My sable makes this grinding noise when you turn the wheel early in the morning and late at night. Basically, during cooler temperatures. My power steering fluid is not leaking. I thought maybe something needs to be greased but I cant find anything near the ball joints and rack to grease it.

very few of fords orignal equipment parts in the suspension have grease fittings if your getting a noise the best thing you could do is find the part making noise and replace it

yeah, that would be nice, if I knew what it was...

if it's more of a whining it's the power steering pump. notorious ford problem.