1998 MITSUBISHI LANCER EVOLUTION IV steering

ENGINE ELECTRICAL – Charging System16-2
CHARGING SYSTEM
ALTERNATOR
REMOVAL AND INSTALLATION
Pre-removal Operation
(1) Under Cover Removal
(2) Engine Mount Removal
(3) Strut Tower Bar RemovalPost-installation Operation
(1) Strut Tower Bar Installation
(2) Engine Mount Installation
(3) Under Cover Installation
(4) Drive Belt Tension Adjustment
(Refer to GROUP 11 – On-vehicle Service.)
Unit: Nm {kgf
m}
44 {4.5}
7 3
2
6
15 4
24 {2.4} 22 {2.2} 9 {0.9}12 – 15
{1.2 – 1.5}10 – 13
{1.0 – 1.3}
12 {1.2}
Removal steps

A1. Drive belt (Power steering, A/C)

B2. Delivery pipe, injector and pressure
regulator assembly
3. Oil level gauge guide4. Pressure hose connection

C5. Alternator
6. Water pump pulley
7. Alternator brace

ENGINE ELECTRICAL – Charging System16-3
REMOVAL SERVICE POINTS

APOWER STEERING, A/C COMPRESSOR, AND
ALTERNATOR DRIVE BELT REMOVAL
(1) Align the hole in the auto tensioner bracket with that
in the arm and insert a screwdriver into the holes.
(2) Remove the drive belt.

BDELIVERY PIPE, INJECTOR, AND PRESSURE
REGULATOR ASSEMBLY REMOVAL
After the mounting points have been loosened, slightly move
the corresponding part to allow for a space for removal of
the alternator.

CALTERNATOR REMOVAL
Push the engine all the way up with a garage jack and remove
the alternator upward the engine compartment.
Phillips
screwdriver
Hole in arm
Auto tensioner
Hole in bracket

ENGINE ELECTRICAL – Ignition System16-5
CAMSHAFT POSITION SENSOR AND CRANK ANGLE SENSOR
REMOVAL AND INSTALLATION
Pre-removal and Post-installation Operation
Timing Belt Removal and Installation
(Refer to GROUP 11.)
Unit: Nm {kgf
m}
49 {5.0}
5
9 {0.9}9 {0.9}
9 {0.9} 39 {4.0} 3 {0.3}
2
3
41
Removal steps
1. Camshaft position sensor
2. Center cover

A3. Power steering oil pump4. Power steering oil pump bracket
5. Crank angle sensor
REMOVAL SERVICE POINT

APOWER STEERING OIL PUMP REMOVAL
Remove the power steering oil pump with hose from the power
steering oil pump bracket.
NOTE
String up the oil pump which has been removed onto a location
that does not hamper removal and installation of the power
steering oil pump bracket.

MANUAL TRANSMISSION – Lubricant / Special Tools22A-2
LUBRICANT
ItemSpecified lubricantQuantity dm3 (
)
Transmission oilMITSUBISHI genuine “Dia-Queen” multi gear oil <75W/85W>2.8 (2.8)
Transfer oilMITSUBISHI genuine “Dia-Queen Super” hypoid gear oil (GL-5)0.62 (0.62)
SPECIAL TOOLS
ToolNumberNameUse
MB990635 or
MB991113Steering linkage
pullerTie rod end and lower arm disconnection
Recommended
tool MZ203826
by Anzen
Jidosha or
MZ203827 by
BanzaiEngine lifterSupporting the engine assembly during
removal and installation of the transmission
MB991453Engine hanger
MB991612AdapterRemoving output shaft
MB990211Slide hammer
MB991193PlugPreventing oil flowing out from and foreign
matter entry into transfer.

FRONT AXLE – Service Specifications / Special Tools26-2
SERVICE SPECIFICATIONS
ItemsLimit
Hub axial play mm0.05
Hub rotation starting torque Nm {kgf
m}1.8 {1.8}
SPECIAL TOOLS
ToolNumberNameUse
MB990635 or
MB991113Steering linkage
pullerBall joint disconnection
MB990767End holderFixing of hub
MB991354Puller bodyRemoval of drive shaft
AB
MB990241
A: MB990242
B: MB990244Axle shaft puller
A: Puller shaft
B: Puller bar
A: MB991017
B: MB990998
C: MB991000A, B: Front hub
remover &
installer
C: Spacer
Temporary fixing of unit bearing

