Moving the steering wheel back and forth slightly while an assistant feels for movement at each section of the steering system is the procedure for the​ _______.

The procedure described involves moving the steering wheel back and forth lightly while an assistant checks for any movement or play in the steering system components. This method is known as the dry park test. It is particularly useful for identifying any worn or loose parts in the steering mechanism, such as tie rods, ball joints, or the gearbox itself. When the wheel is moved, if there is any excessive play detected by the assistant, it signifies that there may be some level of wear, which requires further inspection or potential repairs.

Conducting the dry park test in a controlled environment, such as with the vehicle in neutral on a level surface, allows technicians to isolate and pinpoint issues in the steering system without the complications that arise from dynamic driving conditions. This test serves as a preliminary assessment before more in-depth diagnostics are performed.

Understanding this test is crucial in ensuring the safety and reliability of the steering system, as any play or looseness can lead to poor steering response and unsafe driving conditions.