What are the reasons for a car feeling shaky while driving?
2 Answers
The reasons for a car feeling shaky while driving are: 1. The tires are misaligned or the tire balance is poor; 2. The tire balance weights have fallen off, and it is necessary to check the dynamic balance or four-wheel alignment. If the vehicle does not pull to one side, performing a tire dynamic balance should suffice. It could also be that the wheel rim has been deformed due to external impact and needs to be inspected and repaired at a maintenance shop; 3. Another possibility is that the drive shaft is deformed and unbalanced, a situation more common in vehicles that have had their chassis collided. Wheel Balance refers to the front wheel alignment, one of the inspection items for tires. If the tires are unbalanced, it can cause the vehicle to sway left and right or bounce up and down while driving, leading to steering wheel vibration, making driving and riding extremely uncomfortable. It is necessary to attach heavy lead weights to both sides of the steel rim to balance it.
Vehicle shaking while driving is quite common, and in my personal experience, tire issues account for the majority of cases. The most frequent cause is unbalanced wheels—either lost wheel weights or trapped pebbles can make the steering wheel shake like holding a drill at high speeds. Significant differences in tire pressure between left and right sides can also cause instability, making the car wobble. A deformed wheel rim is even worse; hitting a pothole without slowing down can damage the rim, causing the wheel to wobble when rotating. Misaligned wheel alignment is more troublesome, leading to uneven tire wear and not just shaking but also ruining the tires. Before long trips, I always check these issues—a roadside shop can test them in half an hour. If you encounter shaking, first check the tire pressure, then listen for wheel noises, and if necessary, perform a balance and alignment. This usually solves the problem.
