Why does the steering wheel shake when the car reaches 100 km/h?
3 Answers
In most cases, steering wheel vibration at 100 km/h is caused by wheel dynamic balance issues. The solution is to add counterweights to the wheels while they are in motion to correct the balance at various edge points - this process is called dynamic balancing. Other possible causes include shock absorber failure, frame deformation, or excessive clearance between the driving and driven gears of the final drive. It is recommended that owners regularly perform dynamic balance checks on their wheels. The dynamic balancing procedure is as follows: 1. Remove the logo in the center of the hub, install the dynamic balancer for measurement, and input the data. 2. Measure the rim width and input the data. 3. According to the computer-calculated data, add appropriate dynamic balance weights to both the inner and outer sides of the rim. When the re-test meets the standard, the process is complete.
Last time I drove on a trip, the steering wheel started shaking when the speed reached 100 km/h, which was really scary. Actually, this is quite common, mainly due to unbalanced tires. When driving, the wobbling of the wheels transfers to the steering wheel. It's also necessary to check if the tires are unevenly worn or if the tire pressure is too low. Sometimes, hitting a small pothole can deform the rims, which is even more dangerous. Don’t underestimate this issue; high-speed shaking can easily lead to loss of control if not careful. My friend almost had an accident because of this before. Later, he went to the shop to get his tires balanced, and the problem was gone. I recommend everyone to test the feeling when the speed reaches around 80 km/h. If the shaking is severe, slow down immediately and pull over to check the tires and rims first. Regular car maintenance is the best prevention.
As a car enthusiast, I often ponder such issues. Steering wheel vibration at high speeds usually indicates problems with the suspension system or wheels. For example, improper tire balancing can cause uneven weight distribution and vibrations. Alternatively, loose ball joints or tie rods can amplify the shaking due to an unstable chassis. Don't just blame the speed—consider the vehicle's condition. Older cars are prone to this, and misaligned new tires are also common. I recommend starting with simple checks: ensure proper tire pressure, and if that doesn't help, visit a professional shop for a balance test. A small investment can fix the issue. Ignoring it for too long can affect braking and even steering safety. When replacing parts, don't opt for cheap alternatives—choose genuine parts for peace of mind.
