Loud turbo grind on idle down and when shutting off engine.

[Micahbarnard]

Seems to originate from the intake air box. And you can hear it pretty loud through the exhaust as well. Little bit of blue smoke is present as well. No drop in boost or performance.

 

[Micahbarnard]

Think possibly turbo bearing’s going?

 

[SouthernDiesel]

I have the same issue but can’t hear it as loud through the exhaust.