How many fans does a 2.26 GHz 15" 2009 MacBook Pro 5,5 have? I have a 15" MacBook Pro 2.26 GHz purchased in late 2009, model "MacBookPro5,5".

The FanControl PrefPane reports 

Right Fan: -1 RPM


Does this model only have one fan, or does it have two?
Two fans, unless it's a trick question and you consider them blowers :-)

See http://www.ifixit.com/Guide/Installing+MacBook+Pro+15-Inch+Unibody+Mid+2009+Right+Fan/1710/1