Front-end knocking noise
 

Hi folks:

I bought a used 2020 Jeep Cherokee Latitude on 11/04/2021. At that time, the vehicle had about 31K miles on it. After driving it for a few weeks, I started to hear a "knocking" noise coming from the front end. (The noise is heard mostly when backing out of a parking space). I've now taken the vehicle to the local Jeep dealership about a dozen times. (Yes, a dozen times). Over those dozen visits, the service dept. has replaced the left strut, brake caliper, part of the axle, and wheel bearings. In short, they've never even isolated the problem, they've just thrown all sorts of parts at it...Extremely frustrating(!), as the noise is still there.
I'm up for all suggestions that can be provided. I'm at wit's end here...and just hoping someone, er anyone, can make suggestions on what might be causing this knocking noise.

Thank you!

Bob