Just got factory Efans
 

Just scored some factory electric fans from the junkyard for $145. Great deal for up here. :chevy:

http://i989.photobucket.com/albums/a...0005Medium.jpg
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I've already got them all installed and working. I built my own wiring harness off of a wiring diagram for the factory electric fans from 05+ trucks. It uses 3 relays which are switched off of the PCM via pin 42 and pin 33. I setup my tune with HP tuners and set the turn on and off temps of both the fans and the AC pressure on off temps so the fans kick on when the A/C is running. So far so good! :chevy:

Re: Just got factory Efans
 

hi i just came into a set of fans like the ones you have. i was woundering if you can give me a few more detailes on how to make a wiring harness for it and set them up i have a 2000 silverado thanks

Re: Just got factory Efans
 

what kid of vehicle did those come out of im looking for a set like that to make fit in my truck thanks

Re: Just got factory Efans
 

those came on the '05 and up trucks. I use a set of fans from an ls1 camaro.

Re: Just got factory Efans
 

Here's the wiring diagrams I used to build my harness. The last one is the one I used, the fans are controled via pin 33 and pin 42 on the pcm. Research it on performancetrucks.net there tons of info on this swap there. Couldn't have done it without reading everything on that site.

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Re: Just got factory Efans
 

i though they also cam on 02 and up tahoes

Re: Just got factory Efans
 

Great score! I really dig those fans used on the later GM trucks.

Re: Just got factory Efans
 

I'll have to look into some of these for my 01 Hoe, not only for performance/mileage, but also because my A/C doesn't work all that well when sitting at a standstill.

Re: Just got factory Efans
 

It's a great upgrade for sure! I think I read that some of the trucks like your tahoe might have the narrower radiator 28" I think? So the Efans might not bolt on unless you swap to a different one, I think 32", which comes standard on the SS models and HD's I think. I think thats what I read at least might want to check into it though, as they sure look nice under the hood. Looks completely factory! :chevy:

Re: Just got factory Efans
 

Thanks for the info, I'll look into it.

Re: Just got factory Efans
 

that is correct. they did use a bigger radiator for the factory efans

You'll need the 34" Radiator from 05+ trucks or 00-04 2500 series trucks