What Causes Body Shaking at Speeds of 80 to 90 km/h?
2 Answers
This situation occurs due to issues with the wheel dynamic balance. When this happens, you should visit a professional institution to perform a dynamic balance test for each wheel. After every tire replacement or repair, it is essential to conduct a dynamic balance test for each wheel to prevent abnormal vibrations during high-speed driving. More details are as follows: 1. If abnormal wheel vibrations occur during high-speed driving, the vehicle body will also experience abnormal shaking, which affects driving stability, handling, and ride comfort. 2. Tires are a crucial component of a vehicle, being the only part in contact with the ground. They are vital for driving stability and safety. As rubber products, tires age over time with prolonged use, necessitating regular replacement. 3. Under normal conditions, tires can be used for four years after installation. It is recommended to replace them every four years. When purchasing new tires, always check the production date, as tires have a shelf life. Normally, unused tires have a shelf life of three years. Avoid purchasing tires that have been in storage for over three years. 4. During regular vehicle use, frequently check the tire pressure, as it is critical for tire performance. Tire pressure should neither be too high nor too low.
I've been driving for almost twenty years and have encountered several instances where the car body shakes violently when the speed reaches 80 to 90 km/h. The most common cause is tire imbalance. If the wheel dynamic balance isn't done properly, it can cause resonance and shaking at high speeds, making it feel like sitting on a vibrating chair—very uncomfortable. Uneven tire wear or incorrect tire pressure can also trigger the same issue. Additionally, aging suspension components like shock absorbers or deformed control arms can make the car wobble at high speeds. If you ignore this problem, it can worsen tire wear or affect the suspension system over time, increasing driving risks. I recommend getting your tire balance and pressure checked at a professional shop as soon as possible; if necessary, have the entire suspension system inspected. Don't delay—driving safety is paramount.
