fatforbes Posted February 11, 2009 Share Posted February 11, 2009 my 300tdi 90 has developed this weird noise at high revs which I think is probably turbo related but im not too sure. I can hear the turbo whistle and then as I push through the revs i hear this sound which sounds a bit like a belt saw cutting wood or a toothed belt rubbing, hard to explain, but its high pitched. the odd thing is i can only hear it whilst moving, if i rev when stationary I cant hear it at all just the turbo whistle. my intercooler does have a tiny hole in it and thought it could be that? any ideas? Quote Link to comment Share on other sites More sharing options...
western Posted February 12, 2009 Share Posted February 12, 2009 seal the hole then see if it makes the noise, any leaks will create a whistling noise Quote Link to comment Share on other sites More sharing options...
dipstick Posted February 28, 2009 Share Posted February 28, 2009 seal the hole then see if it makes the noise, any leaks will create a whistling noise Hi, I have the same fault which was diagnosed today by Safari engineering as a pin hole in an intercooler hose or a hole in the intercooler itself. Good luck Quote Link to comment Share on other sites More sharing options...
Mirand4 Posted November 27, 2012 Share Posted November 27, 2012 I can see this is an old post..... my 300tdi has exactly the same noise! Just wondering if you discovered what it was? Many people describe a whistle with a split pipe..... but it reminds me of a circular saw and not a whistle (more trumpet!)! Any help most gratefully received! Quote Link to comment Share on other sites More sharing options...
Off Road Toad Posted November 27, 2012 Share Posted November 27, 2012 The manifold gasket can make a noise like a reed whistle if blowing, like a sort of flapping sound. Steve Quote Link to comment Share on other sites More sharing options...
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