What Causes Vehicle Vibration at 120 km/h?
3 Answers
The causes of vehicle vibration at 120 km/h are: 1. Uneven brake disc surface with excessive radial runout; 2. Rim deformation; 3. Excessive high or low tire pressure; 4. Significant wheel alignment data deviation; 5. Abnormal tire wear; 6. Tire dynamic balance failure; 7. Damper failure; 8. Engine power failure. The solutions for vehicle vibration at 120 km/h are: 1. Inspect and adjust front wheel alignment angles and toe-in; 2. Perform wheel dynamic balance inspection; 3. Adjust tire pressure or replace tires; 4. Perform driveshaft dynamic balance inspection; 5. Choose high-quality engine oil; 6. Inspect engine ignition system.
Last time I drove on the highway at 120 km/h, the car body was shaking, and even the steering wheel was wobbling, which scared me and gave me a cold sweat. It might be due to unbalanced tires. At high speeds, the wheels rotate quickly, and incorrect weight distribution can cause vibrations. It could also be caused by deformed rims or uneven tire wear leading to instability. Another possibility is brake disc issues; if the shaking worsens when braking, it might be the culprit. Problems with the suspension system, such as aging shock absorbers or loose brackets, could also cause shaking. Don't underestimate this issue; high-speed shaking can easily lead to driver fatigue, distraction, or even loss of steering control. It's recommended to first check tire pressure and wheel balance, and then visit a professional shop for a dynamic balance test. Pay more attention to the condition of your wheels before driving and perform regular maintenance to avoid unexpected incidents.
As a seasoned long-distance driver, experiencing vibrations at 120 km/h is quite common. It's usually caused by wheel or tire issues, such as imbalance or rusted/deformed rims. A slightly bent driveshaft at high speeds can also easily induce shaking. Worn suspension components like bushings or failed shock absorbers may exacerbate the vibration. Remember not to brake abruptly when vibrations occur - gradually ease off the throttle to decelerate to a safe speed and pull over. You can perform simple checks yourself: inspect whether tire treads are even and air pressures are consistent. Leaving it unresolved may damage more components and accelerate chassis aging. With today's convenient auto repair tools, I recommend addressing it promptly.
