1.9JTDm Turbo noise ?
On my 16v oil burner, on very very (almost no throttle) from about 1600rpm to 2000rpm I get a noise like a dolphin chattering. Only get it if I am just slightly on throttle and then hold or lift off. If I floor it, the sound doesn't occur.
Now before lots of you say the turbo is about to destroy itself, I've had the car nearly 5 months and done just over 17000....yes.....17000 miles in it and the car has always made this sound. Doesn't use oil, doesn't smoke, even on full throttle at 4500rpm and averages over 50mpg with my often lead footed (Clarkson) style driving, so not worried about the turbo condition.
I was thinking it may be related to the intake plate opening and shutting. The car doesn't make the sound when stationary, only when on the move and it's definately turbo/boost related.
Any ideas folks ?