..my YJ runs on some 85.000 miles, I also hear that diesel-like knocking (vaguely for now) but as I can see, that's a normal thing on these I6 engines.
Now I hate when I hear a new
sound after I get used to the first one.
Whenever I run over a pothole or climb up the hill (when my jeep gets some rattle), I can hear a small "tick-CLICK" from under my wrangler in a rapid succession (sounds almost like the sound of the front driveshaft in the video down this page). It doesn't repeat often but whenever I run over a bump or pothole - I can hear it.
Anyone experienced this before?
All I found was this similar case from a guy owning a TJ automatic (my guess it is only evident on automatics?)
Jeep TJ Transfer Case Shifter Knocking TSB
P71356 Image Large Photo
Other than that -- is this normal behavior for front driveshaft? (video)