Kia Carnival (2009+). Instruction — part 343

1. Substitute a known good set of wheels and tires.
2. Perform a road test.
3. If the vehicle still exhibits a shake or vibration, note the vehicle speed

and/or engine rpm which it occurs.
! Is the vibration felt ?
! YES
Engine/transmission imbalance.
See the specification of TR group, EM group, FL group and EC group.
! NO
Install the original tire/wheel assemblies one by one, Road testing at
each step until the damaged tire(s)/wheel(s) as necessary. Test the
system for normal operation.

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

Suspension System

Front Suspension System

Suspension System

2009 > G 2.7 DOHC >

COMPONENTS

Suspension System

Front Suspension System - Front Strut Assembly

Suspension System