Problem Symptoms Table
WARNING: This page is about a different car, the 2007 Lexus SC 430. However, it is still accessible from the selected car via links, so may be relevant.
HINT:
Use the table below to help determine the cause of the problem symptom. The potential causes of the symptoms are listed in order of probability in the "Suspected area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
Suspension system
SYSTEM REFERENCE
| Symptom | Suspected area | See |
|---|---|---|
| Wander/pulls | 1. Tires (worn or improperly inflated) | TIRE AND WHEEL SYSTEM |
| 2. Front wheel alignment (incorrect) | FRONT WHEEL ALIGNMENT | |
| 3. Rear wheel alignment (incorrect) | REAR WHEEL ALIGNMENT | |
| 4. Steering linkage (loosen or worn) | - | |
| 5. Front hub bearings (loosen or worn) | ON-VEHICLE INSPECTION | |
| 6. Rear hub bearings (loosen or worn) | ON-VEHICLE INSPECTION | |
| Bottoming | 1. Vehicle (overloaded) | - |
| 2. Front coil spring (weak) | REMOVAL | |
| 3. Rear coil spring (weak) | DISASSEMBLY | |
| 4. Front shock absorber (worn) | INSPECTION | |
| 5. Rear shock absorber (worn) | DISASSEMBLY | |
| Sways/pitches | 1. Tires (worn or improperly inflated) | TIRE AND WHEEL SYSTEM |
| 2. Front stabilizer bar (bent or broken) | REMOVAL | |
| 3. Rear stabilizer bar (bent or broken) | REMOVAL | |
| 4. Front shock absorber (worn) | REMOVAL | |
| 5. Rear shock absorber (worn) | DISASSEMBLY | |
| Wheel shimmy | 1. Tires (worn or improperly inflated) | TIRE AND WHEEL SYSTEM |
| 2. Wheels (out of balance) | TIRE AND WHEEL SYSTEM | |
| 3. Front shock absorber (worn) | REMOVAL | |
| 4. Rear shock absorber (worn) | DISASSEMBLY | |
| 5. Front wheel alignment (incorrect) | FRONT WHEEL ALIGNMENT | |
| 6. Rear wheel alignment (incorrect) | REAR WHEEL ALIGNMENT | |
| 7. Front lower ball joint (worn) | INSPECTION | |
| 8. Front stabilizer link ball joint (worn) | REMOVAL | |
| 9. Rear upper control arm ball joint (worn) | REMOVAL | |
| 10. Toe control link ball joint (worn) | INSPECTION | |
| 11. Rear stabilizer link ball joint (worn) | REMOVAL | |
| 12. Front hub bearings (loosen or worn) | ON-VEHICLE INSPECTION | |
| 13. Rear hub bearings (loosen or worn) | ON-VEHICLE INSPECTION | |
| 14. Steering linkage (loosen or worn) | - | |
| Abnormal tire wear | 1. Tires (improperly inflated) | TIRE AND WHEEL SYSTEM |
| 2. Front wheel alignment (incorrect) | FRONT WHEEL ALIGNMENT | |
| 3. Rear wheel alignment (incorrect) | REAR WHEEL ALIGNMENT | |
| 4. Front shock absorber (worn) | REMOVAL | |
| 5. Rear shock absorber (worn) | DISASSEMBLY |