What are the reasons for a car pulling to the left or right?
2 Answers
Car pulling to the left or right reasons are: 1. Unequal tire pressure: Mainly caused by inconsistent tire pressure in the drive wheels. If the left and right tire pressures are unequal, it will result in different degrees of wear between the drive wheels and the ground, and different friction levels will directly cause the car to pull to one side; 2. Abnormal car steering system: This can also lead to the car pulling to one side, such as bending or deformation of the steering knuckle arm or steering knuckle, which generally causes the car to pull to one side; 3. Different tread patterns on both sides: If the wheels on both sides use tires with different tread patterns, or if the tires on both sides have inconsistent wear, this situation will also cause different friction levels between the tires and the ground, leading to the car pulling to one side during braking.
Directional deviation is quite common, my old car used to do this all the time. Most cases are caused by significant tire pressure differences between left and right wheels, or incorrect four-wheel alignment data - especially when the toe angle is off. Suspension system issues could also be the culprit, like when shock absorbers have uneven damping (one side soft, one side hard), causing the car to pull toward the roadside. Last time I checked, it turned out to be a deformed tie rod - the mechanic said this often happens with frequent rough road driving. After replacing the part, the steering feels noticeably more stable now. I'd suggest checking these areas first.
