What Causes the Car to Shake at Speeds Above 110 km/h?
2 Answers
Generally, it's due to inaccurate four-wheel alignment data. Simply find a place to perform a four-wheel alignment, as this is a common issue with cars and not a major fault. Causes of vehicle shaking include: 1. Highway cruising shake: Deformation or displacement of the chassis are significant reasons for steering wheel shake. Once severe steering wheel shake occurs, maintenance technicians usually check if there's noticeable deformation in the vehicle's chassis, followed by a four-wheel alignment inspection. If necessary, adjustments to the toe angle and caster angle of the chassis may be required. 2. Shaking when driving over bumpy roads: If the issue isn't obvious when driving on smooth roads but becomes severe on bumpy roads, it's likely due to improper connections such as loose suspension tie rod ends or detached ball joint boots. 3. Vague steering at low speeds with severe body sway: This is mostly caused by abnormal tire wear. During daily use, factors like scraping, collision, or aging can lead to suspension alignment deviations, potentially causing abnormal tire wear, resulting in body shake and steering deviation.
When the speed exceeds 110 km/h, the car starts to shake, which is mostly caused by wheel imbalance. I once helped a friend check a similar issue and found uneven weight distribution on the tires, amplifying resonance at high speeds and causing the entire car to vibrate. Simply put, uneven tire wear or incorrect wheel balancing can manifest at specific speeds like 110 km/h. Regular tire balancing tests are needed to prevent this; otherwise, long-term neglect can accelerate suspension component wear and even affect driving safety. It's recommended to first visit a repair shop for a free wheel balancing check, which usually resolves the issue quickly. If the shaking occurs right after tire replacement, it could also be due to new tire quality or installation problems. Remember, don't delay too long—the shaking will worsen wear and lead to more expensive repairs.
