What Causes Vehicle Brake Pulling?
2 Answers
Common causes of vehicle brake pulling often include suspension system malfunctions, uneven tire wear, frame deformation, and occasional faults. When braking, the steering wheel pulls to one side, and the vehicle body also leans to one side. This is a highly dangerous braking issue that can easily lead to loss of vehicle control if the driver is unfamiliar with the car's condition or brakes suddenly. Suspension Fault: Damage to the vehicle's elastic components or shock absorbers, or inconsistent metal fatigue in various springs: one side's spring may be severely compressed while the other side's spring is less compressed, leading to uneven vehicle height and brake pulling. Solutions include replacing coil springs, replacing shock absorbers, and tightening loose bolts. Tire Wear: Uneven tire wear inevitably leads to uneven braking. For instance, replacing a single damaged tire with a new one, or replacing a new tire with an old one, or having mismatched tread patterns, models, or brands on the two sides can all cause brake pulling. Before diagnosis, it's essential to check the uniformity of tire wear. Tires on the same axle must have identical brand, model, and tread patterns. Occasional Fault: Brake pulling may also result from a damaged brake caliper. Under the premise that the master cylinder applies hydraulic pressure to each caliper, differences in the pressure received by each caliper lead to variations in the force with which the calipers push the brake pads against the rotors. The imbalance in braking force on both sides causes brake pulling, which can accelerate uneven tire wear, necessitating prompt repairs.
The car I previously drove had a problem with uneven braking, where I could clearly feel the car pulling to one side during braking, which was quite dangerous and uncomfortable. The most common cause is uneven wear of the brake pads. If one side wears out faster than the other, it can lead to an imbalance in braking force distribution between the left and right sides. Brake disc deformation is another common factor, especially after sudden braking or uneven cooling due to high temperatures, which can cause the disc surface to become uneven and affect braking performance. Caliper issues, such as a stuck or inflexible piston, can also cause premature braking on one side. Problems in the suspension system, like damaged shock absorbers or bearings, can affect wheel alignment and worsen the sensation of uneven braking. It’s recommended to regularly check the thickness of the brake pads and ensure tire pressure is consistent on both sides. If you notice any issues, don’t delay—visit a professional repair shop as soon as possible to prevent the problem from worsening and compromising safety.
