Turbo Squalling
 

I have a 2008 F350 SD Lariat (SRW) 6.4 Turbo Diesel. Mods are: Cold Air Intake, DPF/CAT delete pipes, running an H&S XRT Pro tuner. Used mostly for pulling 28' camper and 22' pontoon boat.

I was just about to work (6 miles one way) when a squalling noise started while giving it throttle. It sounded just like a loose belt but it was the gaskets between the turbos. My mechanic changed those out but it still makes the squalling noise when giving it throttle. Any suggestions would be appreciated as it's been down almost two months.