What Causes Body Shaking?

[Emmett]

Here are the reasons for body shaking: 1. Unbalanced wheels. Wheel imbalance is a common issue in many vehicles. During manufacturing, it's impossible to ensure uniform quality for tires and rims, so wheels must undergo dynamic balancing after assembly. Additionally, as tires wear over time, periodic dynamic balancing is necessary at certain mileage intervals. 2. Loose suspension components. The chassis suspension consists of various links and support arms connected through ball joints and rubber bushings. Normally these connections are tight, but as ball joints and bushings wear, components become loose, causing suspension slackness that leads to body shaking while driving. 3. Excessive steering gear clearance. The vehicle's steering system uses a rack-and-pinion mechanism to convert steering wheel rotation into wheel movement. Over time, wear between the gear and rack creates play, allowing wheels to sway slightly even without steering input, resulting in noticeable body shaking.