1997 MITSUBISHI TRITON wheel

GENERAL ± How to Use This Manual00-3
MODEL INDICATIONS
The following abbreviations are used in this manual for classification of model types.
M/T: Indicates the manual transmission, or models equipped with the manual transmission.
A/T: Indicates the automatic transmission, or models equipped with the automatic transmission.
SOHC: Indicates an engine with the single overhead camshaft, or a model equipped with such
an engine.
MPI: Indicates the multi-point injection, or engines equipped with the multi-point injection.
DIESEL: Indicates a diesel engine, or models equipped with such an engine.
2WD: Indicates the rear wheel-drive vehicles.
4WD: Indicates the 4 wheel-drive vehicles.

GENERAL ± Precautions Before Service00-25
PRECAUTIONS BEFORE SERVICE00100050144
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
1. Items to follow when servicing SRS
(1) Be sure to read GROUP 52B ± Supplemental Restraint System (SRS).
For safe operations, please follow the directions and heed all warnings.
(2) Always use the designated special tools and test equipment.
(3) Wait at least 60 seconds after disconnecting the battery cable before doing any further work.
The SRS system is designed to retain enough voltage to deploy the air bag even after the battery
has been disconnected. Serious injury may result from unintended air bag deployment if work
is done on the SRS system immediately after the battery cable is disconnected.
(4) Never attempt to disassembly or repair the SRS components, (SRS diagnosis unit, air bag module
and clock spring). If faulty, replace it.
(5) Warning labels must be heeded when servicing or handling SRS components. Warning labels
are located in the following locations.

Hood

Sun visor

Glove box

SRS diagnosis unit

Steering wheel

Air bag module

Clock spring

Frame
(6) Store components removed from the SRS in a clean and dry place.
The air bag module should be stored on a flat surface and placed so that the pad surface is
facing upward.
Do not place anything on top of it.
(7) Be sure to deploy the air bag before disposing of the air bag module or disposing of a vehicle
equipped with an air bag. (Refer to GROUP 52B ± Air Bag Module Disposal Procedures.)
(8) Whenever you finish servicing the SRS, check the SRS warning lamp operation to make sure
that the system functions properly.
2. Observe the following when carrying out operations on places where SRS components are installed,
including operations not directly related to the SRS air bag.
(1) When removing or installing parts do not allow any impact or shock to the SRS components.
(2) SRS components should not be subjected to heat over 93C, so remove the SRS components
before drying or baking the vehicle after painting.
After re-installing them, check the SRS warning lamp operation to make sure that the system
functions properly.

MPI ± Troubleshooting13A-59
Item
No.Reference
page Inspection
procedure
No. Normal condition Inspection contents Inspection
item
22Crank angle
sensor
Engine: Cranking

Tachometer:
ConnectedCompare the engine
speed readings on
the tachometer and
the MUT-II.AccordCode No.
2213A-15

Engine: Idling

Idle position
switch: ONWhen engine
coolant temperature
is ±20C1,275 ± 1,475 r/min
When engine
coolant temperature
is 0C1,225 ± 1,425 r/min
When engine
coolant temperature
is 20C1,100 ± 1,300 r/min
When engine
coolant temperature
is 40C950 ± 1,150 r/min
When engine
coolant temperature
is 80C650 ± 850 r/min
25Barometric
p
ressure
Ignition switch: ONAt altitude of 0 m101 kPaCode No.
25
13A-18
ressure
sensorAt altitude of 600 m95 kPa
25
At altitude of 1,200 m88 kPa
At altitude of 1,800 m81 kPa
26Idle position
switchIgnition switch: ON
Check by operating
acceleratorpedal
Throttle valve:
Set to idle positionONProcedure
No. 2513A-40
accelerator pedal
repeatedlyThrottle valve:
Slightly openOFF*2
27Power
steering fluid
p
ressure
Engine: IdlingSteering wheel
stationaryOFFProcedure
No. 2813A-43
pressure
switchSteering wheel
turningON

