ihad the timing chain replaced but it is still making a loud ticking sound. ??

What did the mechanic that did the work say it is?

does it run mints ,maybe you change oil or yeah ,it might have to be tightened ,there might be no way of tighten ,i not sure if pluger type tensioner..

It should have an auto tensioner, maybe it's something else.

I would suspect that the oil isn't being changed every 3K, possibly that Mobile One full synthetic is not being used, as it is written on the oil cap.