Mitsubishi Outlander GS45X. Manual - part 1560

SPECIFICATIONS

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POWER STEERING

37-3

SPECIFICATIONS

GENERAL SPECIFICATIONS

M1372000200486

SERVICE SPECIFICATIONS

M1372000301840

Item

Specification

Power steering gear box

Type

Rack and pinion

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

45.6 (1.79)

Oil pump

Type

Vane type

Displacement cm

3

/rev (cu in/rev)

8.1 (0.49)

Relief set pressure MPa (psi)

8.8 (1,276)

Item

Standard value

Limit

Steering wheel free 
play mm (in)

With engine running

−

30 (1.2) or 
less

With engine stopped

16.5 (0.65) or less

−

Steering angle

Inner wheel

38

°40’ ± 1°30’

(Left/right deviation 
within 2

°00’)

−

Outer wheel (reference value)

32

°20’

−

Toe-in mm (in)

1 

± 2 (0.04 ± 0.08)

−

Tie-rod looseness mm (in)

Within 

± 2.0 (0.08)

−

Tie rod end ball joint breakaway torque N

⋅m (in-lb)

2.9 (26) or less

−

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 − 102)

−

Steering gear retention hydraulic pressure 8.8 

− 9.5 (1,276 − 1,378) −

Oil pressure switch operating pressure 
MPa (psi)

OFF 

→ ON

1.5 

− 2.0 (218 − 290)

−

ON 

→ OFF

0.5 

− 2.0 (73 − 290)

−

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]

−

Band crimped width mm (in)

2.4 

− 2.8 (0.09 − 0.11)

−

POWER STEERING DIAGNOSIS

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POWER STEERING

37-4

LUBRICANTS

M1372000400877

SEALANT

M1372000500863

POWER STEERING DIAGNOSIS

INTRODUCTION TO POWER STEERING DIAGNOSIS

M1372008500157

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. Possi-
ble causes of these faults can include defects in the 
gear box, oil pump or steering linkage.

POWER STEERING DIAGNOSIS TROUBLESHOOTING STRATEGY

M1372007300150

Use these steps to plan your diagnostic strategy. If 
you follow them carefully, you will be sure that you 
have exhausted most of the possible ways to find a 
power steering fault.
1. Gather information from the customer.

2. Verify that the condition described by the 

customer exists.

3. Find the malfunction by following the Symptom 

Chart.

4. Verify malfunction is eliminated.

Item

Specified lubricant

Quantity dm

3

 (qt)

Power steering fluid

Genuine MITSUBISHI power 
steering fluid or ATF DEXRON III 
or DEXRON II

Approximately 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 or ATF DEXRON III 
or DEXRON II

As required

O-ring

Item

Specified sealant

Quantity dm

3

 (qt)

Steering gear

Bellows

3M

™ AAD Part No.8663 or 

equivalent

As required

POWER STEERING DIAGNOSIS

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POWER STEERING

37-5

SYMPTOM CHART

M1372007600452

SYMPTOM PROCEDURES

INSPECTION PROCEDURE 1: Excessive Play of Steering Wheel

DIAGNOSIS

STEP 1. Check for looseness at the steering shaft coupling 
section and at the steering wheel linkage.
Q: Is there any looseness?

YES : Repair or replace the part. Then go to Step 3.
NO :  Go to Step 2.

Symptom

Inspection procedure

Reference page

Excessive play of steering wheel

1

P.37-5

Difficult steering wheel operation (insufficient power assist)

2

P.37-6

Rattling noise

3

P.37-8

Shrill noise

4

P.37-9

Squealing noise

5

P.37-9

Hissing noise

6

P.37-10

Droning noise

7

P.37-10

Squeaking noise

8

P.37-11

Vibration

9

P.37-12

Oil leakage from hose connection

10

P.37-12

Oil leakage from hose assembly

11

P.37-12

Oil leakage from oil reservoir

12

P.37-13

Oil leakage from oil pump

13

P.37-13

Oil leakage from steering gear

14

P.37-13

POWER STEERING DIAGNOSIS

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POWER STEERING

37-6

STEP 2. Check the steering wheel free play.
(1) With the engine running (hydraulic operation), set the front 

wheels straight ahead.

(2) Measure the play on the steering wheel circumference 

before the wheels start to move when slightly moving the 
steering wheel in both directions.

Limit: 30 mm (1.2 inch) or less

(3) If the free play exceeds the limit value, set the steering 

wheel straight ahead with the engine stopped. Load 
approximately 5 N (1.1 pound) towards the steering 
circumference and check the play.

Standard value (steering wheel play with engine 
stopped): 16.5 mm (0.65 inch) or less

Q: Does the play exceed the standard value?

YES : Remove the steering gear box (Refer to 

P.37-40

) and 

check the total pinion torque (Refer to 

P.37-40

). Then 

go to Step 3.

NO :  Go to Step 3.

STEP 3. Check the steering wheel play.
Verify that the steering wheel play is not excessive.
Q: Is the steering wheel play excessive?

YES : Repeat to Step 1.
NO :  The procedure is complete.

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

DIAGNOSIS

STEP 1. Check the power steering oil pump drive belt 
tension.
Refer to GROUP 11A 

− On-vehicle service − Drive belt tension 

check 

P.11A-9

 <2.4L>, GROUP 11C 

− On-vehicle service − 

Generator drive belt tension check 

P.11C-8

 <3.0L>.

Q: Is the power steering oil pump drive belt tension within 

the standard value?
YES : Go to Step 2.
NO :  Adjust the tension (Refer to GROUP 11A 

− On-vehicle 

service 

− Drive belt tension check 

P.11A-9

 <2.4L>, 

GROUP 11C 

− On-vehicle service − Generator drive 

belt tension check 

P.11C-8

 <3.0L>). Then go to Step 

10 .