TROUBLESHOOTING
WHEEL AND TYRE31-3
TROUBLESHOOTING
DIAGNOSISM1311000700385
Symptom Probable cause Remedy Reference page
Rapid wear
at shouldersUnder-inflation
or lack of
rotationAdjust the tyre
pressure.For tyre inflation
pressure, refer to
the label on the
driver's side centre
pillar.
Rapid wear
at centreOver-inflation
or lack of
rotation
Cracked
treadsUnder-inflation Adjust the tyre
pressure.For tyre inflation
pressure, refer to
the label on the
driver's side centre
pillar.
Wear on one
sideExcessive
camberCheck the camber.
Refer to GROUP
33, On-vehicle
service − Front
wheel alignment
check and
adjustment P.33-5.
Refer to GROUP
34, On-vehicle
service − Rear
wheel alignment
check and
adjustment P.34-5. Feathered
edgeIncorrect toe-in Adjust the toe-in.
Bald spots Unbalanced
wheelBalance the wheels.
P.31-4
ACX00923ABACX00924
AB
ACX00925ABACX00926AB
ACX00927AB
ACX00928
ABACX00929
AB
ACX00930ABACX00931
AB
ACX00932ABACX00933AB
TROUBLESHOOTING
WHEEL AND TYRE31-4
WHEEL BALANCE ACCURACYM1311001700247
PURPOSE
This section contains tips and procedures for
achieving accurate wheel balance. Steering wheel
vibration and/or body shake can result if any of these
procedures are not carefully observed.
1. Wheels and tyres must be properly mounted on a
balancer in order to achieve correct balance.
Centring the wheel on the shaft of the balancer is
essential for proper mounting.
2. Off-the-car wheel balancers must be calibrated
periodically to ensure good balancing results. An
inaccurately calibrated balancer could cause
unnecessary replacement of tyres, shocks,
suspension components, or steering components.
Check your balancer's calibration approximately
every 100 balances. Your wheel balancer's
instruction manual should include calibration
procedures. If the calibration procedures specifically
for your balancer are missing, use the generic steps
in this section for zero calibration, static balance, and
dynamic balance checks. The wheel balancer
calibration checks are also described in the
flowchart. (Refer to P.31-6).
PROCEDURE
1. Confirm that the balancer's cone and the wheel
mounting cone are undamaged and free of dirt
and rust.
2. On this vehicle, the wheel's centre hole on the
hub side has a chamfered edge. Use a
back-mounting cone on your wheel balancer to
centre the wheel on the balancer shaft.
3. Install a wheel mounting cone. The appropriate
size cone for this vehicle is 67.0 mm.
4. Before balancing the wheel, remove any wheel
weights from both sides. Also check both sides for
any damage.
5. When installing wheel weights, hammer them at a
straight (not diagonal) angle. Scalloped
wearLack of rotation of tyres or worn
or out-of-alignment suspensionRotate the tyres, and
check the front or
rear suspension
alignments.
Refer to GROUP
33, On-vehicle
service − Front
wheel alignment
check and
adjustment P.33-5.
Refer to GROUP
34, On-vehicle
service − Rear
wheel alignment
check and
adjustment P.34-5. Symptom Probable cause Remedy Reference page
ACX00934
CROSSMEMBER
POWER PLANT MOUNT32-8
INSTALLATION SERVICE POINTS
>>A<< ENGINE FRONT ROLL STOPPER
BRACKET INSTALLATION
Install the engine front roll stopper bracket so that its
hole points towards the front side of the vehicle.
>>B<< ENGINE MOUNTING CUSHION
STOPPER INSTALLATION <4G6>
Install the engine mounting cushion stopper as
shown.
CROSSMEMBER
REMOVAL AND INSTALLATIONM1321003200368
CAUTION
•Before removing the steering wheel and air bag module assembly, always refer to GROUP 52B -
Service Precautions P.52B-5, Air bag Module and Clock Spring P.52B-210. Also, set the front
wheels so that they are facing straight forward, and remove the ignition key. If you fail to do this,
the SRS clock spring will be damaged, causing the SRS air bag to be inoperative and serious
injury.
•*
1: Indicates parts which should be initially tightened, and then fully tightened after placing the
vehicle horizontally and loading the full weight of the engine on the vehicle body.
•*
2: Indicates parts which should be temporarily tightened, and then fully tightened with the vehicle
on the earth in the unladen condition.
AC005918Front of vehicleHoleACAC304315ABFront of vehicle
HoleEngine mounting
cushion stopper
Pre-removal Operation
•Centermember Removal (Refer to P.32-7).
•Front Exhaust Pipe Removal (Refer to GROUP 15,
Exhaust Pipe and Main Muffler P.15-11).
