Tivo304

The reassurance is appreciated. Another 30 days and it still drives and sounds the same. I bought a stethoscope out of sheer curiosity, and can't for the life of me pinpoint it even still. Had it right up against the pan and the noise isn't coming from inside, so hoping it's nothing related to the crank or bearings.

If all hell breaks loose, I'll be sure to close this thread with the mystery results.

Alan Coppage

You might have loose cam chains causing the noises you describe. The chain or chains can hit the cam cover and make strange noises or bucking around on the phasers can do it also. Pretty easy to check. Pop the valve covers off and check them. You did state the noises come from down under but noises can be fickle and resonate all over the place. Good luck.

Tivo304

Thanks for the suggestion, Alan. I haven't popped the timing chain cover off because I simply haven't had the time or the tools to do it, but I'll look into it. Took another video since the noise has progressively gotten more prominent. Figured I'll keep updating this until I find the solution, since so many people has similar problems often. Taking it to Ford tomorrow for an oil change and am asking them for their opinion. (Video w/ noise below)

EDIT: I also disconnected both VCT solenoids, first one, then the other, then both at the same time, no change to noise, so can't be cam phasers or oil pressure related to the solenoids.

red07gt

That is definitely not how a normal 2006 Mustang GT should sound. Sounds somewhat like an exhaust leak.