Manifold then might want machining
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Manifold then might want machining
Have a look where the dump pipe meets the turbo, mine split along the weld
holding the flange on, about where your EGT bung is.
Thinking that your EGT probe isnt loose is it???
I reckon a boost leak.
Sounds very very similar to a squeal I had a couple of years ago which was a loose clamp on the crossover pipe.