What Causes Body Shaking While Driving?
1 Answers
Body shaking while driving is caused by issues in the chassis system, such as wheel imbalance, loose suspension components, excessive steering gear backlash, etc. The details are as follows: Wheel Imbalance: Wheel imbalance is a common issue in many vehicles. During manufacturing, tires and rims cannot guarantee uniform quality, so wheels must undergo dynamic balancing after assembly. Additionally, as tires wear over time, periodic dynamic balancing is necessary. Most manufacturers recommend performing dynamic balancing every 40,000 kilometers. The standard for dynamic balancing is that the imbalance on both the inner and outer sides should be less than or equal to 5 grams, ensuring the wheels do not shake during high-speed operation. Loose Suspension Components: The chassis suspension consists of various links and support arms, connected via ball joints and rubber bushings. Normally, these connections are tight, but as ball joints and bushings wear, the components loosen, causing suspension play. This results in body shaking while driving. Excessive Steering Gear Backlash: The vehicle's steering system uses a rack-and-pinion mechanism to convert the steering wheel's rotation into wheel movement. Over time, wear between the gear and rack creates play, causing slight wheel wobble even without steering input. This wobble translates into body shaking.
