2002 ISUZU AXIOM suspension

3D±20REAR SUSPENSION
Diagnosis
ConditionPossible causeCorrection
Vehicle PullsMismatched or uneven tires.Replace tire.
Tires not adequately inflated.Adjust tire pressure.
Broken or sagging springs.Replace spring.
Radial tire lateral force.Replace tire.
Improper wheel alignment.Adjust wheel alignment.
Brake dragging in one wheel.Repair brake.
Loose, bent or broken front or rear
suspension parts.Tighten or replace the appropriate
suspension part(s).
Faulty shock absorbers.Replace shock absorber.
Parts in power steering valve
defective.Replace power steering unit.
Abnormal or Excessive Tire WearSagging or broken spring.Replace spring.
Tire out of balance.Balance or replace tire.
Improper wheel alignment.Check front end alignment.
Faulty shock absorber.Replace shock absorber.
Hard driving.Replace tire.
Overloaded vehicle.Replace tire and reduce load.
Tires not rotated periodically.Replace or rotate tire.
Worn or loose road wheel bearings.Replace wheel bearing.
Wobbly wheel or tires.Replace wheel or tire.
Tires not adequately inflated.Adjust the pressure.
Wheel HopBlister or bump on tire.Replace tire.
Improper shock absorber operation.Replace shock absorber.
Shimmy, Shake or VibrationTire or wheel out of balance.Balance wheels or replace tire/or
wheel.
Loose wheel bearings.Replace wheel bearing.
Worn steering linkage ball joints.Replace ball joints.
Worn upper or lower end ball joints.Replace ball joints.
Excessive wheel runout.Repair or replace wheel and/or tire.
Blister or bump on tire.Replace tire.
Excessive loaded radial runout of
tire/wheel assembly.Replace tire or wheel.
Improper wheel alignment.Check wheel alignment.
Loose or worn steering linkage.Tighten or replace steering linkage.
Loose steering unit.Tighten steering unit.
Tires not adequately inflated.Adjust tire pressure.
Loose, bent or broken front or rear
suspension parts.Tighten or replace the appropriate
suspension parts.
Faulty shock absorber.Replace shock absorber.
Hub bearing preload misadjustment.Adjust preload.
Parts in power steering valve
defective.Replace power steering unit.

REAR SUSPENSION3D±21
Condition CorrectionPossible cause
Hard SteeringBind in steering linkage ball studs,
upper or lower ball joint.Replace ball joint.
Improper wheel alignment.Check wheel alignment.
Tire not adequately inflated.Inflate tires to proper pressure.
Bind in steering column or shaft.Repair or replace.
Improper power steering system
operation.Repair or replace. Refer to Steering
section.
Too Much Play In SteeringWheel bearings worn.Replace wheel bearings.
Loose steering unit or linkage.Retighten or repair.
Worn or loose steering shaft
universal joint.Retighten or replace steering shaft.
Worn steering linkage ball joints.Replace ball joints.
Worn upper or lower end ball joints.Replace ball joints.
Poor Steering Wheel ReturnabilityBind in steering linkage ball joints.Replace ball joints.
Bind in upper or lower ball joints.Replace ball joints.
Bind in steering column and shaft.Repair or replace.
Bind in steering gear.Check and repair steering gear.
Improper wheel alignment.Adjust wheel alignment.
Tires not adequately inflated.Adjust pressure.
Loose steering wheel nut.Retighten.
Worn wheel bearing.Replace.
Misassemble Transfer Gear ASMReassemble Transfer Gear to proper
portion
Abnormal NoiseWorn, sticky or loose upper or lower
ball joint, steering linkage ball joints
or drive axle joints.Replace.
Faulty shock absorbers.Replace.
Worn upper or lower control arm
bushing.Replace.
Loose stabilizer bar.Retighten bolts or replace bushings.
Loose wheel nuts.Tighten nuts. Check for elongated
wheel nut holes. Replace wheel if
required.
Loose suspension bolts or nuts.Retighten suspension bolts or nuts.
Broken or otherwise damaged wheel
bearings.Replace wheel bearing.
Broken suspension springs. Replace spring.
Loose steering unit. Retighten mounting bolt.
Faulty steering unit.Replace steering unit.
Wandering or Poor Steering StabilityMismatched or unevenly worn tires.Replace tire or inflate tires to proper
pressure.
Loose steering linkage ball joints.Replace ball joints.
Faulty shock absorbers.Replace shock absorber.
Loose stabilizer bar.Tighten or replace stabilizer bar or
bushings.
Broken or sagging springs.Replace spring (pairs).
Improper wheel alignment.Adjust wheel alignment.

