How often does it take for a four-wheel alignment to be done after driving the car?
What is four-wheel alignment: There are calibrated relative installation positions between the steering wheel, steering knuckle and front axle of the car, and there are also relative installation positions between the two rear wheels and the rear axle. , the act of adjusting these two relative installation positions to make them consistent with the vehicle's optimal operating parameters is called four-wheel alignment.
Why are there relative installation positions: In order to avoid this problem becoming more difficult to understand, let me briefly explain that in fact, the wheels of the car are not installed perpendicular to the ground. The wheels all have "camber angles" and "camber angles". "Toe angle", the next time you maintain your car, when the car is lifted up on the stand and the wheels are off the ground, you can look from directly behind and in front, and you can still see it.
A normal car has a "splayed foot", so what are the functions of the "camber angle" and "toe angle"? In one sentence, it can be summarized as: eliminating harmful moments in vehicle driving and forcing the vehicle to travel in the straight direction. This is why when the vehicle is moving, there is always a backing torque on the steering wheel. This is the function of "camber angle" and "toe angle". But is the car's "splayed feet" outward or inward? What's the angle? Each vehicle has different parameters. Regular adjustment of these parameters (that is, four-wheel alignment) is necessary for the service life and safety of the vehicle.
So when should 4-wheel alignment be done?
1. After replacing new tires or repairing a collision accident;
2. One-side wear of front and rear tires;
3. The steering wheel is too heavy or too heavy when driving. Floating and shaking;
4. The car veers to the left or right when driving straight;
But here it comes
Domestic roads are basically high on the left and low on the right , because the floor drain is on the right, so it is convenient for drainage. It is normal for the direction to sometimes deviate slightly to the right, but if the direction feels like it is pulling your hand to the right, there must be something wrong. However, swaying and trembling in the direction cannot necessarily be solved by four-wheel alignment. It may be that the left and right tire pressures are too different or the left and right brake pads are inconsistently worn, causing the shimmy and swaying. If there are no such problems after self-inspection, you need to find a reliable repair shop or go to 4S for inspection.
It is recommended to have an inspection every year or an alignment every 20,000 kilometers.