2002 chry. Voyger has front end knocking noise when going over bumps.

Get someone to help you with this: Reach behind the front wheel just rearward of the strut and you'll find a vertical rod that bolts to the strut just below the spring perch and the other end goes to the sway bar. Hold it and get someone to rock the van as hard as they can. There's and astronomically good chance you'll feel a popping in this rod. If you do, you need to replace it. It's called a sway bar link. You'll need 2 of them and the sway bar bushings as well. Spray the nuts on the links down real good with wd40. Hold the back side with a pair of channel locks to keep the ball joints in them from turning. I take the top nuts off first, then the sway bar bushings so I can move that thing around to gain access to the bottom nuts. Then put them back in reverse order. Remember this, if you do it, no matter what anyone tells you, DO NOT lubricate the sway bar bushings. After the first rain, they'll start squeaking and they'll NEVER stop. They are supposed to go on dry.