ISUZU AXIOM 2002 Service Repair Manual

INTELLIGENT SUSPENSION3F±35
Removal
1. Disconnect the battery ground cable.
2. Disconnect the connector from the harness and
remove the connector from the bracket.
3. Remove the clip.
View B
450RY00005
Legend
(1) Screw
(2) Actuator
(3) Nut
(4) Bracket
(5) Nut
(6) Washer
(7) Shock Absorber
1. Remove 2 screws.
2. Remove the actuator.
3. Remove the nut (3).
4. Disconnect bracket.
5. Remove the nut (5).
6. Disconnect the washer.
7. Remove the shock absorber.
Refer to
Shock Absorber in this section.
Inspection and Repair
Refer to shock Abosorber in this section.
Installation
1. Install the shock absorber.
Refer to
Shock Absorber in this section.
2. Install the washer and nut (5), then tighten it to the
specified torque.
Torque: 15 N´m (11 lb ft)
3. Install the bracket and nut (3), then tighten it to the
specified torque.
Torque: 39 N´m (29 lb ft)
NOTE: Fix the lower nut with wrench not to turn and
tighten upper nut.
4. Fit the top of the shock absorber rod in the connection
part of the actuator.
NOTE:
The mating section is width fitting across flats.
If these normally fit, the distance between the
actuator lower face and the bracket upper face is
about 1 mm.
5. Install 2 screws then tighten it to the specified torque.
3 N´m (26 lb in)
6. Connect the connector to the harness and insert the
connector to the bracket.
7. Connect the actuator harness with the clip.
8. Connect the battery ground cable.

3F±36INTELLIGENT SUSPENSION
Rear Shock Absorber
Rear Shock Absorber and Associated Parts
LH
461R100003
Legend
(1) Connector
(2) Clip
(3) Rear Shock Absorber
(4) Bracket
(5) Bolt(6) G-Sensor
(7) Front
(8) Upper
(9) Right
(10) Connector
(11) Gusset

INTELLIGENT SUSPENSION3F±37
Removal
1. Disconnect the battery ground cable.
2. Disconnect the connector (1) from the harness and
remove the connector (1) from the bracket (4).
3. Remove the clip (2).
4. Remove the rear shock absorber (3).
Refer to
Shock Absorber in this section.
5. Disconnect the connector (10) from the harness and
remove the connector (10) from the gusset (11).
6. Remove the 2 bolts (5).
7. Disconnect the G-sensor (6).
Inspection and Repair
Refer to Shock Absorber in this section.
Installation
1. Set the G-sensor on the gusset (11).
2. Install 2 bolts (5) then tighten it to the specified torque.
Torque: 7 N´m (61 lb in)
3. Connect the connector (10) to the harness and insert
the connector (10) to the gusset (11).
4. Install the rear shock absorber (3).
Refer to
Shock Absorber in this section.
5. Connect the connector (1) to the harness and insert
the connector (1) to the bracket (4).
6. Insert the clip (2) to the bracket (4).
7. Connect the battery ground cable.

