Kia Niro: Suspension System / Troubleshooting

Troubleshooting
Symptom
Possible cause
Remedy
Hard steering
Improper front wheel alignment
Excessive turning resistance of lower arm ball joint
Low tire pressure
No power assist
Correct
Replace

Adjust
Repair and replace
Poor return of steering wheel to center
Improper front wheel alignment
Correct
Poor or rough ride
Improper front wheel alignment
Malfunctioning shock absorber
Broken or worn stabilizer
Broken or worn coil spring
Worn lower arm bushing
Correct
Repair or replace
Replace
Replace
Replace the lower arm assembly
Abnormal tire wear
Improper front wheel alignment
Improper tire pressure
Malfunctioning shock absorber
Correct
Adjust
Replace
Wandering
Improper front wheel alignment
Poor turning resistance of lower arm ball joint
Loose or worn lower arm bushing
Correct
Repair

Retighten or replace
Vehicle pulls to one side
Improper front wheel alignment
Excessive turning resistance of lower arm ball joint
Broken or worn coil spring
Bent lower arm
Correct
Replace

Replace
Repair
Steering wheel shimmy
Improper front wheel alignment
Poor turning resistance of lower arm ball joint
Broken or worn stabilizer
Worn lower arm bushing
Malfunctioning shock absorber
Broken or worn coil spring
Correct
Replace

Replace
Replace
Replace
Replace
Bottoming
Broken or worn coil spring
Malfunctioning shock absorber
Replace
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


Special service tools
Special Service Tools Tool Name / Number IIIustration Description Ball joint remover 09568-34000 Use ...

Front Suspension System
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Other information:

Kia Niro 2017 (DE HEV) Service Manual: Clutch Engagement Fork and Engagement Bearing Repair procedures
Removal 1. Remove the dual clutch assembly. (Refer to Dual Clutch System - "Dual Clutch Assembly") 2. Remove the clutch engagement bearing 1 (A) and 2 (B). 3. Remove the clutch engagement fork 1 (A) ...

Kia Niro (DE HEV) Owners Manual: Tires and wheels (Except europe)
✽ NOTICE We recommend that when replacing tires, use the same originally supplied with the vehicles. If not, that affects driving performance. When driving in high altitude grades, it is natural for the atmospheric pressure to decrease. Therefore, please check the tire pressure and a ...

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