What Causes the Feeling of Deviation When a Car Goes Over a Speed Bump?
2 Answers
When a car goes over a speed bump and feels like it's deviating, it is usually due to loose rear suspension screws. Here are some precautions to take when driving over speed bumps: 1. Slow down: Reduce speed in advance to minimize the risk of scraping the undercarriage and to protect the suspension. 2. Do not go over diagonally: This method increases the stress on the body and wheel suspension, and frequent use can lead to body distortion. 3. Do not drive over with only one side of the wheels: Prolonged use of this method can cause suspension deviation or deformation, as well as uneven tire wear. 4. Ensure both wheels go over together: Make sure the tires pass over vertically to maintain balanced suspension stress. It is recommended to drive over at a speed no greater than 20km/h.
When I drive over speed bumps, I occasionally feel the car swaying and leaning to one side. This could be due to aging suspension components, such as uneven wear on the shock absorbers or springs, which fail to balance the impact on the vehicle body. Tires could also be the issue—for example, if one side has insufficient tire pressure or uneven tire wear, causing the wheels to react asynchronously when crossing the bumps. Loose parts in the steering system, like worn-out tie rods, can also amplify the sense of deviation. I once experienced this myself and later found out during a shop inspection that the left front shock absorber was damaged. After replacing it, the issue improved significantly. I recommend not ignoring such problems, as they affect driving stability, especially in rainy conditions where slipping is more likely. Regular checks on the suspension and tires are crucial—safety comes first.