•Steering Wheel Air Bag Module Assembly Removal
(Refer to GROUP 37, Steering Wheel P.37-17).
•Power Steering Fluid Draining (Refer to GROUP 37,
On-vehicle Service P.37-13).Post-installation Operation
•Front Exhaust Pipe Installation (Refer to GROUP 15,
Exhaust Pipe and Main Muffler P.15-11).
•Centermember Installation (Refer to P.32-7).
•Clock Spring Centring (Refer to GROUP 52B, Air Bag
Modules and Clock Spring P.52B-210).
•Steering Wheel Air Bag Module Assembly Installation
(Refer to GROUP 37, Steering Wheel P.37-17).
•Power Steering Fluid Supplying (Refer to GROUP 37,
On-vehicle Service P.37-13).
•Power Steering Fluid Line Bleeding (Refer to GROUP 37,
On-vehicle Service P.37-13).
•Press the dust cover with a finger to check whether the
dust cover cracked or damaged.
•Checking Steering Wheel Position with Wheels Straight
Ahead.
•Front Wheel Alignment Check and Adjustment (Refer to
GROUP 33, On-vehicle Service P.33-5).
33-1
GROUP 33
FRONT
SUSPENSION
CONTENTS
GENERAL INFORMATION . . . . . . . .33-2
SERVICE SPECIFICATIONS . . . . . . .33-3
LUBRICANT . . . . . . . . . . . . . . . . . . . .33-3
SPECIAL TOOLS . . . . . . . . . . . . . . . .33-4
ON-VEHICLE SERVICE . . . . . . . . . . .33-5
FRONT WHEEL ALIGNMENT CHECK
AND ADJUSTMENT . . . . . . . . . . . . . . . . . . 33-5
LOWER ARM BALL JOINT AXIAL PLAY
CHECK . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33-6
LOWER ARM BALL JOINT COVER
CHECK . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33-6
STRUT ASSEMBLY . . . . . . . . . . . . . .33-7
REMOVAL AND INSTALLATION . . . . . . . . 33-7
INSPECTION . . . . . . . . . . . . . . . . . . . . . . . . 33-7
DISASSEMBLY AND REASSEMBLY . . . . . 33-8
INSPECTION . . . . . . . . . . . . . . . . . . . . . . . . 33-10
LOWER ARM . . . . . . . . . . . . . . . . . . .33-11
REMOVAL AND INSTALLATION . . . . . . . . 33-11
INSPECTION . . . . . . . . . . . . . . . . . . . . . . . . 33-12
LOWER ARM BALL JOINT COVER
REPLACEMENT . . . . . . . . . . . . . . . . . . . . . 33-12
LOWER ARM BUSHING (REAR)
REPLACEMENT . . . . . . . . . . . . . . . . . . . . . 33-13
STABILIZER BAR* . . . . . . . . . . . . . . .33-14
REMOVAL AND INSTALLATION . . . . . . . . 33-14
INSPECTION . . . . . . . . . . . . . . . . . . . . . . . . 33-17
WARNINGS REGARDING SERVICING OF SUPPLEMENTAL RESTRAINT SYSTEM (SRS) EQUIPPED VEHICLES
WARNING
•Improper service or maintenance of any component of the SRS, or any SRS-related component, can lead to
personal injury or death to service personnel (from inadvertent firing of the air bag) or to the driver and
paassenger (from rendering the SRS inoperative).
•Service or maintenance of any SRS component or SRS-related component must be performed only at an
authorized MITSUBISHI dealer.
•MITSUBISHI dealer personnel must thoroughly review this manual, and especially its GROUP 52B - Supplemental
Restraint System (SRS) before beginning any service or maintenance of any component of the SRS or any
SRS-related component.
NOTE
The SRS includes the following components: SRS air bag control unit, SRS warning light, front impact sensors, air bag module,
clock spring, and interconnecting wiring. Other SRS-related components (that may have to be removed/installed in connection
with SRS service or maintenance) are indicated in the table of contents by an asterisk (*).
SPECIAL TOOLS
FRONT SUSPENSION33-4
SPECIAL TOOLS
M1332000600297
Tool Number Name Use
MB991004 Wheel alignment gauge
attachmentWheel alignment
measurement
A: MB991237
B: MB991238A: Spring compressor
body
B: Arm setCoil spring compression
MB991680
A: MB991681
B: MB991682Wrench set
A: Wrench
B: SocketStrut assembly
disassembly and
reassembly
MB991006 Preload socket Lower arm ball joint
rotation starting torque
check
MB990800 Ball joint remover and
installerLower arm ball joint cover
installation
MB991004
MB991237
A
B
MB991680
A
B
MB991006
MB990800
ON-VEHICLE SERVICE
FRONT SUSPENSION33-5
ON-VEHICLE SERVICE
FRONT WHEEL ALIGNMENT CHECK AND
ADJUSTMENT
M1331000900682
Measure wheel alignment with alignment equipment
on a level surface. The front suspension, steering
system, wheels, and tyres should be serviced to
normal condition before measuring wheel alignment.
