What Causes Severe Steering Wheel Shaking When Speed Exceeds 100 km/h?
2 Answers
Speed exceeding 100 km/h causes steering wheel shaking due to: 1. Poor tire dynamic balance: During driving, local strong impacts cause the tire's balancing weights to fall off or become missing, affecting the tire's dynamic balance; 2. Significant differences in four-tire pressure: When there is a large difference in tire pressure among the four tires, especially between the left and right wheels, the car body will experience noticeable bumps and steering wheel shaking during high-speed driving; 3. Poor four-wheel alignment: When the four-wheel alignment has large deviation angles, the car body may drift or shake during high-speed driving.
I've been driving for several years and just encountered this issue recently. Once the speed goes over 100 km/h, the steering wheel starts shaking violently, making my palms sweat. I asked a mechanic at the repair shop, and he first checked the tire balance. The mechanic said that at high speeds, unbalanced tires can amplify the shaking due to increased wind resistance and uneven wheel rotation. He also mentioned that the rims might be deformed or the tires could be unevenly worn, which could cause trouble. I looked it up myself—if not fixed promptly, the tires could wear out faster, and even the brake discs might warp. The mechanic recommended a tire balance check every 10,000 km, and now I often remind my friends to pay attention to this to avoid losing control at high speeds. Driving steadily and avoiding potholes can delay the problem. Remember, shaking is no small matter—delaying repairs can lead to higher costs and even accidents.