4A1±1 DIFFERENTIAL (FRONT)
AXIOM
DRIVELINE/AXLE
CONTENTS
Differential (Front) 4A1. . . . . . . . . . . . . . . . . . . . . . .
Differential (Rear) 4A2. . . . . . . . . . . . . . . . . . . . . . .
Driveline Control System 4B1. . . . . . . . . . . . . . . . . Driveline Control System (TOD) 4B2. . . . . . . . . . .
Drive Shaft System 4C. . . . . . . . . . . . . . . . . . . . . .
Transfer Case (TOD) 4D2. . . . . . . . . . . . . . . . . . . .
Differential (Front)
CONTENTS
Service Precaution 4A1±1. . . . . . . . . . . . . . . . . . . . . .
Front Drive Axle 4A1±2. . . . . . . . . . . . . . . . . . . . . . . . .
Diagnosis 4A1±2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pinion Shaft Oil Seal 4A1±3. . . . . . . . . . . . . . . . . . . . .
Pinion Shaft Oil Seal and Associated Parts 4A1±3
Removal 4A1±3. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inspection and Repair 4A1±4. . . . . . . . . . . . . . . . . .
Installation 4A1±4. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Front Drive Axle Assembly 4A1±5. . . . . . . . . . . . . . .
Front Drive Axle Assembly and
Associated Parts 4A1±5. . . . . . . . . . . . . . . . . . . . . .
Removal 4A1±6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . Installation 4A1±6. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Differential Assembly 4A1±8. . . . . . . . . . . . . . . . . . . .
Disassembled View 4A1±8. . . . . . . . . . . . . . . . . . . .
Disassembly 4A1±9. . . . . . . . . . . . . . . . . . . . . . . . . .
Reassembly 4A1±11. . . . . . . . . . . . . . . . . . . . . . . . . .
Differential Cage Assembly 4A1±20. . . . . . . . . . . . . . .
Disassembled View 4A1±20. . . . . . . . . . . . . . . . . . . .
Disassembly 4A1±20. . . . . . . . . . . . . . . . . . . . . . . . . .
Inspection and Repair 4A1±21. . . . . . . . . . . . . . . . . .
Reassembly 4A1±21. . . . . . . . . . . . . . . . . . . . . . . . . .
Main Data and Specifications 4A1±23. . . . . . . . . . .
Special Tools 4A1±25. . . . . . . . . . . . . . . . . . . . . . . . . .
Service Precaution
WARNING: THIS VEHICLE HAS A SUPPLEMENTAL
RESTRAINT SYSTEM(SRS). REFER TO THE SRS
COMPONENT AND WIRING LOCATION VIEW IN
ORDER TO DETERMINE WHETHER YOU ARE
PERFORMING SERVICE ON OR NEAR THE SRS
COMPONENTS OR THE SRS WIRING. WHEN YOU
ARE REFORMING SERVICE ON OR NEAR THE SRS
COMPONENTS OR THE SRS WIRING, REFER TO
THE SRS SERVICE INFOMATION. FAILURE TO
FOLLOW WARNINGS COULD RESULT IN POSSIBLE
AIR BAG DEPLOYMENT, PERSONAL INJURY, OR
OTHERWISE UNNEEDED SRS SYSTEM REPAIRS.CAUTION: Always use the correct fastener in the
proper location. When you replace a fastener, use
ONLY the exact part number for that application.
ISUZU will call out those fasteners that require a
replacement after removal. ISUZU will also call out
the fasteners that require thread lockers or thread
sealant. UNLESS OTHERWISE SPECIFIED , do not
use supplemental coatings (Paints, greases, or other
corrosion inhibitors) on threaded fasteners or
fastener joint interfaces. Generally,such coatings
adversely affect the fastener torque and the joint
clamping force, and may damage the fastener. When
you install fasteners, use the correct tightening
sequence and specification. Following these
instructions can help you avoid damage to parts and
systems.

