There has been a lot of talk about belt or crankshaft driven fans in the 03 and 04 Sedans.
Here is some information I pulled out of the FSM.
The 03 and 04 Sedans were the only Gs with Crank driven cooling fans. They were only found on the A/T.
In the 2004.5, the fans were switched to only electric motor driven.
The FSM also refers to 03/04 A/Ts with electric motor driven fans (two pages one with crank driven and one with motor driven).
This is very interesting, because it adds the possibility of using a factory, direct swap electric fan.
More to come...