What Causes the Whole Vehicle to Shake While Driving?

[MacTheo]

There are several reasons why a vehicle may shake while driving: 1. Soft shock absorbers. Some off-road vehicles have a higher center of gravity and relatively soft shock absorbers, which can cause a shaking sensation when encountering bumps. This is quite normal. 2. Wheel rim deformation. If your vehicle starts shaking after experiencing significant road impact, it is likely due to damaged or deformed wheel rims. 3. Poor wheel balancing. If the vehicle's wheel balancing is not properly adjusted, it can cause bumps and shaking at high speeds. Here are the checks you should perform when your vehicle shakes while driving: 1. Check the tire pressure. The normal tire pressure for a vehicle is between 2.4-2.6. If the tire pressure is too low, it can significantly affect the vehicle's driving stability. 2. Get a wheel balancing adjustment at a repair shop. If instability occurs at high speeds, it is most likely due to poor wheel balancing. In this case, you need to visit a repair shop to install balancing weights. 3. Inspect the shock absorbers. If the rubber seals on the shock absorbers are damaged, the shock absorber oil inside the shock tubes may leak out, causing the shock absorbers to lose their damping ability. There are several reasons why a vehicle may shake while driving: 1. Soft shock absorbers. Some off-road vehicles have a higher center of gravity and relatively soft shock absorbers, which can cause a shaking sensation when encountering bumps. This is quite normal. 2. Wheel rim deformation. If your vehicle starts shaking after experiencing significant road impact, it is likely due to damaged or deformed wheel rims. 3. Poor wheel balancing. If the vehicle's wheel balancing is not properly adjusted, it can cause bumps and shaking at high speeds. Here are the checks you should perform when your vehicle shakes while driving: 1. Check the tire pressure. The normal tire pressure for a vehicle is between 2.4-2.6. If the tire pressure is too low, it can significantly affect the vehicle's driving stability. 2. Get a wheel balancing adjustment at a repair shop. If instability occurs at high speeds, it is most likely due to poor wheel balancing. In this case, you need to visit a repair shop to install balancing weights. 3. Inspect the shock absorbers. If the rubber seals on the shock absorbers are damaged, the shock absorber oil inside the shock tubes may leak out, causing the shock absorbers to lose their damping ability.

[JulianLee]

I think the most common issues causing a car to shake while driving are unbalanced tires or abnormal tire pressure. I remember one time when I was driving, the car kept bouncing like a boat. Later, a check revealed that the front tires had a dynamic balancing problem—either the lead weights had fallen off or weren't installed properly, causing uneven wheel rotation. Additionally, tire pressure that's too high or too low can also make the car shake significantly, especially when the cold tire pressure isn't adjusted properly during seasonal changes. Uneven tire wear and tread patterns can further exacerbate the shaking. The suspension system shouldn't be overlooked either. Worn-out shock absorbers with poor damping performance or uneven spring stiffness can make the car feel unstable on bumpy roads. Regular maintenance focusing on tires and suspension, along with periodic balancing checks and pressure measurements, can prevent many issues. For safety, it's best to have a mechanic inspect the car as soon as possible.