Read about some of the common causes for regular or electric steering problems.
A wobble in the steering wheel feels like the wheel is shaking to the left and right. This may get worse the faster you are driving. Almost feels like the wheel has a mind of its own. If severe enough, then it may feel like like it wants to jump right out of your had.
There is some noise in all power steering systems.
One of the most common is a hissing sound. The hissing sound is most evident at standstill parking. A hiss is a high frequency noise.
The noise is present in every valve and results from a high velocity fluid passing over the valve orifice edges.