What are the reasons for car shaking during braking?
2 Answers
Car shaking during braking can be caused by: 1. Worn brake pads; 2. Unbalanced wheel alignment; 3. Deformed wheel hubs; 4. Vehicle ABS system intervention; 5. Dislodged tie rod ends or loose fixing bolts of the lower control arm, etc. The braking system is a crucial component for daily driving safety, and any issues with it can significantly impact driving safety. It is recommended that car owners promptly visit a repair station for inspection and maintenance when experiencing brake shaking to prevent traffic accidents caused by brake problems. Additionally, car owners should avoid speeding during daily driving, decelerate in advance when necessary, and refrain from harsh emergency braking.
Last time I drove long distance, the steering wheel shook like a phone vibration when braking, so I went for a check immediately. The mechanic said the most common cause is warped brake discs, especially after frequently driving on mountain roads or going through water, which can cause high temperatures and uneven disc surfaces. Uneven wear on brake pads can also damage the discs, and frequent hard braking may lead to hard spots on the disc due to overheating. By the way, if the steering tie rod ball joint is loose or the control arm bushings are cracked, the entire suspension wobbles during braking and transmits the vibration to the steering wheel. Now that it's hot, extra caution is needed. My friend’s car recently had a stuck caliper piston, causing one-side brake pads to overheat. It’s recommended to check the disc runout immediately—if it exceeds 0.05mm, the discs should be resurfaced or replaced.
