I recently had my car repaired after a recent rear and accident and I noticed something staring right away. My turbo sounds like their is something rattling inside the turbo sometimes but it does go away. So if I accelerate for maybe 30 seconds and let go of the gas I hear the BOV release air but then I hear a click or clank noise and then the car is extremely sluggish and I don't hear the turbo taking in any air but it makes a screaming type of noise but if I let it idle it does go back to normal. Does anyone have any idea of what it could possibly be? If anyone needs any other information from me I would be glad to answer any questions. I appreciate the help ahead of time!