Suspension, Wheels and Tires Symptom Diagnosis

SUSPENSION, WHEELS AND TIRES SYMPTOM DIAGNOSIS

Condition	Possible Cause	Action
Vehicle pulls (Leads)	Mismatched or uneven tires	Replace tires  .
	Tires not adequately inflated	Adjust tire pressure  .
	Broken or sagging coil springs	Replace coil springs  .
	Radial tire abnormal lateral force	Check and/or replace tire  .
	Disturbed wheel alignment	Check and adjust wheel alignment  .
	Brake dragging in one road wheel	Repair brake  .
	Loose, bent or broken front or rear suspension parts	Tighten or replace related suspension parts  .
Abnormal or excessive tire wear	Sagging or broken coil springs	Replace coil springs  .
	Tire out of balance	Adjust balance or replace tire  .
	Disturbed wheel alignment	Check and adjust wheel alignment  .
	Faulty strut (shock absorber)	Replace strut (shock absorber)  .
	Hard driving	Replace tires  .
	Overloaded vehicle	Replace tires  .
	Not rotated tires	Replace or rotate tires  .
	Worn or loose wheel bearing	Replace wheel bearing  .
	Wobbly wheel or tire	Replace wheel or tire  .
	Tires not adequately inflated	Adjust tire pressure  .
	Front suspension frame and/or suspension arm are transformed	Check and/or replace front suspension frame and/or suspension arm  .
Wheel tramp	Blister or bump on tire	Replace tire  .
	Improper strut (shock absorber) action	Replace strut (shock absorber)  .
Shimmy, shake or vibration	Tire or wheel out of balance	Balance wheel or replace tire and/or wheel  .
	Loosen wheel bearings	Replace wheel bearings  .
	Worn tie-rod ends	Replace tie-rod ends  .
	Worn lower ball joints	Replace suspension arms  .
	Excessive wheel runout	Repair or replace wheel and/or tire  .
	Blister or bump on tire	Replace tire  .
	Excessively loaded radial runout of tire/wheel assembly	Replace tire or wheel  .
	Disturbed wheel alignment	Check and adjust wheel alignment  .
	Loose or worn steering linkage	Tighten or replace steering linkage  .
	Loose steering gear case bolts	Tighten steering gear case bolts  .
Abnormal noise, front end	Worn, sticky or loose tie-rod ends, lower ball joints, tie-rod inside ball joints or drive shaft joints	Replace tie-rod ends, suspension arms, tie-rods or drive shaft joints  .
	Damaged struts or mountings	Repair or replace struts or mountings  .
	Worn suspension arm bushes	Replace suspension arm bushes  .
	Loose stabilizer bar	Tighten bolts or nuts and/or replace bushes  .
	Loose wheel bolts	Tighten wheel bolts  .
	Loose suspension bolts or nuts	Tighten suspension bolts or nuts  .
	Broken or damaged wheel bearings	Replace wheel bearings  .
	Broken suspension springs	Replace suspension springs  .
	Poorly lubricated or worn strut bearings	Replace strut bearing  .
	Malfunction of Power Steering System	Check and correct malfunction  .
Low or uneven trim height See  (1)  .	Broken or sagging coil springs	Replace coil springs  .
	Over loaded	Check loading  .
	Incorrect coil springs	Replace coil springs  .
	Tires not adequately inflated	Adjust tire pressure  .
Ride too soft	Faulty strut (shock absorber)	Replace strut (shock absorber)  .
Suspension bottoms	Overloaded	Check loading  .
	Faulty strut (shock absorber)	Replace strut (shock absorber)  .
	Incorrect, broken or sagging coil springs	Replace coil springs  .
Body leans or sways in corners	Loose stabilizer bar	Tighten stabilizer bar bolts or nuts, or replace bushes  .
	Faulty strut (shock absorber) or mounting	Replace strut (shock absorber) or tighten mounting  .
	Broken or sagging coil springs	Replace coil springs  .
	Overloaded	Check loading  .
Cupped tires	Front struts defective	Replace struts  .
	Worn wheel bearings	Replace wheel bearings  .
	Excessive tire or wheel run-out	Replace tire and/or wheel  .
	Worn ball joints	Replace suspension arm  .
	Tire out of balance	Adjust tire balance  .
NOTE: (1) Right-to-left trim height ("H") difference should be within 15 mm (0.6 in.) with curb weight. (same with rear side.)