Change Fan on Left side
30 Minuten - 1 Stunde
The fan on Left side on my MacBook Pro 15" (Late 2008) made noises.
The repair was very easy, took the time to unscrew the fan on the right side at the same time, so I could blow away the dust on the cooling element on the side as well. The repair, all and all took about 20 min. (included the cleaning on the right side).
See to it that you have a bottle of compressed air or something like that, when you make a repair like this. Because you will probably have a lot of dust on the inside of the computer (I was forced to take a walk to my work to borrow a bottle of compressed air there).
Phillips #00 Screwdriver
MacBook Pro 15" (Late 2008-Mid 2012 excluding Mid 2009 2.53 GHz) Left Fan