The editor recently received a chatter from the base friend. He found that the "little wife" who has not been in business for 3 years has recently run aside and called the 4S shop. The other party advised him to do four-round positioning after understanding the situation. He was very depressed. He only did the maintenance of the four-wheel alignment just a few years ago. He usually didn't go far from work to work. Why did it go wrong? In fact, there are many reasons for the deviation of the car. For example, the tread pattern wears differently, and the suspension system design has problems or the suspension is injured, deformed, shifted, and so on.
(A) Is it necessary to perform four-wheel alignment when the car is off-track?
1. Uneven tire pressure is an important cause of car deviation.
The position of the tires should be changed every 20,000 kilometers, because the wear degree of the driving wheels will always be greater than that of other wheels, and different friction forces will directly cause deviation.
2. Under normal circumstances, the probability of deviation of a new car due to a suspension system failure is very low, because the vehicles before leaving the factory have been strictly tested and adjusted by the manufacturer.