Hyundai Elantra (CN7): Suspension System / Troubleshooting

Hyundai Elantra (CN7) 2021-2025 Service Manual / Suspension System / Troubleshooting

Troubleshooting
Symptom
Possible cause
Remedy
Hard steering
Improper front wheel alignment
Correct
Excessive turning resistance of lower arm ball joint
Replace
Low tire pressure
Adjust
No power assist
Repair and replace
Poor return of steering wheel to center
Improper front wheel alignment
Correct
Poor or rough ride
Improper front wheel alignment
Correct
Malfunctioning shock absorber
Repair or replace
Broken or worn stabilizer
Replace
Broken or worn coil spring
Replace
Worn lower arm bushing
Replace the lower arm assembly
Abnormal tire wear
Improper front wheel alignment
Correct
Improper tire pressure
Adjust
Malfunctioning shock absorber
Replace
Wandering
Improper front wheel alignment
Correct
Poor turning resistance of lower arm ball joint
Repair
Loose or worn lower arm bushing
Retighten or replace
Vehicle pulls to one side
Improper front wheel alignment
Correct
Excessive turning resistance of lower arm ball joint
Replace
Broken or worn coil spring
Replace
Bent lower arm
Repair
Steering wheel shimmy
Improper front wheel alignment
Correct
Poor turning resistance of lower arm ball joint
Replace
Broken or worn stabilizer
Replace
Worn lower arm bushing
Replace
Malfunctioning shock absorber
Replace
Broken or worn coil spring
Replace
Bottoming
Broken or worn coil spring
Replace
Malfunctioning shock absorber
Replace

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 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

•
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

•
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

    SpecificationsFront Suspension Item Specification Suspension typeMacPherson StrutShock absorberTypeAdvanced Valve (RS Valve)Rear Suspension Item Specification Suspension typeTorsion Beam AxleShock absorberTypeAdvanced Valve (RS Valve)Wheel & Tire Item Specification Front wheel Rear wheel WheelSteel6.

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    Hyundai Elantra (CN7) 2021-2025 Service Manual: Components and positions

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    Components and positions Components Repair procedures Removal    • Handling wireless charging system parts by wet hands may cause electric shock. 1.Disconnect the negative (-) battery terminal.2.Remove the floor console upper cover assembly.

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