axle SSANGYONG MUSSO 2003 User Guide

SUSPENSION DIAGNOSIS 2A-7
SELF-DIAGNOSIS ECS-ECU indicates ECS circuit defectives to the driver by flickering ECS indicator lamp in the meter cluster 0.5 second of interval if there are defectives.
Code
Body verticalacceleration
sensor
Defects
When sensor outputvoltage is less than
0.5-4.5V, more than
4.5V.
Judging Conditions01
0.9 - 1.1sec.Set TimeSensor Voltage
2.0 ± 0.1V
3.0 ± 0.1V
Release Conditions
0.9 - 1.1sec.
Set Time
Body lateral
acceleration sensor When sensor output
voltage is less than
0.55±0.15V, more than
4.45±0.1V.
02
0.9 - 1.1sec.Sensor Voltage
2.0 ± 0.1V
3.0 ± 0.1V 0.9 - 1.1sec.
Stop anti-
bounce ride
control
Remedy
Stop anti-roll control
Axle vertical
acceleration
sensor (wheel G sensor) When sensor output
voltage is less than
0.5-4.5V, more than
4.5V.
03
0.9 - 1.1sec.Sensor Voltage
2.0 ± 0.1V
3.0 ± 0.1V 0.9 - 1.1sec.
Stop ride
control
Front actuator Check step motor
power supply detecting
circuit for open and
short.
check for relative connectors.
04
0.4 - 0.6sec.IGN+ SW.
OFF
ON
Stop control
after returning to the previ-
ous mode
Rear actuator When defective detect- ing circuit has detected
defectives during
output OFF.
05
0.4 - 0.6sec.IGN+ SW.
OFF
ON
Stop control
after returning
to the previous
mode
ECU When ECU does not
work normally.
06
0.4 - 0.6sec.Reset
Stop control
1. Turn the ignition switch ON and if ECS system is normal, ECS indicator lamp will turn on for 3 seconds and then go off. However if defective, ECS indicator lamp will flicker in the interval of 0.5 second continuously.
2. Identify fault code with Scanner.

WHEEL ALIGNMENT 2B-5
VIBRATION DIAGNOSIS Wheel imbalance causes most highway speed vibration problems. A vibration can remain after dynamicbalancing because:
A tire is out of round.
A rim is out of round.
A tire stiffness variation exists.
Measuring tire and wheel free runout will uncover only part of the problem, All three causes, known as loadedradial runout, must be checked using method of substituting known good tire and wheel assemblies on the problem vehicle. Preliminary Checks Prior to performing any work, always road test the car and perform a careful visual inspection for:

Obvious tire and wheel runout.
Obvious drive axle runout.
Improper tire inflation.
Incorrect trim height.
Bent or damaged wheels.
Debris build-up on the tire or the wheel.
Irregular or excessive tire wear.
Improper tire bead seating on the rim,
Imperfections in the tires, including: tread deformations, separations, or bulges from impactdamage. Slight sidewall indentations are normal and
will not affect ride quality.
Tire Balancing Balance is the easiest procedure to perform and should be done first if the vibration occurs at high speeds. Do an off-vehicle, two-plane dynamic balance first to correct
any imbalance in the tire and wheel assembly. An on-vehicle finish balance will correct any brake drum,
rotor, or wheel cover imbalance, If balancing does not correct the high-speed vibration, or if the vibration occurs at low speeds, runout is the probable cause.

SECTION 2C
FRONT SUSPENSION
TABLE OF CONTENTSSPECIFICATIONS
GENERAL SPECIFICATIONS
Type
Spring Type
Torsion Bar Shock Absorber
Stabilizer Type
Double Wishbone
Torsion Bar Spring 1,040 mm
24.5 mm
Cylindrical Reciprocation Type
Torsion Bar Spring
Specifications . . . . . . . . . . . . . . . . . . . . . . . . 2C-1General Specifications . . . . . . . . . . . . . . . . . . 2C-1
Fastener Tightening Specifications . . . . . . . . . 2C-2
Component Locator . . . . . . . . . . . . . . . . . . . 2C-3
Front Suspension . . . . . . . . . . . . . . . . . . . . . . 2C-3
Maintenance and Repair . . . . . . . . . . . . . . . 2C-4
On-Vehicle Service . . . . . . . . . . . . . . . . . . . . . 2C-4
Front Stabilizer Bar . . . . . . . . . . . . . . . . . . . . . 2C-4
Application Description
Torsion Bar . . . . . . . . . . . . . . . . . . . . . . . . . . . 2C-6
Front Lower and Upper Arm . . . . . . . . . . . . . . 2C-8
Front Shock Absorber . . . . . . . . . . . . . . . . .
2C-10
Axle Vertical Acceleration Sensor (Wheel G Sensor) . . . . . . . . . . . . . . . . . . . 2C-12
Vertical and Lateral Sensor . . . . . . . . . . . . . . 2C-13
ECS (ECU) . . . . . . . . . . . . . . . . . . . . . . . . . . 2C-14
Length Outer Diameter(
)

2C-12 FRONT SUSPENSION
1 Axle Vertical Acceleration Sensor (wheel Gsensor)
Removal & Installation Procedure
1. Disconnect extension wiring connector (2) from the axle vertical acceleration sensor. Notice Installation of wiring connector should be as shown in the right drawing.
2. Unscrew bolts (3) and remove the axle vertical acceleration sensor (1). Notice When installing the sensor to the bracket, the sensor wiring should be upward.
3. Installation should follow the removal procedure in the reverse order. 1 Actuator Connector
2 Axle Vertical Acceleration Sensor Connector
3 Front Hose Mounting Bracket
4 Frame Side Member
AXLE VERTICAL ACCELERATION SENSOR (WHEEL G SENSOR)2 Extension Wiring
3 Bolt (M6)
............................................. 20 - 30Nm

