OEM 05+ Radiator Fans (ELECTRIC)
- Thread starter BlizzardX23
- Start date
Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.
hassoun
Full Access Member
Im getting jealous here. i have a 6.0 2001 Denali would i be looking to get the same fans ? if i call a junkie what do i ask for ? an 065 E-fan with the harness ? or maybe purchase the harness from justin
highrollin113
Undercover
hey i questioned your seller but might as well ask you too, with the harness you bought do you need to have pcm tuned? or is it plug and go. can you explain how easy it goes for you and how to do it, thx in advance, also would ppl suggest this before muffler?
It's actually pretty quick after the AEM, LT's and the Magnaflow install and once I get it tuned and get the fans going it should be hella better. I'm not so sure on boost since I'm running low on funds right now but definitely not out on it.. I do miss that part about the Hoe..
---------- Post added at 07:23 AM ---------- Previous post was at 07:19 AM ----------
From what I understand it is a simple install and you don't need a tune, just need the pin activated on the PCM to control the fans but since I have a tune date with BlackBear in June I'm gonna have that done as well.. According to the Nelson website you can just tap into a couple of wires and the fans will work but I'd rather do it via the proper pins.. I will let you know how it goes..
highrollin113
Undercover
sweet thx, i would appreciate that, i am going with the new muffler tomorrow imgoing to try and research this nelson website you speak of
so your the one who out bid me. i was at work and couldn't get to a computer to bid again. but oh well, congrats
Sorry man. I stumbled upon it 3 minutes before it ended and jumped on it since there was only 1 bid.. Didin't realize someone here was looking at it as well..
have you installed it yet? i've got a harness , but still looking for a good deal on a fan. i found a used one for $120 but it was coming out of a tahoe with 235,000 miles on it, so i decided against it.
Yeah, it's been installed but I have it wired to a switch to manually turn it on til the 1st week of june when I get my BB tune done and the option for the efans on the ECM turned on. Noticeable difference in throttle so far, can't tell on mileage since I've only driven it a couple of times since but I'm sure I'll get a couple more per gallon..
---------- Post added at 07:49 PM ---------- Previous post was at 07:48 PM ----------
235k? Holy crap! That's a lot of mileage..
---------- Post added at 07:49 PM ---------- Previous post was at 07:48 PM ----------
235k? Holy crap! That's a lot of mileage..
highrollin113
Undercover
ok so im going on my hunt tuesday for a wrecker to have a good deal for me so wish me luck, can someone who has done this make a DIY with photos, more so for the harness than for the fans because they seem easy enough to do
also while searching online i found this any idea if it should work fine? Electric Thermo Fan Controller it plugs into the rad fins and turns on at 180degrees and off at 170
how much cfm are the oem fans pulling and how big are the blades
also while searching online i found this any idea if it should work fine? Electric Thermo Fan Controller it plugs into the rad fins and turns on at 180degrees and off at 170
how much cfm are the oem fans pulling and how big are the blades
Last edited:
Rivieraracing
Full Access Member
Anyone know the GM part # for the OEM fan harness?
OmarR
Full Access Member
I PM'ed you, but it's 15912597.
highrollin113
Undercover
question, so i went to the wrecker found fans from a seirra they were 34" apart at the mount and then measured my rad bolts they are 38" so im guessing i have the larger rad am i measuring the right spot, and is it me or 200 from a wrecker seem way too high, i went to local performance shop found aftermarkets, so should i get twin 12"s or do you think that a single 14" cyclone fan enough? it says it blows 2150cfm just like this one i found on ebay http://cgi.ebay.com/ebaymotors/NEW-...ptZMotorsQ5fCarQ5fTruckQ5fPartsQ5fAccessories
Rivieraracing
Full Access Member
The cheapest I've found around here at the wrecking yards for the fans and harness is $350 so $200 doesn't sound bad at all, I would take it if it were around here for sure!!
You can go up to 16 inch dual fans on a Tahoe LS. As a guide, you want the quieter "S blade" (as pictured) fan that draws the least amount of power for the rated CFM
B
highrollin113
Undercover
do you think that a single 16" s blade will be sufficent, i am not sure how much cfm is necessary, this one is 2400cfm
http://cgi.ebay.com/ebaymotors/ws/e...&item=260609461365&ssPageName=STRK:MEBOFFX:IT
http://cgi.ebay.com/ebaymotors/ws/e...&item=260609461365&ssPageName=STRK:MEBOFFX:IT
You want the OEM fans, I have run aftermarket in my other truck and have had some issues out of them. You can find used for under 200 or keep looking cause I got my new one for $250 shipped. Nelson's does a PCM exchange for $35 they ship you a new one and you send yours back within a couple weeks and there isn't even a core charge. That is the cheapest I have found to turn on the pins for the fans.
Tahoe03mm
Full Access Member
I see that you have a BBtune too, Justin can turn the pins on for you too and also they sell a wiring harness over there that's pretty decent. I used it in my hoe
bottomline2000
Full Access Member
so are the depo OEM replacement fans no good? anyone using them? Also do the OEM 07-08 fans fits as well? I've notice some have 10 fins on one fan and 7 on the other. I have my pins turned on, just need to decide on what fans to get. I don't want to end up with worn out OEM if the DEPO aftermarket replacements are reliable.
