What are the symptoms of a warped brake disc?

[StHailey]

The symptoms of a warped brake disc are as follows: 1. Brake shudder: Due to wear or uneven wear of the brake disc, the surface flatness of the brake disc is compromised, causing the vehicle to shudder when braking, especially in older vehicles. 2. Abnormal noise during braking: If a sharp metal friction sound is heard when applying the brakes, it is likely caused by rust on the brake disc, thinning brake pads, poor-quality brake pads, or foreign objects in the brake pads. 3. Brake pull: If the steering wheel noticeably pulls to one side when braking, the main causes are uneven wear of the brake pads or issues with the brake caliper. Immediate inspection at a repair shop is necessary, including checking and correcting the runout of the front brake disc. 4. Brake pedal rebound: If the brake pedal rebounds or pushes back when pressed, this is often due to uneven surfaces of the brake disc or pads, or deformation of the wheel rim.