I not to long ago took my truck in to have the valves ajusted. right after it was dun I started hearing a noise like a squealing belt but it was comming from the turboside of the engyn. I took it back and was told that it was the air going throu the turbo (it has changed, the way the air goes thrue the turbo?). Now the noise is gitting real loud and I think that the egyn is going to fly apart.
Has any one ever had a idea of what it might be and why.
