Subaru LEGACY 2006 Manual page 4012

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POWER ASSISTED SYSTEM (POWER STEERING)
NOTE:
There are conditions in which a fluid leak is diagnosed, but is not actually leaking. This is because the fluid
spilt during the last maintenance was not completely wiped off. Be sure to wipe off spilt fluid thoroughly after
maintenance.
(A)
(22)
(A) H6 model
Fluid leaking area
Leakage from the connections of
pipes and hoses, numbered (1)
through (8) in the figure
Leakage from hose (9) through (13) in
the figure
Leakage from surrounding of cast iron
portion of oil pump, (14) and (15) in
the figure
Leakage from oil tank, (16) and (17) in
the figure
Leakage from filler neck of (18)
Leakage from power cylinder of gear-
box area (19) in the figure
Leakage from (20), (21) in the figure
and control valve of gearbox
(22) Leakage from the joints between
cooler pipe and hose.
Pipe Assembly
(B)
(15)
(3)
(19) (2)
(4)
(21)
(1)
(20)
(B) H4 model
Possible cause
Insufficient tightening of flare nut, adhesion of
dirt, damage to flare or flare nut or eye bolt
Improper installation of hose or clamp
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
Fluid level too high
Damaged oil seal
Damaged packing or oil seal
Damage in control valve
Insufficient tightening of connecting portion.
PS-44
(7)
(11)
(14)
(8)
(12)
(5) (6)
(9)
(10)
(13)
Corrective action
Loosen and retighten. Replace if ineffec-
tive.
Retighten or replace the clamp.
Replace the O-ring, gasket pipe or hose
with new part, if still no improvement,
replace the gearbox as well.
Replace with a new part.
Replace with a new part.
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.
(16)
(18)
(17)
PS-00771