MPI ± Troubleshooting13A-65
Terminal No.Normal condition Check condition (Engine condition) Check item
35Oxygen sensor heaterEngine: Idling after warming up0±3V
Engine r/min: 5,000r/min.System voltage
36Engine warning lampIgnition switch: OFF
ON0 ± 3V
9 ± 13V
(After several seconds have
elapsed)
37Power steering fluid
pressure switchEngine: Idling after
warming upWhen steering
wheel is stationarySystem voltage
When steering
wheel is turned0±3V
38Control relay
(Power supply)
Ignition switch: OFFSystem voltage
(Power su ly)
Ignition switch: ON0±3V
45A/C switchEngine: Idle speedTurn the A/C
switch OFF0±3V
Turn the A/C
switch ON (A/C
compressor is
operating)System voltage
51Ignition switch ± STEngine: Cranking8V or more
52Intake air temperature
sensorIgnition switch:
ONWhen intake air
temperature is
0
C3.2 ± 3.8V
When intake air
temperature is
20
C2.3 ± 2.9V
When intake air
temperature is
40
C1.5 ± 2.1V
When intake air
temperature is
80
C0.4 ± 1.0V
56Oxygen sensorEngine: Running at 2,500 r/min after
warmed up (Check using a digital type
voltmeter)0
0.8V
(Changes repeatedly)
60Backup power supplyIgnition switch: OFFSystem voltage
61Sensor impressed
voltageIgnition switch: ON4.5 ± 5.5V
62Ignition switch ± IGIgnition switch: ONSystem voltage

MANUAL TRANSMISSION ± 4WD Indicator-ECU22-16
Terminal No.Inspection itemInspection condition
1: Ignition switchInspection condition
2: Transfer lever positionTerminal voltage
1Free wheel engage
switch
ON2HSystem voltage
switch
4H*10 V
24WD detection
switch
ON2HSystem voltage
switch
4H, 4L0 V
3Ignition switch (IG1)OFF±0 V
ON±System voltage
5Free wheel differen-
tial indicator lamp
ON2HSystem voltage
tial indicator lam
4H*10 V
6HI/LOW detection
switchONShifting from 4H to 4L
or vice versaSystem voltage
2H, 4H, 4L0 V
7Free wheel clutch
changeover solenoid
ON4H, 4L0 V
changeover solenoid
valve2H*2System voltage
104WD Indicator lampON2H0 V
4H, 4LSystem voltage
NOTE
*1: When vehicle has been moved once.
*2: Shift the lever from 4H to 2H, and then turn the ignition switch to OFF and then back to ON.

AUTOMATIC TRANSMISSION ± On-vehicle Service23-19
CONVERTER STALL TEST 23100540138
In this test, the engine maximum speed when the
torque converter stalls with the shift lever in the
ªDº or ªRº range is measured to check operation
of the torque converter, starter and one-way clutch
and check holding performance of the transmission
clutch (including brake).
Caution
Do not stand in front or at rear of the vehicle
during this test.
(1) Check the transmission fluid level. The fluid
temperature should be at the level after normal
operation (70 ± 80
C). The engine coolant
temperature should also be at the level after
normal operation (80 ± 90
C).
(2) Apply chocks to the rear wheels (right and left).
(3) Mount an engine tachometer.
(4) Apply fully the parking and service brakes.(5) Start the engine.
(6) With the selector lever in the ªDº range, fully
depress the accelerator pedal and read off the
engine maximum speed.
Standard value:
2,100 ± 2,400 r/min <4G63>
2,300 ± 2,600 r/min <4D56>
NOTE
When doing so, do not keep the engine running
with throttle full open for more than 5 seconds.
If two or more stall tests are needed, place
the selector lever in the ªNº position and run
the engine at about 1,000 r/min to allow the
transmission fluid to cool before another stall
test.
(7) Place the selector lever in the ªRº range and
perform the test as above.
JUDGEMENT OF STALL TEST RESULTS
Stall speed in ªDº and ªRº range is equal to each other
but lower than the nominal value.(1) Engine output is low.
(2) Starter one-way clutch is faulty. (Faulty torque
converter is suspected if it is lower than nominal
by more than 600 r/min)
Stall speed in ªDº range is higher than nominal.(1) Overdrive clutch slipping
(2) Overdrive one-way clutch faulty
(3) Forward clutch slipping
(4) One-way clutch No. 2 faulty
(5) Low line pressure
Stall speed in ªRº range is higher than nominal.(1) Overdrive clutch slipping
(2) Overdrive one-way clutch faulty
(3) Direct clutch slipping
(4) Brake No. 3 slipping
(5) Low line pressure

