Hi all,I have posted this problem I have in another part of this forum but I recon I have got it back to front,so I will start again.First my ride 2001 gu 3 ltr turbo diesel approx 190000 km.Problem, the motor started to make a loud squealing noise. It seemed to be coming from the turbo.Had a few mates listen to it and was told bush's in turbo short.Replaced turbo but noise still there.On start up can here it a little then on idle it goes away,add a few revs and back it comes.I have been reading a little on egr probs that the 3.0ltr has and was wondering if this may have anything to do with my problem.also have oil showing on itercooler does this mean that it will have to be replaced.