Mitsubishi Outlander XL. Manual - part 703

GROUP 37

POWER STEERING

CONTENTS

GENERAL SPECIFICATIONS..........

37-3

SERVICE SPECIFICATIONS..........

37-3

LUBRICANTS......................

37-3

SEALANT.........................

37-4

GENERAL INFORMATION.............

37-4

POWER STEERING DIAGNOSIS........

37-4

INTRODUCTION TO POWER STEERING
DIAGNOSIS.......................

37-4

POWER STEERING DIAGNOSIS
TROUBLESHOOTING STRATEGY........

37-5

SYMPTOM CHART...................

37-5

SYMPTOM PROCEDURES..............

37-5

INSPECTION PROCEDURE 1: Excessive Play
of Steering Wheel.................

37-5

INSPECTION PROCEDURE 2: Difficult
Steering Wheel Operation (Insufficient
Power Assist).....................

37-6

INSPECTION PROCEDURE 3: Rattling Noise
..................................

37-8

INSPECTION PROCEDURE 4: Shrill Noise
..................................

37-8

INSPECTION PROCEDURE 5: Squealing
Noise.............................

37-8

INSPECTION PROCEDURE 6: Hissing Noise
..................................

37-9

INSPECTION PROCEDURE 7: Droning Noise
..................................

37-9

INSPECTION PROCEDURE 8: Squeaking
Noise............................

37-10

INSPECTION PROCEDURE 9: Vibration
.................................

37-10

INSPECTION PROCEDURE 10: Oil Leakage
from Hose Connection.............

37-11

INSPECTION PROCEDURE 11: Oil Leakage
from Hose Assembly...............

37-11

INSPECTION PROCEDURE 12: Oil Leakage
from Oil Reservoir...............

37-11

INSPECTION PROCEDURE 13: Oil Leakage
from Oil Pump....................

37-12

INSPECTION PROCEDURE 14: Oil Leakage
from Steering Gear...............

37-12

SPECIAL TOOLS..................

37-12

ON-VEHICLE SERVICE.............

37-14

STEERING WHEEL FREE PLAY CHECK
...............................

37-14

STEERING ANGLE CHECK...........

37-14

BALL JOINT DUST COVER CHECK. . . .

37-15

TIE ROD END BALL JOINT BREAKAWAY
TORQUE CHECK...................

37-15

STATIONARY STEERING EFFORT CHECK
...............................

37-16

STEERING WHEEL RETURN TO CENTER
CHECK..........................

37-16

DRIVE BELT TENSION CHECK.......

37-17

FLUID LEVEL CHECK..............

37-17

37-1

Continued on next page

FLUID REPLACEMENT..............

37-17

POWER STEERING SYSTEM AIR BLEEDING
...............................

37-18

OIL PUMP PRESSURE TEST.........

37-18

INSPECTION OF STEERING COLUMN SHAFT
ASSEMBLY IMPACT ABSORBING MECHANISM
...............................

37-19

STEERING WHEEL.................

37-20

REMOVAL AND INSTALLATION.......

37-20

STEERING SHAFT.................

37-23

REMOVAL AND INSTALLATION.......

37-23

DISASSEMBLY AND ASSEMBLY.......

37-27

POWER STEERING GEAR BOX AND LINKAGE
...............................

37-28

REMOVAL AND INSTALLATION.......

37-28

PINION TOTAL ROTATION TORQUE CHECK
...............................

37-31

TIE-ROD OSCILLATING TORQUE CHECK
...............................

37-32

TIE-ROD END BALL JOINT DUST COVER
CHECK..........................

37-32

DISASSEMBLY AND ASSEMBLY.......

37-32

POWER STEERING OIL PUMP ASSEMBLY
...............................

37-34

REMOVAL AND INSTALLATION.......

37-34

INSPECTION.....................

37-36

DISASSEMBLY AND ASSEMBLY.......

37-36

INSPECTION....................

.37-39

POWER STEERING HOSES...........

37-39

REMOVAL AND INSTALLATION.......

