Could be a broken lifter or something along those lines. Will need to pull valve cover and visually inspect.
worn, lose rocker arms
if it sounds like the knocking is coming from the bottom of the engine i would bet it was the rods or rod bearings may be worn. if the knocking is on the top ,then i would have the lifters and or the rocker arms checked.
The main indicator of a broken or loose rocker arm in any engine is a loud knocking or rattling sound. It can also cause smoke and the engine to run roughly.
Driving at 50mph or above what causes a loud knocking clicking sound during acceleration?
if the engine is knocking really loud you probably need to overhaul the entire engine or get a new or used engine because loud knocking is not good
A loud knocking noise in the motor of a car at high speeds is most likely the engine. There could be another issue with the transmission if the knocking only happens at high speeds.
Rocker assembly 135ftlbs rocker box or housing is 35ftlbs
No
Not that familiar with Jeeps, but you could have a collapsed lifter, or you might have a rocker arm out of adjustment.
bums
you may have a rod knocking and you need to take it to a shop asap
Sounds like you need to check the rocker clearance. Valve adjustment. Hopefully there is nothing broken. You will have to remove the cover to inspect. Do it asap.