Hi, I am experiencing a similar problem. Some months ago and after reading similar experiences other forum postings have had, I replaced the fan belt tensioner believing that the bearing was the fault. Well that didn't work but later the sound eventually disappeared. This has re-emerged particularly during a cold engine. Once the engine has warmed up or a couple of minutes running, the sound disappears.
geeyoutoo, can you identify or recommend a procedure what you have as I am somewhat relieved I may not have a turbo problem. I have found that the squeal will disappear after applying some throttle.
Thank you, Barry