Inspection and verification
1. Check the customer complaint.
2. Visually inspect for obvious signs of mechanical damage.
3. If an obvious cause for the problem you have identified or the customer has described is found, correct it (if possible) before proceeding with further actions.
4. If the problem is not visually obvious, check the symptom and refer to the Symptom Table.
Mechanical factors
- Tires
- Wheel damage
- Steering knuckle and tie rod end
- Ball joint of the lower arm of the front suspension
- Front suspension lower arm bushing
- Front suspension strut assembly with spring
- Front and rear anti-roll bars of the car and their connecting arms
- Rear suspension trailing arm
- Rear suspension spring
- Rear suspension shock absorber
- Front and rear lower control arms of the rear suspension
- Upper arm rear suspension
- Rear wheel knuckle
Visual inspection table
|
State |
Possible Causes |
Action |
|
•Lead to the left or right |
•Tire(s) |
•CHECK and ADJUST tire(s) pressure. INSPECT tire(s) for excessive wear. |
|
•Incorrect vehicle height (front or rear, above or below normal) |
•CHECK for abnormal loading, coil spring deflection, or non-standard spring installation. |
|
|
•Worn or damaged steering gear or steering linkage |
•Check the steering system. REFER to Section 211-00 |
|
|
•Brake system |
•Check brakes. REFER to Section 206-00 |
|
|
•Incorrect wheel alignment angles |
•Proceed to Pinpoint Test A. |
|
|
Lack of steering centering |
•Incorrect vehicle height (front or rear, above or below normal) |
•CHECK for abnormal loading, coil spring deflection, or non-standard spring installation. |
|
•Power steering or steering gear |
•Check the steering system. REFER to Section 211-00 |
|
|
•Lower suspension arm ball joint |
•Refer to the "Checking Elements" chapter in this section. |
|
|
•Incorrect wheel alignment angles |
•Proceed to Pinpoint Test B. |
|
|
•Incorrect following of the track |
•Rear suspension damage |
•Proceed to Pinpoint Test C. |
|
•Uneven movement pattern |
•Front and rear anti-roll bars, their connecting arms and bushings |
•Check and install new components if necessary. Refer to Section 204-01 (Front Suspension). Refer to Section 204-02 (Rear Suspension). |
|
•Front suspension lower arm bushing |
•Check and install new bushings if necessary. REFER to Section 204-01 |
|
|
•Rear suspension arm bushing |
•Check and install a new lever if necessary. REFER to Section 204-02. |
|
|
•Front suspension strut assembly with spring |
•Check the front suspension strut and spring assembly. REFER to Section 204-01. |
|
|
•Rear shock absorber |
•Check the rear shock absorber. REFER to Section 204-02. |
|
|
•Incorrect tire pressure |
•Check tire pressure. REFER to Section 204-04. |
|
|
•Increased noise |
•Worn out front wheel bearings •Worn ball joint of the lower arm of the front suspension |
•Go to Pinpoint Test E. •If necessary, install a new front lower control arm. REFER to Section 204-01. |
|
•Abnormal tire wear pattern |
•Incorrect tire pressure |
•Check tire pressure. REFER to Section 204-04. |
|
•Incorrect wheel alignment angles |
•Proceed to Pinpoint Test F. |
|
|
•Vibration |
•Imbalance of wheels/tires or increased runout |
•Proceed to Pinpoint Test G. |
|
•Wheels/tires |
•Check tires. Balance wheels or install new wheels/tires if necessary. REFER to Section 204-04. |
|
|
•Incorrect wheel alignment angles |
•Proceed to Pinpoint Test A. |
|
|
•Steering system |
•Check steering system. REFER to Section 211-00. |
|
|
•Front suspension strut assembly with spring |
•Proceed to Pinpoint Test D. |
|
|
•Front pillar support |
•Tighten the front strut support. Repair or install new components if necessary. |
|
|
•Damage to the lower arm of the front suspension |
•Go to Pinpoint Test E. |
|
|
•Damage or wear of the front suspension lower arm bushing |
•Go to Pinpoint Test E. |
|
|
•Damage or wear of the front wheel bearing |
•Proceed to Pinpoint Test G. |
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