Subaru Legacy 2004 Service Manual page 3346

POWER ASSISTED SYSTEM (POWER STEERING)
NOTE:
It is likely that although one judges fluid leakage, there is actually no leakage. This is because the fluid spilt
during the last maintenance was not completely wiped off. Be sure to wipe off spilt fluid thoroughly after main-
tenance.
(A)
(22)
(A) 3.0 L model
Fluid leaking area
Leakage from connecting portions of
pipes and hoses, numbered with (1)
through (10) in figure
Leakage from hose (11), (12) and
(13) in figure
Leakage from surrounding of cast iron
portion of oil pump (14) and (15) in
figure
Leakage from oil tank (16) and (17) in
figure
Leakage from filler neck (18)
Leakage from surrounding of power
cylinder of gearbox (19) in figure
Leakage from control valve of gear-
box (20) and (21) in figure
(22) Leakage from connecting por-
tion of cooler pipe and hose.
Pipe Assembly [RHD Model]
(B)
(15)
(3)
(20)
(4)
(B) Except for 3.0 L model
Possible cause
Insufficient tightening of flare nut, adhesion of
dirt, damage to flare or flare nut or eye bolt
Poor insertion of hose or clamping
Damaged O-ring or gasket
Crack or damage in hose
Crack or damage in hose hardware
Damaged O-ring
Damaged gasket
Crack in oil tank
Damaged cap packing
Crack in root of filler neck
High fluid level
Damaged oil seal
Damaged packing or oil seal
Damage in control valve
Insufficient tightening of connecting portion.
PS-76
(10)
(14)
(9)
(19)
(6)
(5)
(1)
(2)
(21)
(8)
(13)
Loosen and retighten. Replace if ineffec-
tive.
Retighten or replace the clamp.
Replace O-ring or gasket pipe or hose
with new one, if ineffective, replace the
gearbox also.
Replace with a new one.
Replace with a new one.
Replace the oil pump.
Replace the oil pump.
Replace the oil tank.
Replace the cap.
Replace the oil tank.
Adjust the fluid level.
Replace the oil seal.
Replace the problem parts.
Replace the control valve.
Loosen and retighten.
(11)
(16)
(18)
(17)
(12)
(7)
PS-00562
Corrective action