Started my 05 F-250 PSD with no problems this morning. I started out as usaual and then I hard accelerated and then right after that started to hear a whistle sound and the truck sound louder and quite a bit sluggish. I then stopped and started out again but the same problem. I then pulled over and shut down the engine in the hopes the computer would reset, however, I was wrong. The whistle sound comes from my turbo...I think, however, I am not sure about the sluggish and extra noise. I have just put $4500 into replacing various items for a no start for both cold and hot conditions and now with this I am wondering if I should trade it in on newer truck.