Subaru 2004 LEGACY, Service Manual

Page: 601 / 609

PS-82
POWER ASSISTED SYSTEM (POWER STEERING)
Oil Pump
(8) Measure the regular pressure.
ST1 925711000 PRESSURE GAUGE
ST2 34099AC020 ADAPTER HOSE B
ST3 34099AC010 ADAPTER HOSE A
Service limit:
981 kPa (10 kg/cm
2
, 142 psi) or less
(9) If it is not within the specified value, replace
the troubled part caused by following symptoms.
(Pipe or hose clogged, leaks from fluid line, and
mixture of foreign matters in fluid line)
2) Measure the relief pressure.
(1) Using the STs, measure the relief pressure.
(2) Close the valve.
(3) Measure the relief pressure.
ST1 925711000 PRESSURE GAUGE
ST2 34099AC020 ADAPTER HOSE B
ST3 34099AC010 ADAPTER HOSE A
Service limit:
Non-turbo model (Except for 3.0 R model):
6,767 — 7,453 kPa
(69 — 76 kg/cm
2
, 981 — 1,081 psi)
Turbo model:
7,350 — 8,036 kPa
(75 — 82 kg/cm
2
, 1,067 — 1,165 psi)
3.0 R model:
8,300 — 9,000 kPa
(85 — 92 kg/cm
2
, 1,204 — 1,305 psi)
(4) If it is not within the specified value, replace
the oil pump.
3) Measure working pressure.
(1) Using the STs, measure the working pres-
sure.
(2) Open the valve.
(3) Measure the working pressure of control
valve by turning steering wheel from stop to
stop.
ST1 925711000 PRESSURE GAUGE
ST2 34099AC020 ADAPTER HOSE B
ST3 34099AC010 ADAPTER HOSE A
Service limit:
7,650 — 8,330 kPa (78 — 85 kg/cm
2
, 1,110 —
1,208 psi)
(4) If it is not within the specified value, mea-
sure the steering effort. <Ref. to PS-88, MEA-
SUREMENT OF STEERING EFFORT,
INSPECTION, General Diagnostic Table.> If it is
not within specified value, replace the control
valve itself or control valve and pinion as a sin-
gle unit with new ones.
(1) Valve
(1) Valve
PS-00152
PS-00153
(1) Valve
PS-00152