TOE-IN
Standard value:
at the centre of tyre tread: 1 ± 2 mm
Toe angle (per wheel): 0°03' ± 06'
1. Adjust the toe-in by undoing the clip and lock nut,
and turning the left and right tie rod turnbuckles by
the same amount (in opposite directions). MB990883 Rear suspension bushing
arborLower arm bushing (rear)
removal and press-fitting
MB990972 Torsion bar bushing
remover base
MB990887 Ring
MB990890 Rear suspension bushing
base
MB991897 Ball joint remover Knuckle and tie rod end
ball joint disconnection
NOTE: Steering linkage
puller (MB990635 or
MB991113) is also
available to disconnect
knuckle and tie rod end
ball joint. Tool Number Name Use
MB990883
MB990971
MB990890
AC106827
AC006074AD
Lock nut
Clip
ON-VEHICLE SERVICE
FRONT SUSPENSION33-6
NOTE: The toe will move out as the left
turnbuckle is turned toward the front of the vehicle
and the right turnbuckle is turned toward the rear
of the vehicle.
2. Install the clip and tighten the lock nut to the
specified torque.
Tightening torque: 40 ± 5 N⋅m
3. Confirm that the toe-in is at the standard value.
4. Use a turning radius gauge to check that the
steering angle is at the standard value.
STEERING ANGLE
Standard value:
TOE-OUT ANGLE ON TURNS
To check the steering linkage, especially after the
vehicle has been involved in an accident or if an
accident is presumed, it is advisable to check the
toe-out angle on turns in addition to the wheel
alignment.
Conduct this test on the left turn as well as on the
right turn.
Standard value:
CAMBER, CASTER AND KINGPIN
INCLINATION
Standard value:NOTE: *: difference between right and left wheels
must be less than 30'
NOTE: Camber and caster are preset at the factory
and cannot be adjusted.
CAUTION
Never subject the wheel bearings to the vehicle
load when the driveshaft nuts are loosened.
NOTE:
For vehicles with aluminium wheels, attach the
camber/caster/kingpin gauge to the driveshaft by
using special tool wheel alignment gauge attachment
(MB991004). Tighten the special tool to the same
torque 245
± 29 N⋅m as the driveshaft nut.
LOWER ARM BALL JOINT AXIAL PLAY
CHECK
M1332011300074
1. Raise the vehicle.
2. Remove the stabilizer link from the lower arm.
3. Move the lower arm up and down with your hands
to check for an excessive play in the axial
direction of the ball joint. If there is an excessive
play, replace the lower arm assembly.
LOWER ARM BALL JOINT COVER
CHECK
M1332008600321
1. Press the lower arm ball joint cover with your
finger to check that there are no cracks or
damage in the lower arm ball joint cover.
2. If the lower arm ball joint cover is cracked or
damaged, replace the lower arm assembly.
NOTE: If the lower arm ball joint cover is cracked
or damaged, it is possible that there may also be
damage to the ball joint. Inner
wheelsComfort 39°30' ± 1°30'
Sport (LH drive
vehicles)33°40' +1°00'/-2°00'
Sport (RH drive
vehicles)37°00' +1°00'/-2°00'
Outer
wheels
(reference)Comfort 32°30'
Sport (LH drive
vehicles)28°46'
Sport (RH drive
vehicles)30°00'
Item Specification
Toe-out angle on turns (inner
wheel when outer wheel at 20°)21°42' ± 1°30'
Item Comfort Sport
Camber 0°05' ± 30'* -0°05' ± 30'*
Caster 2°45' ± 30'* 2°55' ± 30'*
Kingpin
inclination12°30' ± 1°30' 12°40' ± 1°30'
AC001079
MB991004
AB
STRUT ASSEMBLY
FRONT SUSPENSION33-7
STRUT ASSEMBLY
REMOVAL AND INSTALLATIONM1332001100325
INSPECTIONM1332001200247
•Check for oil leaks from the strut assembly.
•Check the strut assembly for damage or
deformation.
Post-installation Operation
•Front Wheel Alignment Adjustment (Refer to P.33-5.)
AC304153
44 ± 5 N·m
1
2
3 4
N
AB
167 ± 9 N·m
5
Removal steps
1. Front ABS sensor harness bracket
2. Brake hose bracket
3. Knuckle connection4. Strut nut (self-locking nut)
5. Strut assemblyRemoval steps (Continued)