Ok so I've got a 2010 Lincoln MKT with 175000 miles on the clock. I'm pretty sure my right hand side turbo has crapped out on me BUT there's no check engine light, smoke coming out of the tails, or any classic sign of what I would assume to be for a turbo failure. What I do have happening is almost no boost building up and when I go past quarter throttle it sounds like the vanes of the back turbo are scraping, almost like it's jammed up. I can still hear what I believe is the front turbo spooling somewhat but that's about it. Has anyone else had similar conditions when a turbo has gone out?