What is the reason for the direction of the car?

1. The pressure values ​​of the tires on both sides are not equal or the surface patterns of the tires on both sides have one high and one low, which makes it difficult for the vehicle to drive in a straight line; 2. The quality of the steering system will also directly hit the vehicle 3. If the new car deviates, it is likely that the suspension system is faulty. If the vehicle deviates, the main solutions are: 1. Manually reposition the 4 wheels of the vehicle by yourself, but the biggest disadvantage of this method is that it is likely to be unprofessional adjustments, resulting in no change or 2. Adjust the steering rod of the vehicle, because it is a crucial part of the entire steering structure, and it plays an important role in the stability of vehicle handling, the safety of operation, and the service life of tires. It plays a decisive role. Once the steering rod is unstable, it will cause the vehicle to shift, so the owner only needs to "screw in" or "screw out" the base to adjust the height.