Hi guy's my 07 focus 1.8tdci is doing my head in. Every time I accelerated it made a loud whistle noise, then the turbo went so I replaced it with one from a scrapped car (Oil flush etc carried out). The turbo from the scrapped car started to whistle too when I accelerate or just as the turbo kicks in. So anyway I got the bad turbo reconditioned and bought a new oil line. Just finished installing it and guss what .... the whistle noise is still there. Can anyone give me some guidance on this?