DIFFERENTIAL (FRONT) 4A1±2
Front Drive Axle
Diagnosis
ConditionPossible causeCorrection
Oil Leak At Front AxleWorn or defective oil seal.Replace the oil seal.
Front axle housing cracked.Repair or replace.
Oil Leak At Pinion ShaftToo much gear oil.Correct the oil level.
Oil seal worn or defective.Replace the oil seal.
Pinion flange loose or damaged.Tighten or replace.
Noises In Front Axle Drive Shaft
JointBroken or worn drive shaft joints and
bellows (BJ and DOJ).Replace the drive shaft joints and
bellows.
ªClankº When Accelerating From
ªCoastºLoose drive shaft joint to output shaft
bolts.Tighten.
Damaged inner drive shaft joint.Replace.
Shudder or Vibration During
Acceleration
Excessive drive shaft joint angle.Repair.
AccelerationWorn or damaged drive shaft joints.Replace.
Sticking spider assembly (inner drive
shaft joint).Lubricate or replace.
Sticking joint assembly (outer drive
shaft joint).Lubricate or replace.
Vibration At Highway SpeedsOut of balance or out of round tires.Balance or replace.
Front end out of alignment.Align.
Noises in Front AxleInsufficient gear oil.Replenish the gear oil.
Wrong or poor grade gear oil.Replace the gear oil.
Drive pinion to ring gear backlash
incorrect.Adjust the backlash.
Worn or chipped ring gear, pinion
gear or side gear.Replace the ring gear, pinion gear or
side gear.
Pinion shaft bearing worn.Replace the pinion shaft bearing.
Wheel bearing worn.Replace the wheel bearing.
Differential bearing loose or worn.Tighten or replace.
Wanders and PullsWheel bearing preload too tight.Adjust the wheel bearing preload.
Incorrect front alignment.Adjust the front alignment.
Steering unit loose or worn.Tighten or replace.
Tire worn or improperly inflated.Adjust the inflation or replace.
Front or rear suspension parts loose
or broken.Tighten or replace.
Front Wheel ShimmyWheel bearing worn or improperly
adjusted.Adjust or replace.
Incorrect front alignment.Adjust the front alignment.
Worn ball joint or bush.Replace the ball joint or bush.
Steering unit loose or worn.Tighten or replace.
Tire worn or improperly inflated.Replace or adjust the inflation.
Shock absorber worn.Replace the shock absorber.

4A1±3 DIFFERENTIAL (FRONT)
Pinion Shaft Oil Seal
Pinion Shaft Oil Seal and Associated Parts
415R200001
Legend
(1) Flange Nut
(2) Flange(3) Oil Seal
(4) Outer Bearing
(5) Collapsible Spacer
Removal
1. Raise the vehicle and support it at the frame.
The hoist must remain under the front axle housing.
2. Drain the front axle oil by loosening the drain plug(1).
412RS001

DIFFERENTIAL (FRONT) 4A1±4
3. Remove the front propeller shaft. Refer to Front
Propeller Shaft
in this section.
4. Remove flange nut by using pinion flange holder
J±8614±01.
415RS018
5. Remove flange.
6. Remove oil seal.
7. Remove outer bearing by using remover J±39602.
415RS001
8. Remove collapsible spacer.
Inspection and Repair
Make necessary correction or parts replacement if wear,
damage, corrosion or any other abnormal condition are
found through inspection.
Check the following parts.
1. Seal surface of the pinion.
2. Cage bore for burns.
Installation
1. Install collapsible spacer. Discard the used
collapsible spacer and install a new one.
2. Install outer bearing.
NOTE: Do not drive in, but just temporarily set in the outer
bearing by hand, which should be indirectly pressed in
finally by tightening the flange nut.
3. Install oil seal, use oil seal installer J±24250 to install a
new oil seal that has been soaked in axle lubricant.
415RS002
4. Install flange.
5. Install flange nut, refer to
Differential Assembly
Overhaul for flange nut reassembly
in this section.
NOTE: Discard the used nut and install a new one.

4A1±5 DIFFERENTIAL (FRONT)
Front Drive Axle Assembly
Front Drive Axle Assembly and Associated Parts
412R200003
Legend
(1) Propeller Shaft
(2) Mounting Nut
(3) Front Axle Case Assembly and Front Drive
Shaft Assembly
(4) Washer(5) Mounting Bolt
(6) Tie±rod End; Power Steering Unit
(7) Knuckle and Back Plate
(8) Hub and Disc Assembly
(9) Suspension Crossmember

