What Causes Body Vibration at High Speeds?
2 Answers
High-speed body vibration can be caused by a variety of reasons. The most common causes are as follows: 1. Tire Issues: Problems with tires mainly involve abnormal tire pressure or severe tire wear. Excessive or insufficient tire pressure, as well as significant differences in tire pressure among the four tires, can lead to body vibration at high speeds. For example: Under normal conditions, the front tire pressure is usually around 2.3 bar, and the rear tire pressure is about 2.4 bar. If the right front tire pressure is 2.0 bar and the left rear tire pressure is 2.2 bar, the difference in pressure will cause inconsistent energy absorption and shock absorption capabilities of the tires, resulting in body vibration at high speeds. 2. The Vehicle Requires Wheel Balancing or Four-Wheel Alignment: It's important to note that wheel balancing and four-wheel alignment are two different things.
High-speed body vibrations are really annoying, and I've encountered this issue several times myself. The main causes are usually tire imbalance or uneven wear. Once the speed exceeds 80 km/h, the car starts shaking from side to side, making the ride very uncomfortable. That time when I took it to the repair shop for inspection, they found the front tire treads were worn unevenly—deeper on one side than the other. After the mechanic performed a dynamic balance adjustment, the car became much more stable. It's important to regularly check tire pressure, as having it too low or too high can cause problems. I make it a habit to measure the pressure with a gauge every month. Tire rotation is also crucial; swapping their positions every 10,000 kilometers or so helps ensure even wear and extends their lifespan. Ignoring vibrations not only worsens the driving experience but also accelerates wear on brake pads or suspension components, significantly increasing safety risks at high speeds. It's best to visit a reliable repair shop for a check-up as soon as possible.
