Suspension System - General Information: Troubleshooting

Symptom	Expected cause	Countermeasure
Heavy weight feeling on steering wheel	Faulty on front wheel alignment	Adjust or repair
	Over rotation resistance of lower arm ball joint	Replace
	Over rotation resistance of strut bearing	Replace
	Too low amount of Tire air pressure	Adjust
Steering wheel recovery trouble	Faulty on front wheel alignment	Adjust or repair
Noise or ride comfort trouble	Faulty on wheel alignment	Adjust or repair
	Inappropriated tire air pressure	Adjust
	Faulty function of shock absorber	Replace
	Damaged coil spring	Replace
	Damaged stabilizer	Replace
	Damaged lower arm bushing	Replace
	Stabilizer link fixing nut got loosen	Retighten
	Damaged stabilizer link (dust cover tearing, ring broke away)	Replace
Abnormal warned out of tire	Faulty wheel alignment	Adjust or repair
Abnormal warned out of tire	Inappropriated tire air pressure	Adjust
Unstable steering wheel	Front wheel alignment trouble	Adjust or repair
	Lower arm ball joint turning resistance is too small	Replace
	Damaged lower arm bushing	Replace
Vehicle pushed aside phenomenon	Wheel alignment trouble	Adjust or repair
	Unbalance of right/left tire	Adjust or replace
	Damaged or transformed lower arm bushing	Replace
	Damaged coil spring	Replace
Steering wheel juddering	Front wheel alignment trouble	Adjust or repair
	Wheel balance trouble	Adjust or repair
	Lower are ball joint turning resistance is too much or too small	Replace
	Damaged stabilizer	Replace
	Damaged lower arm bushing	Replace
	Shock absorber operating trouble	Replace
	Coil spring trouble	Replace

Troubleshooting

Wheel/tire noise, vibration and harshness concerns are directly related to vehicle speed and are not generally affected by acceleration, coasting or decelerating. Also, out-of-balance wheel and tires can vibrate at more than one speed. A vibration that is affected by the engine rpm, or is eliminated by placing the transmission in Neutral is not related to the tire and wheel. As a general rule, tire and wheel vibrations felt in the steering wheel are related to the front tire and wheel assemblies. Vibrations felt in the seat or floor are related to the rear tire and wheel assemblies. This can initially isolate a concern to the front or rear.

Careful attention must be paid to the tire and wheels. There are several symptoms that can be caused by damaged or worn tire and wheels. Perform a careful visual inspection of the tires and wheel assemblies. Spin the tires slowly and watch for signs of lateral or radial runout. Refer to the tire wear chart below to determine the tire wear conditions and actions

Wheel and tire diagnosis
Rapid wear at the center	Rapid wear at both shoulders	Wear at one shoulder
Courtesy of HYUNDAI MOTOR AMERICA	Courtesy of HYUNDAI MOTOR AMERICA	Courtesy of HYUNDAI MOTOR AMERICA
Center-tread down to fabric due to excessive over inflated tires Lack of rotation Excessive toe on drive wheels Heavy acceleration on drive	Under-inflated tires Worn suspension components Excessive cornering speeds Lack of rotation	Toe adjustment out of specification Camber out of specification Damaged strut Damaged lower arm
Partial wear	Feathered edge	Wear pattern
Courtesy of HYUNDAI MOTOR AMERICA	Courtesy of HYUNDAI MOTOR AMERICA	Courtesy of HYUNDAI MOTOR AMERICA
Caused by irregular burrs on brake drums	Toe adjustment out of specification Damaged or worn tie rods Damaged knuckle	Excessive toe on non-drive wheels Lack of rotation