Subaru Legacy IV (2008 year). Manual - part 45

EC(H4SO)-2

General Description

EMISSION CONTROL (AUX. EMISSION CONTROL DEVICES)

1. General Description

A: CAUTION

• Wear appropriate work clothing, including a cap,
protective goggles and protective shoes when per-
forming any work.
• Remove contamination including dirt and corro-
sion before removal, installation or disassembly.
• Keep the disassembled parts in order and pro-
tect them from dust and dirt.
• Before removal, installation or disassembly, be
sure to clarify the failure. Avoid unnecessary re-
moval, installation, disassembly and replacement.
• Vehicle components are extremely hot after driv-
ing. Be wary of receiving burns from heated parts.
• Be sure to tighten fasteners including bolts and
nuts to the specified torque.
• Place shop jacks or rigid racks at the specified
points.
• Before disconnecting connectors of sensors or
units, be sure to disconnect the ground cable from
battery.

B: PREPARATION TOOL

1. SPECIAL TOOL

ILLUSTRATION

TOOL NUMBER

DESCRIPTION

REMARKS

18353AA000

CLAMP PLIERS

• Used for removing and installing the PCV 
hose.
• This is a general tool made by the French 
company CAILLAU. (code) 54.0.000.205
To make this easier to obtain, it has been pro-
vided with a tool number.

ST18353AA000

EC(H4SO)-3

Front Catalytic Converter

EMISSION CONTROL (AUX. EMISSION CONTROL DEVICES)

2. Front Catalytic Converter

A: REMOVAL

The front catalytic converter is integrated into the
front exhaust pipe; therefore, refer to “Front Ex-
haust Pipe” for the removal procedure. <Ref. to
EX(H4SO)-4, REMOVAL, Front Exhaust Pipe.>

B: INSTALLATION

The front catalytic converter is integrated into the
front exhaust pipe; therefore, refer to “Front Ex-
haust Pipe” for the installation procedure. <Ref. to
EX(H4SO)-5, INSTALLATION, Front Exhaust
Pipe.>

C: INSPECTION

1) Check the connections and welds for exhaust
leaks.
2) Check for hole or rust.

EC(H4SO)-4

Rear Catalytic Converter

EMISSION CONTROL (AUX. EMISSION CONTROL DEVICES)

3. Rear Catalytic Converter

A: REMOVAL

The rear catalytic converter is integrated into the
center exhaust pipe; therefore, refer to “Center Ex-
haust Pipe” for the removal procedure. <Ref. to
EX(H4SO)-7, REMOVAL, Center Exhaust Pipe.>

B: INSTALLATION

The rear catalytic converter is integrated into the
center exhaust pipe; therefore, refer to “Center Ex-
haust Pipe” for the installation procedure. <Ref. to
EX(H4SO)-7, INSTALLATION, Center Exhaust
Pipe.>

C: INSPECTION

1) Check the connections and welds for exhaust
leaks.
2) Check for hole or rust.

EC(H4SO)-5

Canister

EMISSION CONTROL (AUX. EMISSION CONTROL DEVICES)

4. Canister

A: REMOVAL

1) Set the vehicle on a lift.
2) Disconnect the ground cable from battery.

3) Lift up the vehicle.
4) Remove the rear wheel LH.
5) Remove the rear mud guard LH. <Ref. to EI-29,
REAR MUD GUARD, REMOVAL, Mud Guard.>
6) Disconnect quick connector (A).
7) Disconnect the drain valve connector (B).
8) Remove clip (C).

9) Remove the canister from body.

IN-00203

EC-02079

(A)

(A)

(C)

(B)

EC-02080