Subaru Legacy (2005 year). Service manual — part 856
PS-95
POWER ASSISTED SYSTEM (POWER STEERING)
General Diagnostic Table
2. MEASUREMENT OF STEERING EFFORT
Step
Check
Yes
No
1
CHECK STEERING EFFORT.
1) Stop the vehicle on a concrete road.
2) Start the engine.
3) Run the engine at idle.
4) Install a spring scale on the steering wheel.
5) Pull the spring scale at a right angle to the
steering wheel, and measure both right and left
steering wheel efforts.
NOTE:
When turning the steering more quickly than
necessary from a direction to the other direction
at an engine speed over 2,000 rpm, steering ef-
fort may be heavy. This is caused by flow char-
acteristic of oil pump and is not defective.
Is the steering effort less than
29.4 N (3.0 kgf, 6.6 lbf)?
Adjust the back-
lash.
2
CHECK STEERING EFFORT.
1) Stop the engine.
2) Pull the spring scale at a right angle to the
steering wheel, and measure both right and left
steering wheel efforts.
Is the steering effort less than
294.2 N (30 kgf, 66.2 lbf)?
Perform adjust-
ment.
3
CHECK STEERING WHEEL EFFORT.
1) Remove the universal joint.
2) Measure steering wheel effort.
Is the steering effort less than
2.26 N (0.23 kgf, 0.51 lbf)?
Check, adjust and
replace if neces-
sary.
4
CHECK STEERING WHEEL EFFORT.
Measure steering wheel effort.
Is the difference of steering
effort between clockwise and
counterclockwise less than
20%?
Check, adjust and
replace if neces-
sary.
5
CHECK UNIVERSAL JOINT.
Measure the swing torque of the joint (yoke of
steering column side). <Ref. to PS-22,
INSPECTION, Universal Joint.>
Is the swing torque of universal
joint less than 7.3 N (0.74 kgf,
1.64 lbf)?
Replace with a
new one.
6
CHECK UNIVERSAL JOINT.
Measure the swing torque of the joint (yoke of
gearbox side). <Ref. to PS-22, INSPECTION,
Universal Joint.>
Is the swing torque of universal
joint less than 3.8 N (0.39 kgf,
0.86 lbf)?
Replace with a
new one.
7
CHECK FRONT WHEEL.
Check the front wheel.
If the front wheels have
unsteady revolution or rattling
and brake for dragging?
Inspect, readjust
and replace if nec-
essary.
8
CHECK TIE-ROD ENDS.
Remove the tie-rod ends.
If the tie-rod ends of suspen-
sion have unsteady revolution
or rattling?
Inspect and
replace if neces-
sary.
9
CHECK BALL JOINT.
Remove the ball joint.
If the ball joints of suspension
have unsteady revolution or
rattling?
Inspect and
replace if neces-
sary.
10
CHECK GEARBOX.
Measure the rotating of gearbox.
<Ref. to PS-44, TURNING RESISTANCE OF
GEARBOX, INSPECTION, Steering Gearbox
[LHD Model].> or <Ref. to PS-63, TURNING
RESISTANCE OF GEARBOX, INSPECTION,
Steering Gearbox [RHD Model].>
Is the rotating resistance of
steering gearbox less than
LHD model: 10.5 N (1.1 kgf,
2.4 lbf) or RHD model: 13 N
(1.3 kgf, 2.9 lbf)? Is the differ-
ence between clockwise and
counterclockwise less than
20%?
Readjust the back-
lash, and if ineffec-
tive, replace the
faulty parts.
PS-96
POWER ASSISTED SYSTEM (POWER STEERING)
General Diagnostic Table
3. INSPECTION OF CLEARANCE
This table lists various clearances that must be correctly adjusted to ensure the normal vehicle driving with-
out interfering noise, or any other faults.
11
CHECK GEARBOX.
Measure the sliding of gearbox.
