hi guys, my 2001 H.O. recently just started making a very weird and awkward noise from the turbo. i recently moved from a lower elevation to the mountains and noticed first that my truck would smoke more,didnt mind at all...anyway today i started it and when i took off i noticed the turbo not sounding normal. it had more of a high pitch scream to it, that seemed like the turbo was spooling up way to fast. there is no popping, any suggestions? its loudest from 3rd to 4th gear when i shift( Manual tranny-6speed)...someone told me the bearings could be going out????