Subaru Legacy III (2000-2003 year). Manual - part 283

CO(H6DO)-30

COOLING

RADIATOR

12) Install under cover.

13) Lower the vehicle.
14) Connect battery ground cable.

15) Fill coolant. <Ref. to CO(H6DO)-22, FILLING
OF ENGINE COOLANT, REPLACEMENT, Engine
Coolant.>
16) Check ATF level. <Ref. to AT-30, INSPEC-
TION, Automatic Transmission Fluid.>

C: INSPECTION

1) Remove radiator cap, top off radiator, and attach
tester to radiator in place of cap.

2) Apply a pressure of 157 kPa (1.6 kg/cm

2

, 23 psi)

to radiator to check if:

(1) Engine coolant leaks at/around radiator.
(2) Engine coolant leaks at/around hoses or
connections.

CAUTION:
• Engine should be off.
• Wipe engine coolant from check points in ad-
vance.
• Be careful to prevent engine coolant from
spurting out when removing tester.
• Be careful also not to deform filler neck of ra-
diator when installing or removing tester.

LU-00095

FU-00009

CO-00127

CO(H6DO)-31

COOLING

RADIATOR CAP

8. Radiator Cap

A: INSPECTION

1) Attach radiator cap to tester.

2) Increase pressure until tester gauge pointer
stops. Radiator cap is functioning properly if it holds
the service limit pressure for five to six seconds.

Standard pressure:

93 — 123 kPa (0.95 — 1.25 kg/cm

2

, 14 — 18 

psi)

Service limit pressure:

83 kPa (0.85 kg/cm

2

, 12 psi)

CAUTION:
Be sure to remove foreign matter and rust from 
the cap in advance otherwise, results of pres-
sure test will be incorrect.

CO-00128

CO(H6DO)-32

COOLING

RADIATOR MAIN FAN AND FAN MOTOR

9. Radiator Main Fan and Fan 

Motor

A: REMOVAL

1) Disconnect battery ground cable.

2) Lift-up the vehicle.
3) Remove under cover.

4) Drain engine coolant completely.
<Ref. to CO(H6DO)-22, Engine Coolant.>
5) Disconnect connectors of main and sub fan mo-
tor.

6) Lower the vehicle.
7) Remove air intake duct.

8) Disconnect over flow hose.

9) Remove reservoir tank.

10) Disconnect radiator inlet hoses from radiator.

(A) Main fan motor connector

(B) Sub fan motor connector

FU-00009

LU-00095

CO-00118

( A )

( B )

IN-00071

CO-00120

CO-00121

CO-00122

CO(H6DO)-33

COOLING

RADIATOR MAIN FAN AND FAN MOTOR

11) Remove radiator sub fan motor assembly.

12) Remove radiator main fan motor assembly.

NOTE:
When removing main fan assembly by lifting it up-
ward, main fan shroud will cause interference with
coolant suction area. In order to avoid this, shift the
main fan assembly over to sub fan side before re-
moving it.

B: INSTALLATION

Install in the reverse order of removal.

NOTE:
Refer to “COMPONENT” for tightening torque.
<Ref. to CO(H6DO)-3, COMPONENT, General
Description.>

C: DISASSEMBLY

1) Remove clip which holds motor connector onto
shroud.

2) Remove nut which holds fan itself onto fan motor
and shroud assembly.

3) Remove screws which install fan motor onto
shroud.

D: ASSEMBLY

Assemble in the reverse order of disassembly.

NOTE:
Refer to “COMPONENT” for tightening torque.
<Ref. to CO(H6DO)-3, COMPONENT, General
Description.>

E: INSPECTION

1) Connect battery as shown in the figure.

Terminal

No. 1 (+) — No. 4 (

−−−−

): Low speed

No. 1 (+), No. 2 (+) — No. 4 (

−−−−

): Middle 

speed
No. 1 (+), No. 2 (+) — No. 3 (

−−−−

), No. 4 (

−−−−

): 

High speed

2) Make sure the main fan motor operates properly.
Replace it if it doesn't.

CO-00129

CO-00130

CO-00131

CO-00132

CO-00133

4 3

2 1

CO-00197