Howdy Turbo - Welcome to LOST
might want to start with the Noob guide
http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?f=5&t=54207lots of good information and links in there.
generally that part that the filter attaches to - is called a Fuel head (although a couple of older Diesel folks have said Fuel Manager)
the new unit fixes a significant problem - so it's a good idea (and comes with a new filter)
The only moving parts on that are the manual pump and vent valve - so in order for it to be making a noise - you'd have to have a huge air leak (the entire fuel system is a vacuum - from engine to tank) and I doubt that it would run.
I suspect the source of a 'fan like noise' is the other side of the engine - specifically the turbo hoses.
if you haven't put in a Provent or EHM (Noob guide) then the interior of your turbo hoses are coated with oil and they will fail - occasionally with a pop, sometime with a slow split starting at the bottom - generates a air whistle - still runs - but less and less power as the leak gets bigger.
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2005 CRD
stuffSkeptic quod gratis asseritur, gratis negatur