Electric Fan
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JKmotorsports
Rollin the boosted grocery-getter
The easiest way IMO for most people is to use a stock e-fan assembly. Pretty much plug and play. Then all you have to do is program the PCM to turn the fans on at a certain temp.
I did mine from scratch though with everything aftermarket, from the fans, wiring, and thermostat control.
I did mine from scratch though with everything aftermarket, from the fans, wiring, and thermostat control.
danimalmax
Full Access Member
jk when u say stock fan assembly, do u mean they built stock fans for like 05 or 06 tahoes? so i would have to buy one of those or get one off a newer year and put it in mine?
JKmotorsports
Rollin the boosted grocery-getter
Yes sir. IIRC, i believe it was 05 up GM full size trucks when they started using e-fans.
jmildoc
Full Access Member
please point me in the right direction for this I would love to do this to my truck, does it free up some power?
blueflamed03
Elite Member
Volant1
Volant guy
I just installed the purma cool dual fan pack its just a few bolts and a three wire hookup
Key an eye on the e fans. I had several problems with the perma cool fans, the connector that holds the fan to the fan motor's shaft kept coming loose. Perma cool sent replacement connectors, a replacement motor (under warranty) but then the other fan started doing the same thing. I eventually yanked it out and went back to the stock assembly. I was concerned that the fan would come loose and hit the radiator. Ouch!
Volant1
Volant guy
Who are you dealing with, it should be a guy named Mike, this is my fourth fan pack ive never had a problem, If it was just a connector coming loose why not just fab something so it stays tight?
jmildoc
Full Access Member
so you are happy with yours Volant? What did it run you?
Hmm....I read through the links above and didn't get alot of guidance on specifics. Well, I guess I did learn that I could use LT1 or LS1 fans and I need to check out the size of my radiator.
The reason I'm looking into this is because I want to increase gas mileage...and I just like to mod vehicles.
Did you guys notice any increase in gas mileage? Also, explain the PCM thing? Where would I get it reprogrammed?
I saw a direct replacement on stylintrucks but they wanted around $625 and it came with instructions.
The reason I'm looking into this is because I want to increase gas mileage...and I just like to mod vehicles.
Did you guys notice any increase in gas mileage? Also, explain the PCM thing? Where would I get it reprogrammed?
I saw a direct replacement on stylintrucks but they wanted around $625 and it came with instructions.
Volant1
Volant guy
Well fan units are around 450.00, I traded some work for mine but they are worth every penny I saw a 15 hp gain as far as MPG I stopped looking at it once it dropped under 13mpg but it like are motto says save gas OR go fast
JKmotorsports
Rollin the boosted grocery-getter
My entire set-up cost less than $100. I got two new 16" Pro-form fans and an adjustable thermostat. All the relays and wiring I had laying around, but even that stuff is cheap if you had to buy it. I got the fans from ebay and the thermostat control from Autozone.
Now all we need is a "How-to" on this forum and you can do this to my truck while I take pictures. Then the whole forum can benefit.
About going fast, I'm not interested. I've owned a few mustangs and want another one. This truck cannot meet that desire so I'm not going to put money towards that goal.
Volant1
Volant guy
I never said you had to run a fan pack, I just answered your question there are alot of options to doing this I see the OEM pack on craigslist from time to time, you can also buy a wiring kit and a fan and make your own housing http://store.summitracing.com/egnse...94924642+4294908216+4294907940+115+4294924500
tybardy
everyone needs a Hoe
check out the local junk yards man... efans are sure to be laying around as the tahoe/yukon/escalade is a pretty common truck and the efans are in those in 2005 and 2006...
---------- Post added at 03:36 PM ---------- Previous post was at 03:32 PM ----------
here is another option, and the one i am thinking about doing myself...
you can use the LS1 fans like this
ROD_W0QQcmdZViewItemQQ_trksidZp3286Q2em20Q2el1116QQhashZitem1c09a23793QQitemZ120420710291QQptZMotorsQ5fCarQ5fTruckQ5fPartsQ5fAccessories
it will require you to "custom" fit the shroud a bit but i have seen this done on "other" forums.. haha
after that you will need the wire harness and turn on the pins on the PCM
---------- Post added at 03:36 PM ---------- Previous post was at 03:32 PM ----------
here is another option, and the one i am thinking about doing myself...
you can use the LS1 fans like this
ROD_W0QQcmdZViewItemQQ_trksidZp3286Q2em20Q2el1116QQhashZitem1c09a23793QQitemZ120420710291QQptZMotorsQ5fCarQ5fTruckQ5fPartsQ5fAccessories
it will require you to "custom" fit the shroud a bit but i have seen this done on "other" forums.. haha
after that you will need the wire harness and turn on the pins on the PCM
I picked up some fans from a 99 Firebird V-8 in a local salvage yard for around $70. I picked up the harness from Justin at Blackbear for around $80. I haven't put them in yet, but that's the amount I have sunk into this endeavor. Not bad. I'm hoping for a decent power gain and a little mileage boost.
tybardy
everyone needs a Hoe
i would think you would see an MPG boost more then you would see a power gain
jmildoc
Full Access Member
JK How did you wire it up for the fans to come on?
JKmotorsports
Rollin the boosted grocery-getter
I used an adjustable thermostat and two relays (one for each fan). I also wired it to the ac clutch so the fans turn on whenever the ac is on.
Each fan has its own relay and fused power supply. That way if one component goes out, the other fan is still active. The thermostat activates the relays to turn the fans on.
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