Me again. Got more problems with my bloody car. Got a Squealing/Shrieking noise and it seems to happen when the turbo spools up under load around 2000rpm then it goes, it's only squeals for a few seconds then stops. If the car is idling and revved it doesn't do it. I have a feeling the turbo bearings or something in the turbo is shagged. If it is the turbo, wouldn't it make the noise constantly when the turbo is in play?