Isuzu 2000 Trooper Workshop Manual page 174

POWER ASSISTED SYSTEM
2A–6
Condition
Shimmy, Shake or Vibration
Hard Steering
Too Much Play In Steering
Poor Steering Wheel Returnability
Possible cause
Tire or wheel out of balance.
Loose wheel bearings.
Worn steering linkage ball joints.
Worn upper or lower ball joints.
Excessive wheel runout.
Blister or bump on tire.
Excessive loaded radial runout of
tire/wheel assembly.
Improper wheel alignment.
Loose or worn steering linkage.
Loose steering gear.
Tires not adequately inflated.
Loose, bent or broken front or rear
suspension parts.
Faulty shock absorber.
Hub bearing preload misadjustment.
Bind in steering linkage ball studs,
upper or lower ball joint.
Improper wheel alignment.
Steering gear misadjustment.
Tire not adequately inflated.
Bind in steering column or shaft.
Improper power steering system
operation.
Wheel bearings worn.
Loose steering gear or linkage.
Steering gear misadjustment.
Worn or loose steering
universal joint.
Worn steering linkage ball joints.
Worn upper or lower ball joints.
Bind in steering linkage ball joints.
Bind in upper or lower ball joints.
Bind in steering column and shaft.
Bind in steering gear.
Improper wheel alignment.
Tires not adequately inflated.
Loose steering wheel nut.
Worn wheel bearing.
Correction
Balance wheels or replace tire/or
wheel.
Replace wheel bearing.
Replace ball joints.
Replace ball joints
Repair or replace wheel and/or tire.
Replace tire.
Replace tire or wheel.
Check wheel alignment.
Tighten or replace steering linkage.
Tighten housing bolts.
Adjust tire pressure.
Tighten or replace the appropriate
suspension parts.
Replace shock absorber.
Adjust preload.
Replace ball joint.
Check wheel alignment.
Check and adjust pinion torque.
Inflate tires to proper pressure.
Repair or replace.
Repair or replace.
Refer to "Power steering system diag-
nosis"
Replace wheel bearings.
Retighten or repair.
Inspect and adjust steering gear
preload.
shaft Retighten or replace steering shaft.
Replace ball joints.
Replace ball joints.
Replace ball joints.
Replace ball joints.
Repair or replace.
Check and repair steering gear.
Adjust wheel alignment.
Adjust tire pressure.
Retighten.
Replace.