Measurement of hub rotation starting
torque

Measurement of hub axial play
Use MB991000 (component of
MB990998) for the spacer.
MB990326Preload socketMeasurement of hub rotation starting torque

REAR AXLE – Special Tools27-4
Tool UseName Number
AB
MB990241
A: MB990242
B: MB990244Rear axle shaft
puller
A: Puller shaft
B: Puller bar
Removal of drive shaft

Removal of rear hub assembly
MB991354Puller body
A: MB991017
B: MB990998
C: MB991000A, B: Front hub
remover &
installer
C: Spacer
Temporary fixing of unit bearing

Measurement of wheel bearing rotation
starting torque

Measurement of wheel bearing axial play
Use MB991000 (component
of MB990998) for the spacer.
MB990326Preload socket
Measurement of wheel bearing rotation
starting torque

Measurement of drive pinion preload
MB991406,
MB990635, or
MB991113Steering linkage
puller
Disconnection of ball joint

Removal of hub bolt
MB991460PlugPrevention of differential oil from being dis-
charged and entry of foreign matter tial>
MB990988Side gear holding
tool setMeasurement of clutch plate preload without AYC>
MB990850End yoke holderRemoval and installation of companion flange

REAR AXLE – Special Tools / Troubleshooting 27-5
MB990988NumberNameO.D. mm
1MB990551Box–
2MB990989Base–
3(MB990990)Tool A25
(MB990991)Tool B28
(MB990992)Tool C31
MB990925
Brass bar
Bar (one-touch type)Toolbox
Installer adapter
Tool number (MB990925)O.D. mmTool number (MB990925)O.D. mm
AMB99092639.0AMB99093363.5
MB99092745.0MB99093467.5
MB99092849.5MB99093571.5
MB99092951.0MB99093675.5
MB99093054.0MB99093779.0
MB99093157.0BMB990938–
MB99093261.0CMB990939–
TROUBLESHOOTING
1. BASIC TROUBLESHOOTING CONDITIONS
Before starting the troubleshooting procedure, make sure that the following items have been checked
okay.

The correct steering wheel has been properly installed in the neutral position of the steering column
shaft.

Tire and wheel sizes are correct with correct specifications. Inflation pressure, balance, and wear
conditions are okay.

Wheel alignment is correct.

The engine, suspension, and other parts have not been remodeled so as to affect the AYC system.
2. DIAGNOSIS FUNCTION
READING THE DIAGNOSIS CODE
Read the diagnosis code using AYC warning lamp.

REAR AXLE – Troubleshooting 27-9
Code No. 25: Wrong-diameter tireProbable cause
This code is output if the speed of any one of the four wheels exceeds a specified
level with respect to the average of the four wheel speed sensor outputs when the
steering wheel is in the straight-ahead position and the vehicle speed exceeds 20
km/h. At this time, the warning lamp does not light up.
Defective harness or connector

Defective AYC-ECU

Defective ABS-ECU

OK
Replace ABS-ECU.
NG
Check harness between AYC-ECU
and ABS-ECU.NG
Repair
NG
Replace AYC-ECU.
OK
Check the trouble symptom.
NG
Check the following connectors:
B-24, B-95NG
Repair
OK
Check the trouble symptom.
NO
Measure at B-95 AYC-ECU connector.

Disconnect the connector and
measure at the harness side.

Ignition switch: OK

Turn tire at 1/2 to 1 revolution/sec.

Voltage across 6/7/8/9 and body
ground.
OK:42 mV or more (when mea-
sured with a circuit tester)
120 mV-P or more (when
measured with an oscillo-
scope)OKCheck the following connector:
B-95
YES
Is ABS diagnosis code No. 15 output?YESTroubleshooting
Are correct tires mounted on all four
wheels?NO
Repair
NG
Repair

NG
Check and repair the harness between
speed sensor and AYC-ECU.
OK
Check the trouble symptom.
OK
Check the following connectors:
B-95, B-52, B-17, A-26, A-50, D-04,
D-14, D-19NG
Repair
OK
Check wheel bearing.NG
Replace
NG
Replace AYC-ECU.
OK
Check the trouble symptom.
OK
Check the following connector:
B-95NG
Repair
OK
Check speed sensor output voltage.
(Refer to p. 27-31.)NGCheck speed sensor and rotor.
YES
Check speed sensor for installation.NG
Repair
Are correct tires mounted on all four
wheels?NO
Repair
NG
Replace