Not being thick but, is it easy to tell if it's the steering rack which is knocking? any way of testing to eliminate it.

Mine is going in for a new strut because of a knocking and they say this should sort it , this part is not covered by the warranty.

I can feel it over bumps through the steering wheel and feels like the knocking is on the driver side. It's not that bad but I can feel it and would like it sorted.