I recently bought an "old" 1996 Dodge Dakota. When I turn left in a tight circle, I hear a pop or a click on the front-right side of the vehicle. I was told by the previous owner that it's the CV joint. Sure enough, I was under the car yesterday replacing the idler arm and saw grease sprayed all over the place around the CV joint near the wheel. I didn't inspect it much but apparently the boot is ripped somewhere.
My question is: What makes the joint click? I did a little research online and someone said it's when the grease around the joint goes away and the bearings inside move around. And that when you turn hard, they "drop" and that's the pop you hear. Seems like it's a bit of a stretch that I could hear bearings drop over the noise of the engine. So what causes the clicking noise?