It may also be the gas tank vent system. If you open the filler flap is the noise coming from the grommet?
http://forums.rennlist.com/rennforums/996-forum/566676-ever-replace-the-fuel-tank-vent-valve.html
If it is a fan it is one of your cooling fans. Do a google search on 996 cooling fans, or cleaning the radiators.
http://www.pelicanparts.com/techarticles/Boxster_Tech/32-WATER-Main_Radiator/32-WATER-Main_Radiator.htm
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2013 991.1 Carrera S Cab
2004 996 Turbo CAB X50 sold
2003 996 cab 6 speed Sold
1972 RS 3.2 twin plug short stroke crank fire, roll bar, sold
DE instructor since 1985
Last edited by FPB111; 04-21-2012 at 01:21 PM..
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