2009 SUBARU TRIBECA power steering fluid

PS-37
Pipe Assembly
POWER ASSISTED SYSTEM (POWER STEERING)
6. Pipe Assembly
A: REMOVAL
1) Disconnect the ground cable from the battery.
2) Lift-up the vehicle, and then remove the front
crossmember support plate and jack-up plate.
3) Remove the one pipe joint at the center of the
gearbox, and connect the vinyl hose to the pipe and
the joint. Discharge the fluid by turning the steering
wheel fully clockwise and counterclockwise. Dis-
charge the fluid similarly from other pipes.
4) Remove the clamp E from return hose and pres-
sure hose.
5) Disconnect the pipe D from return hose and pipe
C from pressure hose.
6) Remove the air intake duct. 7, REMOVAL, Air Intake Duct.>
(1) Front crossmember support plate
(2) Jack–up plate
(1) Pipe A
(2) Pipe B
(2)(1)
(1)
FS-00200
(2)
PS-00553
(1)
(1) Return hose
(2) Pressure hose
(3) Clamp E
(1) Pipe C
(2) Pipe D
(3) Pressure hose
(4) Return hose
PS-00537
(3)
(1)
(2)
PS-00538
(4)
(3)
(2)
(1)

PS-38
Pipe Assembly
POWER ASSISTED SYSTEM (POWER STEERING)
7) Disconnect the suction hose and pressure hose
from oil pump.
8) Disconnect the suction hose and return hose
from the reservoir tank.
9) Remove the oil cooler pipe.
10) Remove the hose bracket and take out the
hose assembly from vehicle.
B: INSTALLATION
1) Install in the reverse order of removal.
Tightening torque:
COMPONENT, General Description.>
2) Fill with the specified fluid.
CAUTION:
Never start the engine before feeding the fluid
otherwise the vane pump might be seized.
3) Finally, check the clearance between pipes or
hoses as shown in the figure indicated in “General
Diagnostic Table”. OF CLEARANCE, INSPECTION, General Diag-
nostic Table.>
(1) Suction hose
(2) Pressure hose
(1) Reservoir tank
(2) Suction hose
(3) Return hose
PS-00736
(1)
(2)
PS-00737(3)
(2)
(1)
(1) Hose ASSY
(2) Hose bracket
PS-00738
PS-00739
(2)
(1)

PS-39
Pipe Assembly
POWER ASSISTED SYSTEM (POWER STEERING)
C: INSPECTION
Check all disassembled parts for wear, damage or other problems. Repair or replace the defective parts as
necessary.
CAUTION:
Although the surface layer materials of rubber hoses have excellent weathering resistance, heat re-
sistance and resistance for low temperature brittleness, they are likely to be damaged chemically by
brake fluid, battery electrolyte, engine oil and automatic transmission fluid and their service lives are
to be very shortened. Wipe off hoses immediately if any of these come into contact with the hoses.
Since resistances for heat or low temperature brittleness are gradually declining according to time
accumulation of hot or cold conditions for the hoses and their service lives are shortening accord-
ingly, it is necessary to perform careful inspection frequently when the vehicle is used in hot weather
areas, cold weather areas and a driving condition in which many steering operations are required in
short time.
Particularly continuous work of relief valve over 5 seconds causes to reduce service lives of the hos-
es, the oil pump, the fluid, etc. due to over heat.
Par t Maintenance par ts Corrective action
Pipe
•O–ring fitting surface damage
•Nut damage
•Pipe damage
Replace with a new part.
Clamp • Loose clamps Replace with a new part.
Hose
•Flare surface damage
•Flare nut damage
•Outer surface cracks
•Outer surface wear
•Clip damage
•End coupling or adapter for deformation
Replace with a new part.
Tr o u b l e P o s s i b l e c a u s e C o r r e c t i v e a c t i o n
Pressure hose burst
Excessive holding time of relief status Instruct customers.
Malfunction of the relief valve Replace the oil pump.
Poor cold character istic of fluid R eplace fluid.
Disconnection of the return
hose
Improper connection Repair.
Loosening of the clip Retighten.
Poor cold character istic of fluid R eplace fluid.
Fluid slightly leaking out of
hose
Wrong layout, tensioned Replace the hose.
Excessive play of engine due to deterioration of
engine mounting rubberReplace the parts if defective.
Improper stop position of pitching stopper Replace the parts if defective.
Crack on hose
Excessive holding time of relief statusReplace.
Instruct customers.
Excessive tightening torque for return hose clip Replace.
Power steer ing fluid, engine oil, electrolyte adhere
on the hose surface
Replace.
Be careful during service work.
To o m a n y u s e s i n e x t r e m e l y c o l d w e a t h e rReplace.
Instruct customers.

