What are the causes of car body shaking at high speeds?
2 Answers
Car body shaking at high speeds can be caused by various complex factors, including excessive tire pressure, severe tire wear, imbalanced tire dynamic balance, and inaccurate wheel alignment. Here are the detailed explanations: 1. Excessive tire pressure: If the tire pressure is too high, the car will bounce more significantly on bumpy roads, leading to body shaking at high speeds and increasing the risk of a tire blowout. Generally, the recommended tire pressure is around 2.5 bar. 2. Severe tire wear: If the tires are severely worn with uneven tread, it can cause body shaking at high speeds. In such cases, the tires should be repaired or replaced. 3. Imbalanced tire dynamic balance: If the wheel balance weights are displaced or fall off, the tires will lose balance, resulting in shaking symptoms during high-speed driving. At this point, the balance weights should be inspected and replaced. 4. Inaccurate wheel alignment: If the car does not undergo wheel alignment after tire replacement, issues such as shaking while driving, increased fuel consumption, and severe tire wear may occur. In such cases, the car should undergo wheel alignment again.
I remember last time I was driving on the highway, the car body suddenly started shaking, and it felt like the entire steering wheel was vibrating—it was really frustrating. Later, the mechanic checked and said the main reason was unbalanced tires. At high speeds, this imbalance gets amplified and can even lead to wheel rim deformation or issues with the suspension system, such as aging shock absorbers. After that experience, I learned to regularly check tire pressure and wear conditions. If the pressure is uneven or the tires wear unevenly, shaking is more likely to occur. I suggest everyone not delay—highway shaking not only affects driving comfort but can also damage bearings or cause safety hazards over time. Prevention is key. Getting a dynamic balance check at a professional shop every few months can avoid a lot of trouble.
