Ticking noise 2006 300 3.5
 

I've already had the rocker arms and lifters replaced, when I picked it up it was silent but the ticking came back super fast but now it comes and goes, it's back in the shop with no word yet🤦‍♀️ has anyone else had this happen? What else could it be? It has 85,000 miles on it and I baby it.