What are the causes of abnormal brake noise during vehicle driving?
2 Answers
Vehicle driving abnormal brake noise causes are: 1. Brake disc or brake pad rust; 2. New brake pads; 3. Excessive wear of brake disc and brake pads; 4. Brake pads installed backwards or model mismatch; 5. Use of inferior or overly hard brake pads; 6. Abnormal brake caliper or lack of brake fluid; 7. Foreign objects between brake drum/disc and lining. Solutions for vehicle driving abnormal brake noise: 1. Apply butter or special lubricant at the connection between brake pads and caliper; 2. Regularly inspect and replace brake pads; 3. Periodic brake adjustment; 4. Avoid frequent brake usage.
I've encountered brake squealing several times, usually caused by excessively worn brake pads where the metal parts start grinding against the rotors, producing sharp screeching sounds. Another common reason is rust buildup on the rotor surface, especially after prolonged parking in rainy conditions - the scraping of rust causes noise. Sometimes small stones or debris stuck between pads and rotors can also create rattling noises while driving. Never ignore these sounds. Continuous high-pitched squealing likely indicates pad replacement is due, as delayed action may damage the rotors and lead to costlier repairs. I regularly check brake pad thickness using a coin gauge - anything below 3mm requires replacement. Occasional mild noise during cold starts might be normal, but frequent abnormal sounds warrant attention. Having technicians inspect the braking system during routine maintenance can prevent many issues.
