What does a worn out shock absorber typically cause?

A worn-out shock absorber significantly affects a vehicle's handling and ride quality. Shock absorbers are critical components in a vehicle's suspension system; they help control the impact and rebound movement of the vehicle's springs and suspension. When they become worn, they lose their ability to dampen the movement effectively, leading to excessive bounce. This bouncing not only makes for an uncomfortable ride but also contributes to poor handling, especially in turns or during sudden maneuvers.

The lack of control over the suspension's movement means the tires may not maintain consistent contact with the road, thereby reducing traction and stability. This can result in a compromised driving experience, with the vehicle swaying or bouncing excessively over bumps, which can lead to unsafe driving conditions. Thus, the correct answer highlights these adverse effects on the vehicle’s performance.