Possible turbo failure??

Audi_A31.8T

Registered User
Ok haven't posted in while as was having some serious boost issues any way after a few emailed to badger 5 ltd (top guy) I fixed my boost issue was a weak fuel pump woohoo cars fixed but after a short run around the bloke my car started to squel almost like turbo squel it was doing it on acceleration an de-acceleration went back to my garage left the car idle no noise gave it some acceleration and it would squeal but then after 5 or so minutes as I was about to make a nice movie of the noise it wouldn't do it revved it up and no noise. My aux belt has some crack in it and prob does need changing could that he the noise or is my turbo fck?
Any help would be great
 
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