Jeep valve adjustment

Just wanted to know how to adjust the valves on a 2000 jeep grand cherokee limited with a V8. noticed a slight ticking sound from the valve train not too long ago. Oil has been recently changed and pressure is good.

I suspect the valves on this engine are not adjustable…How many miles on this engine??

around 145,000.

Caddyman, I believe you are right!!