Started getting a noticeable increase in what appears to be exhaust brake drone and some vibration as truck comes to a stop. Truck runs OK and the noise and vibration only occurs when decelerating.
I removed the EGR crossover tube and it was clean , also just had the EGR valve pulled and cleaned , and while it might be a bit better the problem is still there. There are no codes , not even in memory.
Anyone had similar problem? Truck is scheduled into the dealer Friday but I'm not looking forward to it.

 

Possibly a bad u-joint?? I know my '03 would shake the dash while coming to a stop...all 3 rear joints were completely locked up with less than 30k miles on them. Not sure if the newer trucks are still having u-joint issues or not.

 

I did think maybe U- joints but that's not it. Thanks.
I'm thinking problem with exhaust brake or maybe turbo causing a back pressure.

 

Turns out the problem was a bad rear driveshaft, would not have thought that would go bad in 86m miles.

 

The driveshaft? In what way did it go bad?

 

Sorry, rear driveshaft uni joint.

 

Glad you got it fixed!!