Which indicator suggests that steering components might be worn or faulty?

A knocking or clunking noise when turning the wheel is a significant indicator that the steering components might be worn or faulty. This type of noise can originate from various steering components, such as tie rod ends, ball joints, or even the steering rack itself. When these parts begin to wear out, they may not secure themselves properly, leading to looseness and the resultant noise when the steering wheel is turned.

This symptom is especially concerning because it suggests that the integrity of the steering system may be compromised, which can directly affect vehicle handling and safety. It’s crucial for technicians to diagnose the source of the noise promptly to prevent further damage and ensure the vehicle operates safely.

The other options, while potentially linked to steering or suspension issues, do not specifically indicate faulty steering components as clearly as the identified noise. Unusual tire wear can result from misalignment or suspension issues, increased road noise may be associated with numerous factors including tire condition or road surface, and steering wheel binding may indicate lubrication issues or other specific conditions, but none is as direct a warning of worn steering components as the noise described.