need valve adjustment specs and actions that go with it, if any, thanx. on 2000 Jeep Wrangler

knocking noise from engine, especially after the engine gets warm.

Asked by for the 2000 Jeep Wrangler
The 2.5 L engine has hydraulic tappets. There is no adjustment . You may have a defective tappet or are hearing the knocking noise from another source, possibly carbon buildup on pistons, piston slap, or lower end bearings.
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I also have this same issue. What did you find out? I would sure like to know as I am leaning towards listers or valves Thanks