PS-40
Pipe Assembly
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.
Fluid leaking area Possible cause Corrective action
Leakage from pipe and hose connec-
tions numbered with (1) through (8) in
the figure
Insufficient tightening of flare nut, adhesion of
dirt, damage to flare or flare nut or eye bolt
Loosen and retighten. Replace if ineffec-
tive.
Improper installation of hose or clamp Retighten or replace the clamp.
Damaged O-ring or gasket
Replace the O-ring, gasket pipe or hose
with new one, if still no improvement,
replace the gearbox as well.
Leakage from hose (9) through (13) in
the figure
Crack or damage in hose Replace with a new part.
Crack or damage in hose hardware Replace with a new part.
Leakage from surrounding of cast iron
portion of oil pump, (14) and (15) in
the figure
Damaged O–ring Replace the oil pump.
Damaged gasket Replace the oil pump.
Leakage from oil tank, (16) and (17) in
the figureCrack in oil tank Replace the oil tank.
Leakage from filler neck of (18)
Damaged cap packing Replace the cap.
Crack in root of filler neck Replace the oil tank.
Fluid level too high Adjust the fluid level.
Leakage from power cylinder of gear-
box area (19) in the figureDamaged oil seal Replace the oil seal.
Leakage from (20), (21) in the figure
and control valve of gearbox
Damaged packing or oil seal Replace the problem parts.
Damage in control valve Replace the control valve.
(22) Leakage from the joints between
cooler pipe and hose.Insufficient tightening of connecting portion. Loosen and retighten.
PS-00740
(1)
(19)
(4)
(2)
(7)
(20)
(3)
(21)
(15)
(8)
(14)
(12)
(17)
(9)
(5)
(6)
(10)(13)
(18)
(16)
(11)
(22)

PS-41
Oil Pump
POWER ASSISTED SYSTEM (POWER STEERING)
7. Oil Pump
A: REMOVAL
1) Disconnect the ground cable from the battery.
2) Remove the air intake duct. 7, REMOVAL, Air Intake Duct.>
3) Remove the pulley belt cover.
4) Remove the V-belts.
5) Disconnect the connector from power steering
pump switch.
6) Disconnect the pressure hose and suction hose
from power steering pump.
CAUTION:
•Do not spill power steering fluid.
•To prevent foreign matter from entering the
hose and pipe, cover the open ends with clean
cloth.
7) Remove the installation bolt of the power steer-
ing pump bracket.
8) Place the oil pump bracket in a vise, and remove
the two bolts from the front side of the oil pump.
CAUTION:
When securing the oil pump bracket in a vice,
hold the oil pump bracket with the least possi-
ble force between two pieces of wood.
9) Remove the bolt from the rear side of oil pump.
10) Disassemble the oil pump and bracket by in-
serting a flat tip screwdriver as shown in the figure.
B: INSTALLATION
1) Install in the reverse order of removal.
2) Replace the fluid and perform air purge.
Tightening torque:
eral Description.>
CAUTION:
Never start the engine before filling with fluid,
as doing so may cause the vane pump to seize.
(1) Suction hose
(2) Pressure hose
PS-00736
(1)
(2)
PS-00741
PS-00742
PS-00743
PS-00129

PS-45
Oil Pump
POWER ASSISTED SYSTEM (POWER STEERING)
3) Rotating resistance of pulley
Service limit:
Maximum load: 9.22 N (0.94 kgf, 2.07 lb) or
less
NOTE:
•A rather higher value may be indicated when pul-
ley starts turning.
•Measure the load during rotation to make a judg-
ment.
3. HYDRAULIC PRESSURE
NOTE:
•To measure hydraulic pressure correctly, be sure
to complete all the items in “INSPECTION”, prior to
performing the measurement. SPECTION, General Diagnostic Table.>
•Do not leave the valve of pressure gauge closed
or hold the steering wheel at lock for 5 seconds or
more in any case, this can damage the oil pump.
•Before attaching a pressure gauge, place a
wastecloth at locations where fluid can be expected
to spill. Wipe off any spilt fluid completely after the
measurement.
1) Regular pressure measurement
(1) Connect the ST1, ST2 and ST3.
ST1 925711000 PRESSURE GAUGE
ST2 34099AC020 ADAPTER HOSE B
ST3 34099AC010 ADAPTER HOSE A
(2) Remove the air intake duct.
(3) Disconnect the pipe C from pump.
(4) Using the gasket (Part No. 34621AC021)
and bolt (Part No. 34620AC010), install the ST2
to pump instead of pressure hose.
(5) Install the ST3 to the end of pressure hose
which is removed from pump.
(6) Replenish power steering fluid up to the
specified level.
(7) Open the valve, and start the engine.
(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/cm2, 142 psi) or less
(9) If it is not within the specification, replace the
problem part for the following problems. (Pipe
or hose clogged, leaks from fluid line, and mix-
ture of foreign matter in fluid line)
(1) Spring balance
PS-00148
(1) Suction hose
(2) Pressure hose
(1) Valve
PS-00736
(1)
(2)
PS-00152

