Subaru Impreza 2003 Service Manual page 2687

6. OIL LEAKING
(1) Power cylinder
(2) Cylinder
1) Lift up the vehicle.
2) Even if the location of leak can be easily found
by observing leaking condition, it is necessary to
thoroughly remove the oil from suspected portion
and turn steering wheel from lock to lock about thir-
ty to forty times with engine running, then reinspect
the suspected portion between immediately after
and several hours after this operation.
3) Inspect leakage from "a".
The oil seal is damaged. Replace the valve assem-
bly with a new one.
STEERING GEARBOX [RHD MODEL]
a
b
d
(3) Rack piston
(4) Rack
PS-63
POWER ASSISTED SYSTEM (POWER STEERING)
c
d
(5) Input shaft
(6) Valve housing
4) Inspect leakage from "b".
The torsion bar O-ring is damaged. Replace the
valve assembly with a new one.
5) Inspect leakage from "c".
The oil seal is damaged. Replace the oil seal with a
new one.
6) Inspect leakage from "d".
The pipe is damaged. Replace the faulty pipe or O-
ring with a new one.
c
d
PS-00106