What are the causes and solutions for brake pulling?

[MacCooper]

1. Causes of brake pulling: 1. Uneven tire pressure, tread patterns, or wear levels between left and right wheels. 2. Uneven tightness or individual bearing damage in left and right wheel hub bearings. 3. Inconsistent friction material or varying degrees of wear on left and right brake shoes. 4. Uneven contact area, position, or brake clearance between brake shoes and drums on left and right wheels. 5. Unequal technical conditions of wheel cylinders on left and right wheels, leading to inconsistent activation time or tension. 6. Differences in thickness, diameter, deformation during operation, or surface roughness of left and right brake drums. 7. Collapsed, blocked, or leaking brake lines on one side; air trapped in single-side brake lines or wheel cylinders. 8. Overly tight or corroded fit between single-side brake shoes and support pins. 9. Broken or weakened suspension spring on one side. 10. Leaking or failed shock absorber on one side. 11. Incorrect front wheel alignment. 12. Loose steering linkage. 13. Frame or axle bending in the horizontal plane, resulting in unequal wheelbase on both sides. 14. Faulty load-sensing proportioning valve. Solutions for brake pulling: 1. If the vehicle pulls during normal driving, first conduct the following visual inspections: Check for consistent tire pressure, tread patterns, and wear levels between left and right wheels; inspect each shock absorber for leaks or failure; verify if suspension springs are broken or have uniform elasticity. 2. Lift the wheels and manually rotate them while pushing/pulling the tires. If one wheel feels loose or overly tight, readjust the bearing tightness; if rotation is stiff or produces abnormal noise, inspect the hub bearing for damage. 3. Perform a road test. If the vehicle pulls to one side after braking, the opposite wheel has poor braking performance.