What does a bounce test assess in a vehicle's suspension system?

A bounce test is a practical method used to evaluate the condition and functionality of a vehicle's shocks and struts. When performing a bounce test, a technician applies weight to the rear or front of the vehicle, pushing down hard and then releasing it to see how the vehicle rebounds.

If the shocks or struts are functioning properly, the vehicle should bounce once and then settle back to its original position. However, if the shocks or struts are worn or failing, the vehicle may continue to bounce or oscillate after the initial compression, indicating a loss of damping ability. This test effectively reveals how well the suspension system can control the vehicle's movement and absorb road irregularities.

By focusing on the responsiveness of the shocks and struts, the bounce test provides valuable insights into the overall suspension health, which is crucial for ride comfort, handling, and safety. Understanding this function helps mechanics diagnose issues that could affect vehicle performance, ensuring that repairs and maintenance can be effectively prioritized.