Rattling Noise Behind Instrument Cluster

Snoopdork34

Hey everybody -

Having an odd issue with my 2012 Base 7AT. I have about 10K miles on the car and have had no drivetrain issues on it to this point.

When I accelerate from a stop, and while underway, I hear a rattling noise that increases with increased RPM's. It seems to start around 2500RPM and stop after about 6000. It sounds like a ratcheting, or the noise baseball cards make when stuck in bicycle spokes (did anyone besides me do that when they were a kid?). It sounds like its coming from right behind the tachometer.

Either way I took it to the Nissan dealer and they replaced the whole instrument cluster, and changed the oil. He told me that the shop I took it to must not have used full synthetic oil like I told them to. I picked up the car and for the first 5 miles the sound was gone, but immediate came back.

Sorry for the length of the description but does anybody have any experience with this and know what it could be? I want to go back armed with a little more info before I make ten trips to the dealership on this issue. The car seems to run fine, but I want to make sure I'm not doing any permanent damage to it.

Thanks!