Abnormal or excessive tire wear
Since the problems in suspension, wheels and tires involve several systems, they must all be considered when diagnosing a complaint. To avoid using the wrong symptom, always road test the vehicle first.
Proceed with the following preliminary inspection and correct any defects which are found.
1) Inspect tires for proper pressure and uneven wear.
2) Raise vehicle on a hoist and inspect front and rear suspension for loose or damaged parts.
3) Spin front wheels. Inspect for out-of-round tires, out-of-balance tires, bent rims, loose and/or rough wheel bearings.
Condition Possible Cause Action
Abnormal or excessive tire wear
Sagging or broken spring
Replace spring.
Tire out of balance
Adjust balance or replace tire.
Disturbed front wheel alignment
Check and adjust wheel alignment.
Faulty shock absorber
Replace shock absorber.
Hard driving
Replace tire.
Overloaded vehicle
Replace tire.
Not rotating tire
Replace or rotate tire.
Worn or loose wheel bearings
Replace wheel bearing.
Wobbly wheel or tire
Replace wheel or tire.
Tires not adequately inflated
Adjust tire pressure.