My steering seems to be making a bad knocking/clunking noise when driving slowly. I can also hear it when I'm rolling and I turn the wheel back and forth rapidly. What could it be? All the obvious issues were checked out (lugs, suspension components, knock sensor, etc.)

 

check for grease around hte wheel well area, one of ur cv axles might be busted. also check if ur shocks are blown.

BTW knock sensor has nothing to do with suspention

 

I thought my axles were going bad, or I had a bad cv joint when I had the same noise. It turned out to be my wheel hub assembly and wheel bearings. The day before I had them changed my car sounded awful, like the wheel was going to fall off.