Why does the steering wheel shake when the car reaches 120 km/h?
1 Answers
The reasons for the steering wheel shaking when the car reaches 120 km/h are: 1. Significant deviation in wheel alignment; 2. Shock absorber malfunction; 3. Frame deformation; 4. Excessive backlash in the driven gear; 5. Loss or damage of balance weights; 6. Large differences in tire pressure among the four wheels. The function of the steering wheel is to convert the force applied by the driver to the edge of the steering wheel into torque, which is then transmitted to the steering shaft. The steering linkage, as a connecting component between the steering gear and the steering shaft, facilitates the standardization of the steering gear, compensates for errors during manufacturing and installation, and ensures proper installation of the steering gear and steering wheel in the vehicle. Solutions for the steering wheel shaking when the car reaches 120 km/h include: 1. Inspect and adjust tire pressure; 2. Check wheel balance and correct tire centripetal force; 3. Inspect wheel alignment; 4. Examine and repair the chassis, braking system, and engine suspension.