Subaru Legacy III (2000-2003 year). Manual - part 17

PM-18

PERIODIC MAINTENANCE SERVICES

FUEL LINE

8. Fuel Line

A: INSPECTION

The fuel line is located mostly internally, so check
pipes, areas near pipes, and engine compartment
piping for rust, hose damage, loose bands, etc. If
faulty parts are found, repair or replace them. 
• 2.0 L non-turbo and 2.5 L with OBD models
<Ref. to FU(H4SO)-70, Fuel Delivery, Return and
Evaporation Lines.>
• 2.0 L non-turbo and 2.5 L without OBD models
<Ref. to FU(H4SOw/oOBD)-67, Fuel Delivery, Re-
turn and Evaporation Lines.>
• 3.0 L model
<Ref. to FU(H6DO)-73, Fuel Delivery, Return and
Evaporation Lines.>
• TURBO model
<Ref. to FU(H4DOSTC)-67, Fuel Delivery, Return
and Evaporation Lines.>

PM-19

PERIODIC MAINTENANCE SERVICES

FUEL FILTER

9. Fuel Filter

A: REPLACEMENT

Refer to Fuel section for replacing fuel filter.
• 2.0 L non-TURBO and 2.5 L with OBD models
<Ref. to FU(H4SO)-67, Fuel Filter.>
• 2.0 L non-TURBO and 2.5 L without OBD models
<Ref. to FU(H4SOw/oOBD)-64, Fuel Filter.>
• 2.0 L TURBO model
<Ref. to FU(H4DOSTC)-64, Fuel Filter.>
• 3.0 L model
<Ref. to FU(H6DO)-70, Fuel Filter.>

B: INSPECTION

1) If clogged or exceeds the service limit for re-
placement, replace the fuel filter.
2) If water remains, shake the fuel filter to drain.

PM-20

PERIODIC MAINTENANCE SERVICES

AIR CLEANER ELEMENT

10.Air Cleaner Element

A: REPLACEMENT

1. 2.0 L NON-TURBO AND 2.5 L MODEL

1) Remove the air intake duct from air cleaner
case.
2) Remove the bolt (A) which installs air cleaner
case to stays.
3) Remove the clip (B) above the air cleaner case.

4) Remove the air cleaner element.

5) Install in the reverse order of removal.

NOTE:
Fasten with a clip after inserting the lower tab of the
case.

2. 2.0 L TURBO AND 3.0 L MODEL

1) Loosen clamp (A), and separate air cleaner up-
per cover and air intake boot. (3.0 L model)
2) Remove the clip (B) above the air cleaner upper
cover.
• 3.0 L model

• 2.0 L turbo model

3) Remove air cleaner element.
4) Install in the reverse order of removal.

NOTE:
Before installing air cleaner upper cover, align
holes with protruding portions of air cleaner lower
case, then secure upper cover to lower case.

IN-00039

(B)

(B)

(B)

(A)

PM-00087

PM-00126

( A )

( B )

( B )

(B)

PM-00099

PM-00127

PM-21

PERIODIC MAINTENANCE SERVICES

COOLING SYSTEM

11.Cooling System

A: INSPECTION

1) Check radiator for leakage, filling it with coolant
and attach radiator cap tester (A) to the filler neck.
Then apply a pressure of 157 kPa (1.6 kg/cm

2

, 23

psi) and check the following points:
• Each portion of radiator for leakage
• Hose joints and other connections for leakage

NOTE:
• When attaching or detaching tester and when
operating tester, use special care not to deform ra-
diator filler neck.

• Non-turbo model

• Turbo model

• When performing this check, be sure to keep the
engine stationary and fill radiator with coolant.
• Wipe off check points before applying pressure.
• Use care not to spill coolant when detaching
tester from radiator.

2) Check the radiator cap valve open pressure us-
ing radiator cap tester.

NOTE:
Rust or dirt on cap may prevent valve from func-
tioning normally: be sure to clean cap before test-
ing.
Raise the pressure until the needle of gauge stops
and see if the pressure can be retained for five to
six seconds. The radiator cap is normal if a pres-
sure above the service limit value has been main-
tained for this period.

Radiator cap valve open pressure

Standard value:

93 — 123 kPa (0.95 — 1.25 kg/cm

2

, 14 — 18 

psi)

Service limit:

83 kPa (0.85 kg/cm

2

 , 12 psi)

3) If the coolant temperature exceeds 76.0 to
80.0

°

C (169 to 176

°

F) while radiator is not so hot,

check thermostat. If thermostat does not open at
76.0 to 80.0

°

C (169 to 176

°

F), replace it with a new

one.
4) If electric fan does not operate when coolant
temperature exceeds 95

°

C (203

°

F), check the

electric fan system.

( A )

PM-00128

CO-00043

( A )

(A) Check position for deformation

(B) Check position for deformation, damage and 

rust.

PM-00023

PM-00089

(B)

(A)

(A)