Mitsubishi Lancer Evolution X. Manual - part 218

FRONT SUSPENSION DIAGNOSIS

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FRONT SUSPENSION

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INSPECTION PROCEDURE 2: Excessive Body Rolling

DIAGNOSIS

STEP 1. Check for broken or deteriorated 
stabilizer bar.

Q: Is the stabilizer bar in good condition?

YES : 

Go to Step 2.

NO : 

Replace it (Refer to 

P.33-17

), then go to 

Step 3.

STEP 2. Check the strut assembly for damage.

Q: Is the strut assembly in good condition?

YES : 

Go to Step 3.

NO : 

Replace it (Refer to 

P.33-10

), then go to 

Step 3.

STEP 3. Retest the system.

Q: Is the malfunction eliminated?

YES : 

The procedure is complete.

NO : 

Return to Step 1.

INSPECTION PROCEDURE 3: Poor Ride

DIAGNOSIS

STEP 1. Check for improper tire inflation 
pressure.
Refer to GROUP 31, On-vehicle Service − Tire Infla-

tion Pressure Check 

P.31-7

.

Q: Is the tire inflation correct?

YES : 

Go to Step 2.

NO : 

Adjust it, then go to Step 4.

STEP 2. Check for broken or deteriorated coil 
spring(s).

Q: Are the coil spring(s) broken or deteriorated?

YES : 

Replace the coil spring(s) (Refer to 

P.33-11

), then go to Step 4.

NO : 

Go to Step 3.

STEP 3. Check for strut assembly damage.

Q: Is the strut assembly damaged?

YES : 

Replace it (Refer to 

P.33-10

), then go to 

Step 4.

NO : 

Go to Step 4.

STEP 4. Retest the system.

Q: Is the malfunction eliminated?

YES : 

The procedure is complete.

NO : 

Return to Step 1.

INSPECTION PROCEDURE 4: Unequal Ride Height

DIAGNOSIS

STEP 1. Check for broken or deteriorated coil 
spring(s).

Q: Is the coil spring(s) broken or deteriorated?

YES : 

Replace it (Refer to 

P.33-11

), then go to 

Step 2.

NO : 

Go to Step 2.

STEP 2. Retest the system.

Q: Is the malfunction eliminated?

YES : 

The procedure is complete.

NO : 

Return to Step 1.

FRONT SUSPENSION DIAGNOSIS

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FRONT SUSPENSION

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INSPECTION PROCEDURE 5: Noise

DIAGNOSIS

STEP 1. Check for lack of lubrication.

Q: Is lubrication inadequate?

YES : 

Lubricate it, then go to Step 5.

NO : 

Go to Step 2.

STEP 2. Check the tightened parts for looseness 
as well as the bushings for wear.

Q: Are the tightened parts and bushings in good 

condition?
YES : 

Go to Step 3.

NO : 

Replace it (Refer to 

P.33-9

), then go to Step 

5.

STEP 3. Check for broken coil spring.

Q: Is the coil spring broken?

YES : 

Replace it (Refer to 

P.33-11

), then go to 

Step 5 .

NO : 

Go to Step 4.

STEP 4. Check for strut assembly damage.

Q: Is the strut assembly damaged?

YES : 

Replace it (Refer to 

P.33-10

), then go to 

Step 5 .

NO : 

Go to Step 5.

STEP 5. Retest the system.

Q: Is the malfunction eliminated?

YES : 

The procedure is complete.

NO : 

Return to Step 1.

SPECIAL TOOLS

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FRONT SUSPENSION

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SPECIAL TOOLS

M1332000601041

Tool

Tool number and name

Supersession

Application

MB991004
Wheel alignment gauge 
attachment

MB991004-01 or General 
service tool

Wheel alignment 
measurement

MB991832

a. MB991793
b. MB991795
c. MB991794
d. MB991829
e. MB991831
f. MB991830

Spring compressor set

a. Spring compressor
b. Attachment A
c. Upper plate
d. Arm bracket
e. Spacer
f. Fixture

General service tool

Front coil spring 
compression
NOTE: The coil spring can 
not be compressed by 
following conventional 
special tools.

.

•

MB991237
Spring compressor 
body

•

MB991238
Arm set

MB991680

a. MB991681
b. MB991682

Wrench set

a. Wrench
b. Socket

−

Strut assembly 
disassembly and 
reassembly

MB991006
Preload socket

MB990228-01

Lower arm ball joint 
breakaway torque check

MB990800
Ball joint dust cover 
installer

MB990800-01or General 
service tool

Lower arm ball joint dust 
cover installation

MB990326
Preload socket

General service tool

Ball joint turning torque 
check

MB991004

MB991832

a

b

c

d

e

f

MB991680

A

B

a

b

MB991006

MB990800

MB990326

ON-VEHICLE SERVICE

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FRONT SUSPENSION

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ON-VEHICLE SERVICE

FRONT WHEEL ALIGNMENT CHECK AND 
ADJUSTMENT

M1332012400397

CAUTION

After performing the front wheel alignment, perform a cali-
bration for the ASC-ECU to learn the steering wheel sensor 
neutral point. (Refer to GROUP 35C − On-vehicle Service − 

Steering Wheel Sensor Calibration 

P.35C-289

.)

1. Before the wheel alignment measurement, maintain the 

front suspension, the steering system, the wheel and tires in 
good condition.

2. Park the vehicle on a level surface, and position the front 

wheel in the straight-ahead position to measure the wheel 
alignment.

TOE-IN

Standard value: 0 ± 2 mm (0 ± 0.08 inch)

1. Loosen the jam nut with the tie-rod clip removed, and then 

perform the adjustment by turning the tie-rod left/right at the 
same degree in the opposite direction.
NOTE: The toe moves to the outside by turning the tie-rod 
left to the forward direction, and right to the reverse direc-
tion.

2. After adjustment, check that the steering angle is within the 

standard range using the turning radius gauge. (Refer to 
GROUP 37 − On-vehicle Service 

P.37-16

.)

CAMBER, CASTER AND KINGPIN INCLINATION

.

CAMBER 

Standard value: 
− 1° 00' ± 0° 30' (Left/right deviation within 0° 30’)

.

CASTER

Standard value: 

4° 25' ± 0° 30' (Left/right deviation within 0° 30’)
Kingpin inclination 13° 50’ ± 1° 30’

NOTE:  Camber and caster are preset at the factory and can-
not be adjusted.

AC705438 AC

Clip

Jam nut