3D±22REAR SUSPENSION
Condition CorrectionPossible cause
Erratic Steering When BrakingWorn wheel bearings.Replace wheel bearings.
Broken or sagging springs.Replace spring (pairs).
Leaking caliper.Repair or replace caliper.
Warped discs.Replace brake disc.
Badly worn brake pads.Replace brake pads.
Tires are inflated unequally.Inflate tires to proper pressure.
Low or Uneven Trim HeightBroken or sagging springs.Replace springs (In pairs).
Vehicle overloaded.Reduce load.
Incorrect springs.Adjust or replace torsion bar.
Trim Height out of specAdjust Trim height
Suspension BottomsVehicle overloaded. Reduce load.
Faulty shock absorber.Replace shock absorber.
Incorrect, broken or sagging springs.Replace springs.
Body LeansTrim Height out of specAdjust Trim height
Loose stabilizer bar.Tighten stabilizer bar bolts or replace
bushings.
Faulty shock absorber, struts or
mounting.Replace shock absorber.
Broken or sagging springs.Replace springs (In pairs).
Vehicle overloaded.Reduce load.
Cupped TiresWorn wheel bearings.Replace wheel bearing.
Excessive tire or wheel run out.Replace tire or wheel.
Worn ball joints.Replace ball joints.
Tire out of balance.Adjust tire balance.

REAR SUSPENSION3D±23
Coil Spring
Coil Spring and Associated Parts
460R200004
Legend
(1) Stabilizer Bar
(2) Upper Link Fixing Bolt and Nut
(3) Rubber Plate(4) Coil Spring
(5) Insulator
(6) Shock Absorber
(7) Breather Hose
Removal
1. Raise the vehicle and support the frame with suitable
safety stands.
2. Support the rear axle case with a jack.
3. Disconnect brake hose at the crossmember.
4. Remove breather hose.
5. Remove upper link fixing bolt, nut and rubber plate on
the rear axle case (left-side only).6. Disconnect the stabilizer bar at the stabilizer link.
7. Remove the shock absorber from the axle case.
8. Remove spring insulator.
9. Remove the insulator and coil spring while lowering
the rear axle case.
CAUTION: Be sure not to let the brake hose, parking
brake cable, and breather hose extend to their full
length.

3D±24REAR SUSPENSION
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:

Coil spring

Insulator
Installation
1. Install coil spring and make sure that the coil spring is
installed in the proper position. Paint mark(1) should
be downward.
460RW001
2. Fit the end of the coil spring to the coil spring seat and
mount the coil spring on the rear axle case.
460RW004
3. Install the insulator on the coil spring. Jack up the axle
case gently with the top of the coil spring set to the
spring seat on the frame side.
460RW013
4. Install shock absorber and tighten the nut lightly, then
retighten it to the specified torque after the vehicle is
at curb height.
NOTE: When mounting shock absorber, be sure not to
use grease on bushings or any other nearby part.
Torque: 78 N´m (58 lb ft)
5. Install stabilizer bar at the stabilizer link.
Torque: 31 N´m (23 lb ft)
6. Install upper link with rubber plate and tighten fixing
bolt.
Torque: 137 N´m (101 lb ft)
7. Install breather hose.
8. Connect brake hose and bleed the brake system.
Refer to
Bleeding the Brake Hydraulic System in
Brake
section.

REAR SUSPENSION3D±25
Shock Absorber
Shock Absorber and Associated Parts
461RW001
Legend
(1) Nut, Bush and Washer(2) Shock Absorber
(3) Nut and Washer
Removal
1. Remove shock absorber fixing nut, bush and washer
(upper side).
2. Remove shock absorber fixing nut and washer (lower
side).
3. Remove shock absorber.
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:

Shock absorber

Rubber bushing
NOTE: When mounting rubber bushings, be sure not to
use grease on bushings or any other nearby part.
Installation
1. Install shock absorber. When mounting shock
absorber, be sure not to use grease on bushings or
any other nearby part.
2. Install nut and washer (lower side), then tighten the
nut lightly. Retighten to the bolt and nut specified
torque after the vehicle is at curb height.
Torque: 78 N´m (58 lb ft)
3. Install nut, bush and washer (upper side), then tighten
the nut lightly. Retighten to the nut specified torque
after the vehicle is at curb height.
Torque: 20 N´m (14 lb ft)

3D±26REAR SUSPENSION
Trailing Link
Trailing Link and Associated Parts
460RW005
Legend
(1) Bolt and Nut (Axle side)(2) Protector (Left side only)
(3) Bolt (Frame side)
Removal
1. Remove the parking brake cable from the trailing link.
2. Remove the trailing link fixing bolt, nut and protector.
3. Remove trailing link.
Inspection and Repair
Make necessary correction or parts replacement if wear,
damage, corrosion or any other abnormal condition are
found through inspection.
1. Trailing link
2. Rubber bushing

Remove the rubber bushing by using remover
J±39214.
901RW058

REAR SUSPENSION3D±27

Install the rubber bushing by using installer
J±39214.
NOTE: When mounting rubber bushings, be sure not to
use grease on bushings or any other nearby part.
901RW059
Installation
1. Install trailing link. Make sure that the trailing link is in
its correct position.
NOTE: When mounting trailing link, be sure not to use
grease on bushings or any other nearby part.
460RW011
2. Install bolt, nut and protector. Tighten the bolts and
nuts lightly, then retighten them to the specified
torque after the vehicle is at curb height.
Torque: 137 N´m (101 lb ft)
3. Install parking brake cable.
CAUTION: The parking brake cable should not be
overstrained or slackened.