FRONT AXLE ± General Information26-2
GENERAL INFORMATION26100010111
2WD
The front hub assembly which uses a double taper
roller bearing is mounted on the knuckle spindle.For vehicles with ABS, a rotor for detecting the
wheel speed is press-fitted into the front hub.
4WD
The front axle consists of the hub assembly, drive
shaft, inner shaft, front differential, freewheel clutch
assembly and actuator. The features are:

The wheel bearing uses a double taper roller
bearing. For vehicles with ABS, a rotor for
detecting the wheel speed is bolted to the brake
disc.

Drive shafts of almost identical length reduce
torque steer. In addition, a D.O.J.-B.J.-type
constant velocity ball joint has high power
transmission efficiency and reduces vibration
and noise.
A vacuum-type freewheel clutch has been
adopted in the freewheel mechanism. Its
solenoid valve and actuator switch powertrain
between 2WD and 4WD.

There are two types of differential gear. The
difference between them is gear ratio.
2WD
ItemSpecifications
Wheel bearingTypeDouble taper roller bearing
Inner bearing (O.D. x I.D.) mm65.1 x 34.9
Outer bearing (O.D. x I.D.) mm50.0 x 21.4
4WD

ItemSpecifications
Wheel bearingTypeDouble taper roller bearing
Inner bearing (O.D. x I.D.) mm73 x 45
Outer bearing (O.D. x I.D.) mm73 x 45
Drive shaftJoint typeOuter: B.J.
Inner: D.O.J.
Shaft length (joint to joint) mmRight: 318
Left: 291
Inner shaftO.D. x length mm31.5 x 304.2
Bearing (O.D. x I.D.) mm62 x 35

FRONT AXLE ± Service Specifications/Lubricants26-4
SERVICE SPECIFICATIONS26100030131
ItemStandard valueLimit
Front axle total backlash mm±11
Drive shaft axial play mm0.4 ± 0.7±
Solenoid valve resistance W36 ± 46±
Hub rotary sliding resistance N7 ± 26±
(Hub rotation starting torque) Nm0.5 ± 1.8±
Amount of movement of far the wheel bearing in an axial
direction mm0.05 or less±
Setting of D.O.J. boot length mm80 + 3±
Clutch gear play (bearing axial play) mm0.05 ± 0.30±
Drive gear backlash mm0.11 ± 0.16±
Differential gear backlash mm0 ± 0.076±
Drive pinion rotation torque NmWithout oil sealWhen replacing (with anti-rust agent)
0.3 ± 0.5±
When replacing or reusing (with gear oil
applied) 0.15 ± 0.25±
With oil sealWhen replacing (with anti-rust agent)
0.5 ± 0.7±
When replacing or reusing (with gear oil
applied) 0.3 ± 0.4±
Drive gear runout mm±0.05
Differential gear backlash mm±0.2
LUBRICANTS26100040141
ItemsSpecified lubricantsQuantity
Front differential gear oilHypoid gear oil API classification
GL-5 or higher SAE viscosity No. 90,
80W0.9

D.O.J. boot greaseRepair kit grease100 g