E-Fan controller option

[scottminor]

Does anyone know how to re-create the fan controller on a 2500HD?

[[__--MUD--__]]

There isn't a seperate controller, its built into the PCM.

Having issues?

[scottminor]

What is the part numbers for the GM black box?

[[__--MUD--__]]

You need to be a little more specific...You mean the PCM?

The PCM in your truck right now is capable of controlling the electric fans. You will need to run some additional wires from the electric fans to the PCM as the H2's never came w/ that. I have no clue if the programming is even setup in the stock tune. You're going to have to talk to a tuner, they would know.

As far as specifics...if you have already searched the forums, I dont ever remember any documented how-to's on this. I'd head over to performancetrucks.net and look for some of the other guys doing this to the pickups.

[scottminor]

In the fuse box next to the battery, there must be some wires underneath and some relays and fuses on top. I know the PCM wire must exist under it, I want to get the GM parts that plug into the fuse box and run back out to the fans. I just don't know what those Delphi/Delco part numbers are.

[[__--MUD--__]]

http://nelsonperformance.com/products.htm#fans

You are not going to gain anything w/ that truck fan setup, you need to find LS1 fan setup out of a camaro/firebird....higher flow numbers

The only advantage I could see running electric fans is if you plan on going through some deep water.

If you are running hot, forget about all this bull**** and just buy a Ron Davis radiator. That will completely eliminate all temp problems.