I've posted in the past couple months about my on going saga to seek and destroy the ticking noise coming from my upper valvetrain which started at about 14K, I'm now at 28k at it's still there! I initially took it in to the dealer at about 19k and they told me there is an acceptable amount of mechanical noise to be expected. I told them this is my third I-4 cylinder fusion and I have a pretty in depth knowledge of these particular vehicles; such as the bad blower bearing which ford has yet to change that supplier obviously as mine is already starting to squeak in my 2011 fusion. There are no oil level issues, I'm using MotorCraft parts and oil. The noise was first noticable when I started my vehicle then it subsided, that is not the case now. It's always there now taunting me to diagnose it. The motor sounds like a small diesel which is tired and old already. Now some other posts were talking about there ticking being attributed to the fuel injectors? How is that, when a noise is usually mechanical? Are today's injector's mechanical? Others have also told me that it might be the silent chain tensioner. Anyone ever heard of that being the cause of a tick in the upper valvetrain? I have one on my snowmobile and have had to tighten it before but it wasn't becasue it made a ticking noise. Looking for any help here before I have to go back to dealer yet again.