What Causes Car Body Shaking at High Speed?
1 Answers
Car body shaking during high-speed driving can be caused by several factors, including excessively high or low tire pressure, which leads to inconsistent tire energy absorption and shock absorption capabilities; severe tire wear; inaccurate wheel balancing or four-wheel alignment data; or poor fuel quality, resulting in insufficient engine power and subsequent body shaking. The specific cause requires further inspection by the car owner to address the shaking issue promptly, as it may pose safety hazards. Excessively high or low tire pressure: Significant differences in tire pressure among the four tires or severe tire wear can cause body shaking 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 inconsistency in tire energy absorption and shock absorption due to pressure differences will lead to body shaking during high-speed driving. Inaccurate wheel balancing or four-wheel alignment data: For instance, after tire repairs, rim deformation, abnormal tire wear, large nails puncturing the tire, or large stones lodged in the tread can disrupt tire balance. Additionally, significant deviations in four-wheel alignment data, especially incorrect front wheel alignment angles or excessive toe-in, can make the vehicle difficult to control during acceleration, causing shaking. Engine issues: These are generally caused by fuel quality or ignition problems. At high speeds and under heavy loads, fuel quality and ignition determine the engine's power output. If either is abnormal, it can lead to insufficient engine power and shaking.
