When moving the steering wheel back and forth in a commercial truck, the component that should be turning is the steering gearbox or rack and pinion system. This mechanism translates the rotational motion of the steering wheel into lateral movement, allowing the vehicle's wheels to turn. Proper functioning of this component is crucial for steering responsiveness and safety. If there's excessive play or difficulty in steering, it may indicate a problem with the gearbox or related steering components.
Most steering columns will unlock once you put the key in and turn the ignition on. If you are having trouble unlocking the steering, you should turn the steering wheel back and forth with the key in.
Is the steering wheel turned hard against the lock? Try moving the steering wheel back and forth hard at same time turn key.
Try moving the steering wheel back and forth. Usually the wheel locks itself when the key is out so the holes become misaligned
Moving back and forth in time is called time travel.
Your power steering pump and or steering box may be about to give out on you.
To turn the rotary motion of the steering wheel into a linear (back & forth) motion that can turn the wheels.
Have someone rock the steering wheel back and forth as you inspect the steering linkage for loose joints.
Try mooving the steering wheel back and forth. This should release the car from park.
Could be tie rod or steering gear problem.
Bad tire, wheel, bearing, steering component,..............
Moving the wrist back and forth in the frontal plane is known as radial and ulnar deviation.