PS-47
Reservoir Tank
POWER ASSISTED SYSTEM (POWER STEERING)
8. Reservoir Tank
A: REMOVAL
1) Drain fluid from the reservoir tank.
2) Disconnect the hose from reservoir tank.
CAUTION:
To prevent foreign matter from entering the
hose and pipe, cover the open ends of them
with clean cloth.
3) Remove the bolt and remove the reservoir tank
from the body.
CAUTION:
Do not separate the reserve tank and bracket.
B: INSTALLATION
1) Install in the reverse order of removal.
2) Replenish power steering fluid up to the speci-
fied level.
Tightening torque:
33 N·m (3.37 kgf-m, 24.3 ft-lb)
C: INSPECTION
Check the reservoir tank for cracks, breakage or
damage. If a failure is found, replace the reservoir
tank.
(1) Reservoir tank
(2) Suction hose
(3) Return hose
PS-00744(3)
(2)
(1)

PS-48
Power Steering Fluid
POWER ASSISTED SYSTEM (POWER STEERING)
9. Power Steering Fluid
A: SPECIFICATION
B: INSPECTION
1) Check the power steering fluid for deterioration
or contamination. If the fluid is highly deteriorated
or contaminated, drain it and refill with new fluid.
2) Check the joints and units for oil leakage. If any
oil leaks are found, repair or replace the applicable
part.
3) Inspect the fluid level of reservoir tank with vehi-
cle on level surface and engine stopped.
If the level is at “MIN. ” point or below, add fluid to
keep the level in the specified range of the indica-
tor. If at “MAX. ” point or above, drain fluid by using
a syringe or the like.
(1) Check at power steering fluid temperature
20°C (68°F); read the fluid level on the “COLD”
side.
(2) Check at power steering fluid temperature
80°C (176°F); read the fluid level on the “HOT”
side.
C: REPLACEMENT
1) Lift-up the vehicle.
2) Remove the crossmember support.
3) Remove the pipe joint in the center of gearbox,
and connect the vinyl hose to the pipe and joint.
Wipe fluid off while turning the steering wheel.
4) Add the specified fluid to reservoir tank at “MAX”
level.
5) Continue to turn the steering wheel slowly from
lock to lock until the bubbles stop appearing on oil
surface while keeping the fluid at the level in the
Step 4).
6) If the steering wheel is turned in a low fluid level
condition, air will be sucked into the pipe. If sucked,
leave it about half an hour and then do the step 5)
again.
7) Start the engine and let it idle.
8) Continue to turn the steering wheel slowly from
lock to lock again until the bubbles stop appearing
on oil surface while keeping the fluid at the level in
Step 4).
Normally bubbles will stop appearing after turning
the steering wheel from lock to lock three times.
9) In case bubbles do not stop appearing in the
tank, leave it about half an hour and then do the
step 4) all over again.
10) Lower the vehicle, and then idle the engine.
11) Continue to turn the steering wheel from lock to
lock until the bubbles stop appearing and change of
the fluid level is within 3 mm (0.12 in).
12) In case the following happens, leave it about
half an hour and then do step 8) to 11) again.
(1) The fluid level changes over 3 mm (0.12 in).
(2) Bubbles remain on the upper surface of the
fluid.
(3) Grinding noise is generated from oil pump.
13) Check the fluid leakage after turning steering
wheel from lock to lock with engine running.
Recommended power steering fluid Manufacturer
AT F D E X R O N I I I o r e q u i v a l e n t
B.P.
CALTEX
CASTROL
MOBIL
SHELL
TEXACO
PS-00745
HOT MAXHOT MAINCOLD MAXCOLD MAIN