*UPDATE(9/4/18) :This is a DCT Noise and is currently unresolved. Read through the post for the details. I'll keep this space as current as I can for those following.
Turn up the speakers a bit. I've been having this Groan/hum/vibration that happens ever few seconds while running. It's the womp womp sound you can hear in the vid. It's an 2011 DCT with 90k on it, The water pump and t-stat was replace at 75k.
Any ideas? Thanks guys!