I have a 2007 Kia Rio, only 38k miles on it. Car has run great since I got it. Today I noticed a constant ticking noise coming from the top part of the engine as highlighted in the picture. Thats not my actual car, but it is the same engine. I thought it went away when it warmed up but its present while driving as well. I just had the oil changed and it looks like its overfilled (cant tell, too dark outside atm and no lights, too hard to tell with just a flashlight). Can this cause that noise? I'm going to take it back to the place I got it done and ask them but its driving me crazy as I cant find any solid info online. Any help or advice is appreciated.