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Discussion Starter #1
hi everyone
can anyone help, looking from the front of my 2007 nav d40 i have a strange whistling noise / air noise like a baloon coming from the engine. I can't pinpoint it and I am losing some coolant.
has anyone any idea what it could be

thanks
Andy
 

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Discussion Starter #5
thanks
the noise is coming from the egr side of the engine
its driving me nuts
 

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Not sure which side you mean there as the EGR goes from the left side to the right side across the front.
 

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Ah, so the inlet manifold side then?

Can you upload a video of the noise?
What conditions does it make the noise under (at idle, driving, under load etc etc)?
Does it change with revs?
Also, try giving the brakes a few pumps quickly, does the noise change when you do this?
 

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Discussion Starter #9
thanks for your help i will try all those things and get back to you, the noise is at idle
I will try and upload a video. the noise is on the inlet manifold side and I am losing coolent somewhere
 
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