<Ref. to PS-43, SERVICE LIMIT, INSPEC-
TION, Steering Gearbox [LHD Model].> or
<Ref. to PS-62, SERVICE LIMIT, INSPEC-
TION, Steering Gearbox [RHD Model].>
Is the sliding resistance of
steering gearbox less than
LHD model: 400 N (41 kgf, 90
lbf) or RHD model: 314 N (32
kgf, 71 lbf)? Is the difference
between right and left sliding
resistances less than 20%?
Steering effort is
normal.
Readjust the back-
lash, and if ineffec-
tive, replace the
faulty parts.
Location
Minimum allowance mm (in)
(1) Crossmember-to-Hose ASSY
3 (0.12)
(2) Front exhaust pipe-to-Hose ASSY (Turbo model)
15 (0.59)
(3) Front frame side-to-Hose ASSY
10 (0.39)
(4) Turbo cover-to-Hose ASSY (Turbo model)
10 (0.39)
(5) Master cylinder-to-Return hose (Turbo model)
10 (0.39)
(6) Master cylinder-to-Hose clip (Model with vehicle dynamics control (VDC))
10 (0.39)
(7) VDC H/U-to-Hose ASSY (Model with vehicle dynamics control (VDC))
5 (0.20)
(8) Air cleaner-to-Hose ASSY (Turbo model)
5 (0.20)
(9) Air boot-to-Hose ASSY
10 (0.39)
(10) Protector-to-Hose ASSY (Turbo model, DOHC non-turbo model)
10 (0.39)
(11) Blow-by hose-to-Hose ASSY (Turbo model)
8 (0.31)
(12) Over flow hose-to-Hose ASSY (Turbo model)
8 (0.31)
(13) Brake pipe-to-Return hose (Model with ABS)
10 (0.39)
(14) Front suspension bracket-to-Return hose
5 (0.20)
(15) Front wheel apron-to-Return hose
5 (0.20)
(16) VDC H/U bracket-to-Suction hose (Model with vehicle dynamics control (VDC))
5 (0.20)
(17) Air cleaner case-to-Suction hose
5 (0.20)
(18) Air intake duct-to-Suction hose (Turbo model)
10 (0.39)
(19) Air duct-to-Suction hose (Turbo model)
10 (0.39)
(20) Front wheel apron-to-Reservoir tank
5 (0.20)
(21) VDC H/U-to-Reservoir tank (Model with vehicle dynamics control (VDC))
5 (0.20)
(22) Valve housing-to-DOJ (MT model)
12 (0.47)
(23) Valve housing-to-Crossmember (Hole portion)
1 (0.04)
(24) Bracket-to-Crossmember
1 (0.04)
(25) Cylinder-to-Crossmember
5 (0.20)
(26) Elbow-to-Crossmember
1 (0.04)
(27) Cylinder-to-Exhaust pipe
18 (0.71)
(28) Universal joint coupling-to-Turbo cover (Turbo model)
15 (0.59)
(29) Universal joint column side yoke-to-Master cylinder (Closest approach point when uni-
versal joint turns by 360
°) (OUTBACK model)
5 (0.20)
(30) Cruise control-to-Hose ASSY (Model with cruise control)
10 (0.39)
(31) Universal joint coupling-to-ATF level gauge (LHD model)
10 (0.39)
(32) Boot-to-Exhaust pipe (LHD model)
18 (0.71)
(33) Return hose-to-Pressure hose
No contact between hoses
Step
Check
Yes
No
PS-97
POWER ASSISTED SYSTEM (POWER STEERING)
General Diagnostic Table
• LHD model
• RHD model
PS-00515
(4)
(1)
(6)
(15)
(20)
(21)
(22)
(23)
(29)
(30)
(32)
(33)
(24)
(25)
(26)
(27)
(5)
(8),(9)
(13),(14)
(28),(31)
(10),(11),(16)
(3)
(12)
(19)
(18)
(17)
(7)
(2)
PS-00514
(4)
(2)
(10),(11),(16)
(1)
(8),(9)
(12) (19)
(18)
(17)
(20)
(15)
(6)
(5)
(3)
(7)
(13),(14)
(21)
(27)
(24)
(26)
(25)
(23)
(22)
(28)
(29)
(33)
PS-98
POWER ASSISTED SYSTEM (POWER STEERING)
General Diagnostic Table
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