Over the years, the weight of the car causes the coil spring to lose some of its tension. This results in a lowered ride height. A ride height check can be performed to see if the height of the car conforms to specifications.

Incorrect ride height affects the camber and toe alignment angles. With a short-and-long arm (SLA) suspension system, the car is designed to ride at a height that minimizes changes in tread width. When the suspension system drops due to sagged springs, the upper control arm is in a different place in its arc of travel. This means that there will be even more camber change during bumps.

Tires will wear faster and handling is affected.

A vehicle that is too low cannot be aligned properly, so this test should be done before attempting a wheel alignment.

Measuring Front and Rear Curb Height 检查后备箱是否有额外重量？ 检查轮胎气压是否正常？ 将汽车放置在水平地面上以便检查。 查看厂家的维修手册看看规定的离地间隙是多少？ 测量并记录右前侧的离地间隙。 测量并记录左前侧的离地间隙。 测量并记录右后侧的离地间隙。 测量和记录左后侧的离地间隙。 与维修手册比较测量结果。