ricky

iTrader: (2)

i,think i ave blown my t4
when driving along there
is a whistleing noise comeing
from the turbo seems to be getting louder
when comes on boost
best place to get it repaired

morto

hi ricky, a whistleng noise normally is not associated with a worn turbo, normaly if it smokes after about 5 mins or smokes alot then its worn , have you checked your impeller, it should have very slight movement from side to side as the impeller floats on oil, but thay should be no movement up and down..

andzz

boost mad

iTrader: (8)

a whistling could also be an air leak

Rab

Sometimes dead turbo bearings give the turbo a whining whistle type noise....

As the guys have said, take the inlet hose off and see if there is play in the shaft.

dannyblackpool

as above, hmmmmmmmmm who could repair if need be