97 Tahoe LT 350 Vortec Fan/Clutch Questions!

[El Tigre]

It was never a moment's trouble, but I used a programmable fan controller
from Dakota Digital. It is not clear how one would get the factory PCM to
operate an electric fan set when there was no OEM electric fan option.

 

[L31MaxExpress]

It was never a moment's trouble, but I used a programmable fan controller
from Dakota Digital. It is not clear how one would get the factory PCM to
operate an electric fan set when there was no OEM electric fan option.

0411 swapped then and now run a P59.

 

[wirlybird]

So after running the new fan and clutch it does seem quieter. Before when I used the remote start all I heard was the huge noise from the fan from inside the house.
Now I can hear the engine. Going to check milage to see if there is any improvement. Not expecting it but we'll see.

 

[L31MaxExpress]

So after running the new fan and clutch it does seem quieter. Before when I used the remote start all I heard was the huge noise from the fan from inside the house.
Now I can hear the engine. Going to check milage to see if there is any improvement. Not expecting it but we'll see.

I saw nothing mileage wise with E-Fans myself. Made the decision to go back with a clutch fan even easier for me. I only saw a very slight noticeable power gain at higher rpm in cooler weather when the E-Fans were not having to run continuously. 50 amps on an alternator puts a substantial load on the engine, probably close to 10 hp on its own based off some Engine Masters testing that was done.