* Wobbling or pulsating brake pedal: This is a classic sign. When you brake, you feel a vibration or pulsing in the brake pedal. This is caused by an uneven rotor surface.
* Grinding or scraping noise when braking: A rough or scored rotor will create a noticeable grinding or scraping sound, especially at lower speeds.
* Reduced braking performance: While not always immediately obvious, worn or damaged rotors can lead to less effective braking, requiring more pedal pressure to stop.
* Visible damage to the rotor: If you can inspect the rotors (carefully!), look for scoring, grooves, deep rust, cracks, or excessive wear. A significant lip on the outer edge is also a common sign of wear.
* Steering wheel vibration during braking: Similar to the pulsating brake pedal, this indicates a warped rotor.
It's important to note that some of these symptoms can also be caused by other brake system components like worn brake pads, calipers, or even wheel bearings. If you suspect a problem with your rotors, it's crucial to have a professional mechanic inspect your entire braking system to diagnose the issue accurately and safely. Driving with significantly damaged rotors is dangerous.
