Check the deviation, usually when driving, straighten the steering wheel, and then let go of the steering wheel to see if the car goes straight. If you don't walk in a straight line, you are off the track.
First of all, the deviation may be caused by the inconsistent pressure of the left and right tires, and insufficient tires need to be inflated.
The second possibility is the inaccurate positioning of the front wheels. The front wheel camber angle, kingpin angle or kingpin inner angle are different. Toe toe is too small or negative toe will cause deviation, so you must go to a professional repair station for inspection