Downloaded from www.Manualslib.com manuals search engine 3-2 STEERING, SUSPENSION, WHEELS AND TIRES
General Diagnosis
Since the problems in steering, suspension, wheels and tires involve several systems, they must all be consid-
ered when diagnosing a complaint. To avoid using the wrong symptom, always road test the vehicle first.
Proceed with the following preliminary inspections 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 and steering system for loose or damaged
parts.
3) Spin front wheel. Inspect for out-of-round tires, out-of-balance tires, bent rims, loose and/or rough wheel
bearings.
Diagnosis Table
Condition Possible Cause Correction
Vehicle Pulls (Leads)
Mismatched or uneven tires Replace tire.
Tires not adequately inflated Adjust tire pressure.
Broken or sagging springs Replace spring.
Radial tire lateral force Replace tire.
Disturbed front wheel alignment Check and adjust wheel alignment.
Disturbed rear wheel alignment Check and adjust wheel alignment.
Brake dragging in one road wheel Repair front brake.
Loose, bent or broken front or rear suspension
partsTighten or replace suspension part.
Abnormal or
Excessive Tire WearSagging or broken springs Replace spring.
Tire out of balance Adjust balance or replace tire.
Disturbed front wheel alignment Check 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 road wheel bearings Replace wheel bearing.
Wobbly wheel or tires Replace wheel or tire.
Tires not adequately inflated Adjust the pressure.
Wheel Tramp
Blister or bump on tire Replace tire.
Improper shock absorber action Replace shock absorber.