DIFFERENTIAL (FRONT) 4A1±6
Removal
1. Jack up the vehicle and support it using jack stand.
2. Remove the tire and wheel.
3. Remove the stone guard.
4. Remove the brake caliper fixing bolt and hang the
caliper. Refer to
Disc Brakes in Brake section.
5. Remove the antilock brake system speed sensor.
Refer to
Front Wheel Speed Sensor in Brake section.
6. Remove the hub and disc assembly.
Refer to
Front Hub and Disc in this section.
7. Remove the propeller shaft, refer to
Front Propeller
Shaft
in this section.
8. Loosen the height control arm of the torsion bar, then
remove the torsion bar from lower control arm.
Refer to
Torsion Bar in Suspension section.
9. Remove the suspension crossmember.
10. Remove the lower nut (1) of the stabilizer link.
11. Remove the lower bolt and nut (2) of the shock
absorber.
412RW057
12. Remove the tie-rod end from the knuckle. Refer to
Power Steering Unit in Steering Section.
13. Disconnect the hose of the shift on the fly.
14. Disconnect the actuator connector.
15. Remove the bolts and nuts of the lower control arm
(Frame side), then disconnect the lower control arm
from frame.
16. Disconnect between the right side upper control arm
and the knuckle, then remove the knuckle with lower
control arm.CAUTION: When removing the knuckle, be careful
not to damage the oil seal inside of the knuckle.
410RW008
17. Support the differential case by the jack.
18. Remove the front axle mounting bolts and nuts, lower
the jack slowly. Remove the left side drive shaft end
from the knuckle, then lower the axle assembly from
the vehicle.
CAUTION:
1. Make sure the axle assembly is supported
securely when performing repairs.
2. Do not damage the power steering unit when
performing the repairs.
3. Do not damage the shift±on±the fly hose bracket
when performing the repairs.
Installation
1. Support the differential case with a jack.
2. Jack up the front drive axle assembly, install the left
side drive shaft to the knuckle, then install the mount
bolts and nuts.
CAUTION:
1. Do not damage the power steering unit when
performing the repairs.
2. Do not damage the shift±on±the fly hose bracket
when performing the repairs.
3. When installing the drive shaft to the knuckle, be
careful not to damage the oil seal inside of the
knuckle.

4A1±7 DIFFERENTIAL (FRONT)
3. Tighten the mounting bolts and nuts to the specified
torque.
Torque: 168 N´m (124 lb ft)
412R200004
4. Install the right side knuckle with lower control arm to
the upper control arm.
Refer to
Knuckle in Suspension section.
CAUTION: Carefully insert the drive shaft into the
knuckle, to avoid damaging the oil seal.
5. Align the bolt hole of the lower control arm, then install
the bolts and nuts.
NOTE: Adjust the buffer clearance before tightening the
bolts and nuts of the lower control arm.
6. Install the hose of the shift on the fly.
7. Install the actuator connector of the shift on the fly.
8. Install the tie-rod end of the power steering unit to the
knuckle, tighten the nut to the specified torque.
Torque: 118 N´m (87 lb ft)
9. Install lower bolts and nuts of the shock absorber,
tighten it to the specified torque.
Torque: 93 N´m (69 lb ft)
10. Install lower nuts of the stabilizer link, tighten it to the
specified torque.
11. Install the suspension crossmember.
12. Install the torsion bar.
Refer to
Torsion Bar in Suspension section.
13. Install the front propeller shaft.
Refer to
Front Propeller Shaft in this section.
14. Install the hub and disc assembly and adjust the
bearing preload.
Refer to
Front Hub and Disc in this section.
15. Install the wheel speed sensor of the antilock brake
system.
16. Install the brake caliper. Tighten the bolt of the caliper
bracket to the specified torque.
Torque: 50 N´m (37 lb ft)
17. Install the stone guard.18. Install the tire and wheel.
19. Lower the vehicle, adjust the trim height.
Refer to
Trim Height Adjustment in Steering section.
20. Tighten the bolts and nuts of the lower control arm to
the specified torque.
Refer to
Lower Control Arm in Suspension section.