Which of the following is a common indicator of worn suspension components?

Excessive bouncing or swaying of the vehicle when driving is a common indicator of worn suspension components because the suspension system is responsible for maintaining the vehicle's contact with the road, providing stability and a smooth ride. When components such as shock absorbers, struts, or springs are worn out, they can no longer effectively dampen vibrations from the road surface. This leads to noticeable bouncing and swaying, which can affect vehicle handling and comfort. Recognizing these symptoms is crucial for maintaining safe driving conditions, as worn suspension parts can compromise both vehicle control and tire wear.

In contrast, the other options are associated with different automotive issues unrelated to suspension wear. Sudden engine stalls generally point to problems with the fuel system or ignition components, poor fuel combustion is often linked to issues like spark plugs or fuel injectors, and reduced power steering is typically indicative of problems within the steering system or low fluid levels.