37-39

INSPECTION.....................

37-41

37-2

GENERAL SPECIFICATIONS

M13702000002USA0000010000

ITEM

SPECIFICATION

Power steering gear box

Type

Rack and pinion

Stroke ratio (Rack stroke/Steering wheel
maximum turning radius)

45.6

Oil pump

Type

Vane type

Displacement cm3/rev (cu in/rev)

8.1 (0.49)

Relief set pressure MPa (psi)

8.8 (1,276)

SERVICE SPECIFICATIONS

M13702000003USA0000010000

ITEM

STANDARD VALUE

LIMIT

Steering  wheel  free
play mm (in)

With engine running

-

30 (1.2)

With engine stopped

16.5 (0.6) or less

-

Steering angle

Inside wheel

39°

-

Outside wheel (reference)

32°

-

Toe-in mm (in)

1 ± 2 (0.04 ± 0.09)

-

Tie rod end ball joint breakaway torque N·m (in-lb)

2.9(26) or less

-

Tie rod swing resistance N (lb) [Tie rod swing torque N·m (in-lb)]

5 - 18 (44 - 80)
[1.5 - 4.9 (13.2 - 43.4)]

-

Engine idle speed r/min

650 ± 100

-

Stationary steering effort N (lb) [Fluctuation allowance N (lb)]

29 (6.5) or less
[5.9 (1.33) or less]

-

Oil pump pressure MPa
(psi)

Oil pump relief pressure

8.8 - 9.5 (1,276 - 1,378) -

Pressure under no-load conditions

0.2 - 0.7 (29 - 101)

-

Steering gear retention hydraulic pressure 8.8 - 9.5 (1,276 - 1,378) -

Steering gear total pinion torque N·m (in-lb) [Change in torque N·m
(in-lb)]

0.6 - 1.6 (5.3 - 14.2)
[0.4 (3.5) or less]

-

Opening dimension of special tool MB991561 mm (in)

2.9 (0.11)

-

Band crimped width mm (in)

2.4 - 2.8 (0.09 - 0.11)

-

LUBRICANTS

M13702000004USA0000010000

ITEM

SPECIFIED LUBRICANT

QUANTITY dm3(qt)

Power steering fluid

GENUINE MITSUBISHI POWER
STEERING FLUID

1.0 (1.06)

Steering gear

Bellows

Silicon grease

As required

Oil pump

Friction surface of rotor vane,
cam ring and pump cover

GENUINE MITSUBISHI POWER
STEERING FLUID

As required

O-ring

POWER STEERING

37-3

GENERAL SPECIFICATIONS

SEALANT

M13702000005USA0000010001

ITEM

SPECIFIED LUBRICANT

QUANTITY dm3(qt)

Steering gear

Bellows

3M™  AAD  Part  No.8663  or
equivalent

As required

GENERAL INFORMATION

M13702000001USA0000010000

The steering wheel has three spokes and is equipped
with SRS (Supplemental Restraint System).
The  steering  column  has  a  shock  absorbing
mechanism and a tilt steering mechanism.
The  hydraulic  sensor,  which  linearly  controls  the
hydraulic pressure change when the wheel is turned,
has been adopted to improve the steering stability.

The steering system uses a vane oil pump with a fluid
flow control system, so that steering effort varies with
engine speed.

ZC5018320000

Steering wheel

Steering column 
shaft assembly

Pressure hose 
assembly

Pressure sensor 

Oil reservoir

Suction hose

Oil pump 

Steering gear

Return hose

Cross member

POWER STEERING DIAGNOSIS

INTRODUCTION TO POWER STEERING DIAGNOSIS

M13702000085USA0000010000

Hydraulic  power  steering  is  used  for  all  vehicles.
Faults  in  the  power  steering  can  include  excessive
play  of  the  steering  wheel,  difficult  steering  wheel

operation, noise, vibration, and oil leaks, etc. Possible
causes of these faults can include defects in the gear
box, oil pump or steering linkage.

37-4

POWER STEERING

SEALANT