2D-2 REAR SUSPENSIONDIAGNOSIS
NOISE (DURING STRAIGHT DRIVING)
Check
Lack of Oil
Low Viscosity of Oil Insufficient Oil Excessive Backlash of Ring Gear
Worn or Damaged Tooth of Ring and Pinion GearWorn or Damaged Drive Pinion BearingWorn Spline of Side Bearing and Side Gear Bent Axle Housing Bent Differential CaseWorn Pinion ShaftIncorrect Drive Pinion PreloadIncorrect Contact of Ring Gear and Pinion Action
Replenish ReplaceReplace Adjust
ReplaceReplace Replace ReplaceReplaceReplace Adjust
Retightening
NOISE (DURING TURNING)
Check
Worn or Damaged Tooth of Pinion or Side Gear Worn Pinion ShaftExcessive Backlash of Pinion Gear and Side Gear Excessive End-play of Rear Axle Shaft Incorrect Contact of Side Gear and Differential CaseAxle Housing CrackBent or Poor Installation of Drive Pinion Oil Seal
Damaged or Torn Drive Pinion Oil Seal Loosened Bearing Collar Worn or Damaged Universal JointWorn of Damaged Axle Shaft Bearing Action
ReplaceReplaceReplace Adjust
ReplaceReplaceReplaceReplace Replace ReplaceReplace
OIL LEAKAGE
Check
Excessive Oil Faulty Seal of Carrier Contact Surface Axle Housing Crack Worn or Damaged Oil Seal Action
Adjust
Repair
ReplaceReplace

2D-6 REAR SUSPENSION Removal & Installation Procedure
Stabilizer bar
1. Remove the upper nut of the connecting link.
Installation Notice
2. Remove the stabilizer bar cap fixing bolts (arrow) andremove the stabilizer bar. Installation Notice
Tightening Torque 16 - 22 Nm
Distance Between the Nutend and the Screw end 10 - 13 mm
Tightening Torque 30 - 45 Nm
Lateral Rod
1. Remove the lateral rod fixing nut from the frame.
Notice Completely press the coil springs. Installation Notice
2. Remove the lateral rod fixing nut from the rear axle and remove the lateral rod. Installation Notice
Tightening Torque 150 - 180 Nm
Tightening Torque 150 - 180 Nm

REAR SUSPENSION 2D-7
Shock Absorber.
1. Remove the lower mounting nut.
Installation Notice
2. Remove the upper mounting nut and remove the shock absorber. Installation Notice
Tightening Torque 50 - 65 Nm
Upper Arm
1. Remove the upper arm fixing nut from the frame.
Installation Notice
2. Remove the upper arm fixing nut from the rear axle and remove the upper arm. Installation Notice
Tightening Torque 150 - 180 Nm
Tightening Torque 150 - 180 Nm
Lower arm
1. Remove the parking brake cable bracket.
Tightening Torque 30 - 45 Nm
Distance between the nut
end and the screw end 6 - 9 mm

2D-8 REAR SUSPENSION
2. Remove the lower arm fixing nut from the frame.Installation Notice
3. Remove the lower arm fixing nut from the rear axle andremove the lower arm. Installation Notice
Tightening Torque 150 - 180 Nm
Tightening Torque 150 - 180 Nm

M/T M/TA/T (MB)M/TA/T (BTRA) M/T A/T (BTRA)M/TA/T (MB)M/T A/T (MB) A/T (BTRA)M/TA/T (MB)A/T (BTRA)
SECTION 3A
FRONT DRIVE AXLE
TABLE OF CONTENTSSPECIFICATIONS
GENERAL SPECIFICATIONS
Specifications . . . . . . . . . . . . . . . . . . . . . . . .
3A-1
General Specifications . . . . . . . . . . . . . . . . . . 3A-1
Fastener Tightening Specifications . . . . . . . . . 3A-2
Component Locator . . . . . . . . . . . . . . . . . . . 3A-3
Front Axle . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3A-3
Auto-Locking Hub . . . . . . . . . . . . . . . . . . . . . . 3A-4
Vacuum Circuit . . . . . . . . . . . . . . . . . . . . . . . . 3A-5Maintenance and Repair . . . . . . . . . . . . . . .
3A-6
On-Vehicle Service . . . . . . . . . . . . . . . . . . . . . 3A-6
Vacuum Line . . . . . . . . . . . . . . . . . . . . . . . . . . 3A-6
Steering Knuckle and Drive Shaft . . . . . . . . . . 3A-8
Front Axle . . . . . . . . . . . . . . . . . . . . . . . . . . . 3A-14
Unit Repair . . . . . . . . . . . . . . . . . . . . . . . . . 3A-16
Axle Housing . . . . . . . . . . . . . . . . . . . . . . . . . 3A-16
Application
Drive Shaft Type
Axle Housing Type
Differential TypeDifferential Gear
CV Joint
Build - up
Conventional
Hypoid Gear 4.56 4.56 3.734.565.384.27 4.89 4.894.554.554.55 5.86 3.733.734.89
1.4 L
SAE 80W/90, API GL - 5
Description
661NA 662NA 661LA662LA E20 E23 E32
Reduction Ratio Oil Capacity Oil Specification

3A-2 FRONT DRIVE AXLEFASTENER TIGHTENING SPECIFICATIONS
Steering Knuckle and Drive Shaft
Application
Drive Shaft to Front Axle Inner Shaft Wheel Speed Sensor Drive Shaft Cover Bolt
Locking Hub Washer ScrewHub Flange BoltHub Nut N
m
25 - 35
85 - 105 50 - 60 2 - 4
70 - 90
15