How should steering components be observed during inspection?

Steering components should be inspected while the assistant rocks the steering wheel because this method allows for a thorough evaluation of the vehicle's steering system. When the steering wheel is rocked back and forth, it can help identify any excessive play or movement in the components such as the steering linkage, tie rods, and rack and pinion. This movement simulates various driving conditions and can highlight issues that may not be visible when the vehicle is stationary.

This technique is essential for detecting wear or looseness in the parts that could lead to steering instability or failure, which are crucial for safe vehicle operation. It also enables the inspector to feel and hear any unusual sounds that may indicate problems, offering a more comprehensive assessment of the steering system's condition.

Visual inspection alone would not be sufficient to detect nuanced issues that may only become apparent under physical manipulation of the steering components. Similarly, inspecting the steering while driving fast would not allow for a careful analysis of the steering system components. Inspecting with the vehicle lifted is also useful, but it would not replicate the conditions under which the steering system operates during driving. Therefore, the rocking method provides the best opportunity to thoroughly and effectively assess the state of the steering components.