2) Have your friend turn the steering wheel all the way to each side. You're now listening for big noises: groans, creaks, and the like. As your friend turns the wheel, your eyes are glued to the major suspension mounting points. Depending on the model, these include ball joints, king pins, control arm bushings, and leading or trailing arm bushings. Track down the source of any noise. The guiding principle here is, "Where there is noise, there is movement, and where there is movement, there are worn or loose parts."