If the noise still persists, here are a couple of other sources of clicking.
If there's a little slop in the steering box, it will click when the engine is off, but may not do so when running, because the fluid takes up some slack. Also, check the universal joints in the steering column shaft, and the tightness of the clamp bolts on them. The joints can develop some end play which doesn't show up as actual play in the steering but can still click when you wiggle the wheel.