Intake (induction) (h4so Engine) Subaru Impreza WRX GD/GG рестайлинг 2

Identifying Intake (Induction) Components. Scheme 31

CAUTION

1. Wear work clothing, including a cap, protective goggles, and protective shoes during operation.
2. Remove contamination including dirt and corrosion before removal, installation or disassembly.
3. Keep the disassembled parts in order and protect them from dust and dirt.
4. Before removal, installation or disassembly, be sure to clarify the failure. Avoid unnecessary removal, installation, disassembly, and replacement.
5. Be careful not to burn yourself, because each part on the vehicle is hot after running.
6. Be sure to tighten fasteners including bolts and nuts to the specified torque.
7. Place shop jacks or rigid racks at the specified points.
8. Before disconnecting electrical connectors of sensor or units, be sure to disconnect the ground cable from battery.

Scheme 32

1. Remove the clip (B) above air cleaner case. (Scheme 32): Identifying Air Cleaner Case Clip
2. Remove the air cleaner element.

INSTALLATION

Install in the reverse order of removal.

Note. Fasten it with a clip after inserting the lower tab of case.

Identifying Air Cleaner Element Clip And Tab. Scheme 33

INSPECTION

Replace it if excessively damaged or dirty.

Scheme 34

Scheme 35

1. Disconnect the ground cable from battery.
2. Loosen the clamp (A) which connects the air cleaner case and intake duct.
3. Remove the clips (B) of air cleaner case.
4. Disconnect the connector (C) of mass air flow and intake air temperature sensor. (Scheme 34): Identifying Mass Air Flow And Intake Air Temperature Sensor Connector And Air Cleaner Case Clip
5. Remove the intake duct and upper cover from air cleaner case.
6. Remove the air cleaner element.
7. Remove the bolts which install the air cleaner case to body. (Scheme 35): Locating Air Cleaner Case Body Bolts
8. Remove the air cleaner case.

Install in the reverse order of removal.

Tightening torque

33 N.m (3.4 kgf-m, 24.6 ft-lb)

Inspect for cracks and loose connections.

Scheme 36

1. Loosen the clamp (A) which connects the air intake chamber and throttle body.
2. Loosen the clamp (B) which connects the air intake chamber and intake duct.
3. Remove the bolts (C) which connects the air intake chamber to the stay.
4. Disconnect the connector (D). (Scheme 36): Identifying Air Intake Chamber Clamp And Bolts With Connector
5. Disconnect the two blow-by hoses, and then remove the air intake chamber.

Install in the reverse order of removal.

Tightening torque

Clamp (A), (B)

3 N.m (0.3 kgf-m, 2.1 ft-lb)

Bolt (C)

6.5 N.m (0.66 kgf-m, 4.8 ft-lb)

Identifying Air Intake Chamber Clamp And Bolts With Connector. Scheme 37

1. Inspect for cracks and loose connections.
2. Inspect that no foreign objects are mixed in air intake chamber.

Scheme 38

1. Remove the bolts which install the air intake duct on the front side of body.
2. Remove the air intake duct. (Scheme 38): Identifying Air Intake Duct Bolts

Install in the reverse order of removal.

Tightening torque

7.5 N.m (0.76 kgf-m, 5.5 ft-lb)

1. Inspect for cracks and loose connections.
2. Inspect that no foreign objects are mixed in the air intake duct.

Scheme 39

Scheme 40

1. Set the vehicle on a lift.
2. Remove the air intake duct.
3. Remove the air cleaner lower case. < Ref. to «REMOVAL»(/subaru/impreza-wrx/gdgg-2-2005-2007/remont/mechanical/#intake-induction-h4so-engine), Air Cleaner Case. >
4. Remove the resonator chamber mounting nut on the right side of engine compartment. (Scheme 39): Locating Resonator Chamber Mounting Nut
5. Lift-up the vehicle, and then remove the front wheel RH.
6. Remove the front mud guard RH.
7. Remove the resonator chamber from inside front fender. (Scheme 40): Locating Resonator Chamber Nut

Install in the reverse order of removal.

Tightening torque

7.5 N.m (0.76 kgf-m, 5.5 ft-lb)

1. Inspect for cracks and loose connections.
2. Inspect that no foreign objects are mixed in resonator chamber.

See also:
• REMOVAL