- Tire damage
- Wheel bearing(s)
- Front or rear suspension components are loose or damaged
- Loose, damaged or missing suspension mounting element(s)
- Incorrect spring(s) installed
- Damage or sagging spring(s)
- Damage or leakage of shock absorber(s)
- Damage or leakage of the rack(s)
- Worn or damaged suspension bushing(s)
- Steering components are loose, worn or damaged
- Damage to bridge elements
If an obvious cause for a problem you have identified or the customer has described is found, correct it (if possible) before proceeding with further steps.
If the cause is not visually obvious, clarify the symptom and refer to the Symptom Table.
Table of signs of malfunction
| Sign of malfunction | Possible reason | Action |
| Yaw | CHECK rear wheel alignment. For additional information, refer to: Specifications (204-00 Suspension System - General Information, Specifications) / Four-Wheel Alignment (204-00 Suspension System - General Information, General Procedures). INSPECT front and rear suspension system. REPAIR or INSTALL new suspension components as necessary. INSTALL a new rear drive axle/differential as necessary. | |
| Lateral displacement/slip | CHECK and ADJUST tire pressure. INSPECT tires for excessive wear. For additional information, refer to: Specifications (204-04 Wheels and Tires, Specifications). CHECK and ADJUST wheel alignment. For additional information, refer to: Four-Wheel Alignment (204-00 Suspension System - General Information, General Procedures). CHECK and ADJUST tire pressure. INSPECT tires for excessive wear. For additional information, refer to: Specifications (204-04 Wheels and Tires, Specifications). REPORT customer if vehicle is improperly loaded. CHECK steering system. For additional information, refer to: Steering System (211-00 Steering System - General Information, Diagnosis and Testing). CHECK brakes. For additional information, refer to: Brake System (206-00 Brake System - General Information, Diagnosis and Testing). | |
| Front suspension reaching dynamic deflection limiters or low ground clearance | Coil springs | CHECK the suspension height. If necessary, INSTALL new springs. For additional information, refer to: Spring (204-01 Front Suspension, Removal and Installation) / Shock Absorber (204-02 Rear Suspension, Removal and Installation). |
| Incorrect tire wear | CHECK and ADJUST tire pressure. INSPECT tires for excessive wear. For additional information, refer to: Specifications (204-04 Wheels and Tires, Specifications). CHECK and ADJUST wheel alignment. For additional information, refer to: Four-Wheel Alignment (204-00 Suspension System - General Information, General Procedures). BALANCE wheels/tires. | |
| Uneven movement pattern | Check and, if necessary, install new spring(s). For additional information, refer to: Spring (204-01 Front Suspension, Removal and Installation) / Shock Absorber (204-02 Rear Suspension, Removal and Installation). Check and, if necessary, install new shock absorber(s). For additional information, refer to: Front Shock Absorber (204-01 Front Suspension, Removal and Installation) / Shock Absorber (204-02 Rear Suspension, Removal and Installation). | |
| Shimmy or oscillation of wheels in vertical and lateral planes | CHECK and TIGHTEN the wheel nuts to the specified torque. For additional information, refer to: Specifications (204-04 Wheels and Tyres, Specifications). CHECK and TIGHTEN the suspension fasteners to the specified torque. For additional information, refer to: Specifications (204-01 Front Suspension, Specifications). CHECK the wheel bearings. For additional information, refer to: Front Wheel Bearing (204-01 Front Suspension, Removal and Installation). CHECK and INSTALL new components if necessary. For additional information, refer to: Front Stabilizer Bar Bush (204-01 Front Suspension, Removal and Installation) / Rear Stabilizer Bar Bush (204-02 Rear Suspension, Removal and Installation). CHECK the wheels/tyres. BALANCE or INSTALL new wheels/tyres if necessary. CHECK the ball joint(s). CHECK and INSTALL new steering components as necessary. CHECK and ADJUST wheel alignment. For additional information, refer to: Four-Wheel Alignment (204-00 Suspension System - General Information). CHECK and INSTALL new shock absorber(s) as necessary. For additional information, refer to: Front Shock Absorber (204-01 Front Suspension, Removal and Installation) / Shock Absorber (204-02 Rear Suspension, Removal and Installation). CHECK and INSTALL new springs as necessary. For additional information, refer to: Spring (204-01 Front Suspension, Removal and Installation) / Shock Absorber (204-02 Rear Suspension, Removal and Installation). | |
| Poor self-centering of the steering | CHECK ball joints. CHECK and, if necessary, INSTALL new steering components | |
| Steering wheel misalignment | CHECK and ADJUST wheel alignment. For additional information, refer to: Four-Wheel Alignment (204-00 Suspension System - General Information, General Procedures). CHECK and, if necessary, INSTALL new steering components | |
| Rocking or heeling | INFORM the customer that the vehicle is not loaded correctly. CHECK and TIGHTEN the wheel nut(s) to the specified torque. For additional information, refer to: Specifications (204-04 Wheels and Tyres, Specifications). CHECK and INSTALL new coil springs as required. For additional information, refer to: Spring (204-01 Front Suspension, Removal and Installation) / Shock Absorber (204-02 Rear Suspension, Removal and Installation). CHECK and TIGHTEN the anti-roll bar to the specified torque. For additional information, refer to: Specifications (204-01 Front Suspension, Specifications) / Specifications (204-02 Rear Suspension, Specifications). INSTALL a new lower control arm anti-roll bar as required. For additional information, refer to: Front Stabilizer Link (204-01 Front Suspension, Removal and Installation) / Rear Stabilizer Link (204-02 Rear Suspension, Removal and Installation). CHECK and, if necessary, INSTALL new shock absorber(s). For additional information, refer to: Front Shock Absorber (204-01 Front Suspension, Removal and Installation) / Shock Absorber (204-02 Rear Suspension, Removal and Installation). | |
| The car leans to the side | INFORM the customer that the vehicle was not loaded correctly. INSPECT the front and rear suspension system. REPAIR or INSTALL new suspension components as necessary. CHECK and INSTALL new shock absorber(s) as necessary. For additional information, refer to: Front Shock Absorber (204-01 Front Suspension, Removal and Installation) / Shock Absorber (204-02 Rear Suspension, Removal and Installation). CHECK and INSTALL new spring(s) as necessary. For additional information, refer to: Spring (204-01 Front Suspension, Removal and Installation) / Shock Absorber (204-02 Rear Suspension, Removal and Installation). CHECK suspension height. INSTALL new spring(s) as necessary. For additional information, refer to: Spring (204-01 Front Suspension, Removal and Installation) / Shock Absorber (204-02 Rear Suspension, Removal and Installation). | |
| Vibration/noise | CHECK and, if necessary, INSTALL new elements | |
| Exchange rate instability ("yawing") | INFORM customer that vehicle is not loaded properly. CHECK ball joint(s). CHECK wheel bearings. CHECK and INSTALL new suspension components as required. CHECK and TIGHTEN suspension fasteners to specified torque. For additional information, refer to: Specifications (204-01 Front Suspension, Specifications) / Specifications (204-02 Rear Suspension, Specifications). CHECK and INSTALL new steering components as required. CHECK and ADJUST wheel alignment. For additional information, refer to: Four-Wheel Alignment (204-00 Suspension System - General Information, General Procedures). |
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