What is a common sign of a broken coil spring?

A visible gap or abnormal height difference in the vehicle’s stance is a classic indicator of a broken coil spring. When a coil spring fails, it may either break completely or deform, leading to the spring being unable to support the weight of the vehicle properly. This results in one side of the vehicle sitting lower than the other, causing an uneven stance that is noticeable when observing the vehicle from a distance. Additionally, improper height can affect alignment and handling characteristics, which could lead to further complications if not addressed.

In contrast, the other options reflect conditions typically associated with functional or improved suspension systems rather than the failure of a coil spring. A smoother ride, increased fuel efficiency, or improved cornering stability are not consistent with the signs of a broken coil spring, which typically leads to a rougher ride, potential instability, and diminished performance. Understanding the relationship between suspension components and vehicle stance is key in diagnosing issues like a broken coil spring.