Problem Possible Cause Correction
GENERAL INFORMATION
Since the problems in steering, suspension,
wheels and tyres involve several systems, they
must all be considered when diagnosing a
complaint. To identify the symptom, always road
test the vehicle first.
Proceed with the following preliminary inspections
and correct any defects which are found.
1. Inspect tyres for proper pressure and uneven
wear.
2. Raise vehicle on a hoist and inspect front and
rear suspension and steering linkage for loose
or damaged parts.
3. Spin front wheels. Inspect for out-of-round
tyres, out-of-balance tyres, loose and/or rough
wheel bearings.
GENERAL TROUBLESHOOTING
Vehicle Pulls
Abnormal or Excessive
Tyre Wear
Shimmy, Shake or
Vibration
1. Mismatched or uneven tyres.
2. Tyres not adequately inflated.
3. Broken or sagging springs.
4. Radial tyre lateral force.
5. Improper wheel alignment.
6. Brake dragging in one wheel.
7. Loose, bent or broken front or rear
suspension parts.
8. Faulty shock absorbers.
1. Sagging or broken spring.
2. Tyre out of balance.
3. Improper wheel alignment.
4. Faulty shock absorber.
5. Hard driving.
6. Overloaded vehicle.
7. Tyres not rotated periodically.
8. Worn or loose road wheel bearings.
9. Wobbly wheel or tyres.
10. Tyres not adequately inflated.
1. Tyre or wheel out of balance.
2. Loose wheel bearings.
3. Worn steering linkage ball joints.
4. Worn upper or lower end ball joints.
5. Excessively upper wheel runout.
6. Blister or bump on tyre.
7. Excessive loaded radial run out of
tyre/wheel assembly.
8. Improper wheel alignment.
9. Loose or worn steering linkage.
10. Loose steering gear.
11. Tyres not adequately inflated.
12. Loose, bent or broken front or rear
suspension parts.
13. Faulty shock absorber.
14. Hub bearing preload misadjustment.
Replace tyre.
Adjust tyre pressure.
Replace spring.
Replace tyre.
Adjust wheel alignment.
Repair brake.
Tighten or replace the
appropriate suspension part(s).
Replace shock absorber.
Replace spring.
Balance or replace tyre.
Check front end alignment.
Replace shock absorber.
Replace tyre.
Replace tyre and reduce load.
Replace or rotate tyre.
Replace wheel bearing.
Replace wheel or tyre.
Adjust the pressure.
Balance wheels or replace
tyre/or wheel.
Replace wheel bearing.
Replace ball joints.
Replace ball joints.
Repair or replace wheel
and/or tyre.
Replace tyre.
Replace tyre or wheel.
Check wheel alignment.
Tighten or replace steering
linkage.
Tighten housing bolts.
Adjust tyre pressure.
Tighten or replace the
appropriate suspension parts.
Replace shock absorber.
Adjust preload.