What Causes the Rear Wheel to Make a Rumbling Noise on Bumpy Roads?
1 Answers
When a car makes a "rumbling" noise during continuous bumps, it is highly likely due to the lower control arm ball joint. The grease inside the lower control arm ball joint may dry out, leading to internal wear and the creation of gaps, which ultimately results in driving noise. Below is more information about the functions of the lower control arm ball joint:1. Buffering and vibration damping. 2. Transmitting torque. 3. Maintaining vehicle stability, improving comfort and safety performance. 4. Guiding role. It works with the suspension system to adjust camber and toe-in, allowing the vehicle to achieve certain steering angles. 5. Enhancing tire grip for better handling, providing the driver with a superior control experience. 6. Bearing and transmitting loads from various directions, mitigating impacts or changes in vehicle position caused by braking, road conditions (uneven surfaces), acceleration, or steering.