  Fig 23: 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 24: Inserting Back Side Of ST Into Quick Connector
  Courtesy of SUBARU OF AMERICA, INC.
Remove the clip and disconnect the evaporation hose from the fuel pipe.

Fig 25: Locating Evaporation Hose Clip
Courtesy of SUBARU OF AMERICA, INC.
Remove the intake manifold from cylinder head.

Fig 26: Locating Tumble Generator Valve Assembly Bolts
Courtesy of SUBARU OF AMERICA, INC.