Mitsubishi Evolution X. Manual - part 873

AC703667

198 mm (7.7in)

AC

Lock nut

Edge of bellows
assembly groove

ON-VEHICLE SERVICE

TSB Revision

POWER STEERING

37-15

3. If the measured value is not within the standard value, adjust 

the tie-rod ends (right and left), and repeat Steps 1 and 2.

4. If the measured value is not within the standard value after 

performing Step 3, replace the steering gear and linkage 
assembly. (Refer to 

P.37-31

.)

TIE ROD END BALL JOINT DUST COVER CHECK

M1372008600701

1. Using your fingers, press the dust cover to check for cracks 

or damage.

2. If there are any cracks in the dust cover or it is damaged, 

replace the tie-rod end (Refer to 

P.37-36

).

NOTE: If the dust cover has a  crack or damage, the ball 
joint could be damaged.

TIE ROD END BALL JOINT BREAKAWAY 
TORQUE CHECK

M1372011600217

Required Special Tools:

• MB990326: Preload Socket

• MB991897 or MB992011: Ball Joint Remover

CAUTION

• Loosen the self-locking nut (tie-rod end connection) 

from the ball joint, but do not remove here. Use the spe-
cial tool.

•

AC208247AJ

Cord

Bolt

MB991897
or
MB992011

Nut

Ball joint

To prevent the special tool from dropping off, suspend 
it with a rope.

1. Install special tool MB991897 or MB992011 as shown in the 

figure.

AC104739AB

Parallel

Knob

Bolt

Correct

Wrong

ON-VEHICLE SERVICE

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POWER STEERING

37-16

2. Turn the bolt and knob to make the special tool jaws parallel, 

then hand-tighten the bolt. After tightening, check that the 
jaws are still parallel.
NOTE: To adjust the special tool jaws to be parallel, set the 
orientation of the knob as shown in the figure.

3. Unscrew the bolt to disconnect the ball joint.

ACX01129 AB

MB990326

4. Move the ball joint stud several times and install the nut on 

the stud. Using the special tool MB990326, measure the ball 
joint breakaway torque.

Standard value: 2.9 N

⋅ m (26 in-lb) or less

5. If the breakaway torque exceeds the standard value, replace 

the tie rod end.

6. If the breakaway torque is under the standard value, check 

the ball joint for end play or ratcheting. If no end play or 
ratcheting, the ball joint can be re-used.

CAUTION

Always use a new ball joint nut as it is a self-locking nut.
7. Install the tie rod end to the knuckle, then tighten a new 

self-locking nut to the specified torque.

Tightening torque: 40 

± 8 N⋅ m (30 ± 5 ft-lb)

STATIONARY STEERING EFFORT CHECK

M1372001700945

1. Park the vehicle on a level paved road, position the steering 

wheel in the straight ahead position.

2. Start the engine, and maintain the engine speed at 1000 

± 

100 r/min.

AC609390AB

3. Position the spring scale on the circumference of the 

steering wheel, and measure the steering force at the time 
when the steering wheel is turned to right or left side (within 
the range of one and a half turns) from the center position.

Standard value:
Steering force: 32 N (7.2 lb) or less
Fluctuation band: 5.9 N (1.33 lb) or less

4. If not within the standard value, check and adjust the 

suspected components.

ON-VEHICLE SERVICE

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POWER STEERING

37-17

STEERING WHEEL RETURN TO CENTER CHECK

M1372001800715

Conduct a road test:
1. Make both gradual and sudden turns and check the steering 

wheel return. 

AC000989AC

70˚ or
more

70˚ or
more

2. At a vehicle speed of approximately 35 km/h (22 mph), turn 

the steering wheel 90 degrees, hold a few seconds, then 
release. If the steering wheel then returns 70 degrees or 
more, the return can be judged satisfactory.
NOTE: There will be a momentary feeling or "heaviness" 
when the wheel is turned quickly, but this is not abnormal 
(Oil pump discharge amount is especially apt to be insuffi-
cient during idling). 

DRIVE BELT TENSION CHECK AND 
ADJUSTMENT

M1372001900864

Refer to GROUP 11A 

− Engine Adjustment, and Drive Belt Ten-

sion Check and Adjustment 

P.11A-8

.)

FLUID LEVEL CHECK

M1372002000648

1. Park the vehicle on a flat, level surface.
2. Start the engine, and then turn the steering wheel several 

times to raise the temperature of the fluid to approximately 
50 

− 60° C (122 − 140° F).

3. With the engine running, turn the wheel all the way to the left 

and right several times.

AC608306

With engine stopped

AC

Fluid level change: Within 5 mm (0.2 in)

With engine running

4. Check the fluid in the oil reservoir for foaming or milkiness. 

Check the difference of the fluid level when the engine is 
stopped, and while it is running. If the change of the fluid 
level is 5 mm (0.2 inch) or more, air bleeding should be done 
(Refer to 

P.37-19

).

ON-VEHICLE SERVICE

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POWER STEERING

37-18

FLUID REPLACEMENT

M1372002100902

1. Raise and support the front wheels.

AC507662 AB

Return hose

2. Disconnect the return hose connection, and then connect a 

vinyl hose to the return hose, and drain the fluid into a 
container.

AC705444 AB

Crank angle sensor

Oil filter

3. Disconnect the crank angle sensor connector.
4. While operating the starter motor intermittently, turn the 

steering wheel all the way to the left and right several times 
to drain all of the fluid.

5. Connect the return hose securely, and then secure with the 

clip.

6. Fill the oil reservoir with GENUINE MITSUBISHI POWER 

STEERING FLUID to the lower position of the filler, and then 
bleed the air (Refer to 

P.37-19

).

7. Install the crankshaft position sensor.

AC608435 AD

MUT-III main harness A

V. C. I.

USB cable

Data link connector

8. Use the scan tool MB991958, check if the DTC is set. If it is 

set, erase it.