Why Does an Automatic Transmission Car's Brake Make Abnormal Noises?
2 Answers
Automatic transmission brake abnormal noises can be caused by: 1. Rust on the brake disc or brake pads; 2. New brake pads; 3. Excessive wear of the brake disc and brake pads; 4. Incorrect installation or mismatched model of brake pads; 5. Use of low-quality or overly hard brake pads; 6. Abnormal brake caliper or lack of brake fluid; 7. Presence of foreign objects between the brake drum or disc and the shoe. The function of the brake is to reduce speed or bring the vehicle to a stop. Its working principle involves converting the kinetic energy of the moving vehicle into heat energy through friction between the brake pads and the brake drum, as well as between the tires and the ground, thereby slowing down or stopping the car.
I've been driving for over a decade and have quite some experience with brake noises. When an automatic transmission car squeaks during braking, the most common cause is brake pads worn too thin – they'll start making noise as a reminder when they reach a certain thinness. Another possibility is small stones getting stuck between the brake disc gaps, producing clicking sounds when braking. My car had this issue recently – it made grinding noises during gentle braking, and upon inspection, we found slight warping of the brake disc. It could also be due to improperly secured brake calipers or insufficient lubrication causing abnormal friction. These issues aren't just annoying; they can affect braking distance and pose safety risks. I recommend checking your brake pad thickness immediately when you notice any noise – you can measure the remaining thickness with your finger, or take it to a reliable repair shop right away. During regular maintenance every six months, have technicians thoroughly inspect the entire brake system, including brake fluid replacement. Prevention is better than cure – it helps avoid major problems that could compromise driving safety.
