Called Allen and he told me how they are supposed to work. I want to thank everybody for helping me. And Allen Nelson is the truck God!!!!

 

Cool deal man, glad you got it figured out!

 

So what was the total cost of the fans and harness and all that fun stuff? been thinking of it for mine, but thats as far as its gone... im assuming your using 05 fans? i saw that they have them stock, just wondering on cost of the fans, harness, and tune?? thanks

 

The 05 Efan route can be pricey, but it's well worth it IMO. If you go with the 05's, you'll have to upgrade to a 34" radiator, as the pre 05 non-HD trucks have a 28" radiator. Here's a link to creederado's efan write up, and a quick list of prices that I paid and that I can think of: https://www.performancetrucks.net/fo...+official+2005

*05 Efans, complete new factory take-offs from G&R Auto Parts: $220 shipped
*New 34" radiator from the Radiator Barn.com: $265ish shipped
*New plug and play harness from Nelson Performance: $100 shipped
*Retune PCM to accomodate Efans: $0 to $500, depending on who you go with, if you have tuning software, or if you already have a custom tune with free lifetime updates, or if you get a full custom tune including efan operation (cost me $50 since I already have a PCMforLess tune and updates are $50)

Optional:
*145amp alternator (many have done the efans with the factory 105amp alternator w/o any problems): $100 shipped from G&R Auto Parts
*Longer engine belt for 145amp alt (GM PN 12576451 ): $30ish
*160* thermostat (I did this and had the fans programmed to come on at 180* and off at 173*, but you can use the factory stat and have the fans set to a higher temp): $60ish shipped from SLP
*New coolant if necessary

I think that about covers it

 

$124 for the LS1 fans
$90 for the harness
need a tune to turn the fan setting on.
figure like $10 extra for hardware and steel flatbar peices to use as mounting brackets.

i didnt buy an alternator or anything. just that stuff above. i have a tow package so i already have a 34" radiator. happy hunting!

 

dont know if this is directly related, but my friend put in a fan shroud switch and it just overrides the pcm. its just a switch and it turns both fans on either low, medium, or high.

 

I dont want to deal with that crap everytime i turn my truck on and i already had a nelson tune so it worked out perfectly. Wait4me tune is cheap so if you dont wanna deal with it then just do get go that route.

 

hey, hook up a relay to provide a ground as the pcm would. Itll turn on whenever the truck is running. This is the route I went for now, I need to get it retuned though so they will work right. I can show you this weekend.

 

doesn't the 145 amp alternator use a wider belt? Or can you use the normal one? when I bought belts for my truck it listed belts for both alternators

 

Same width, just longer...glad you mentioned that, I neglected to add it to the shopping list I made in post #24. The link to creed's write up should have the belt part number