How to install E-Fans

Discussion in 'Tech Info' started by BlizzardX23, Jan 25, 2010.

  1. TM98

    TM98 Full Access Member

    Posts:
    139
    Likes Received:
    39
    Joined:
    Sep 20, 2016
    Name:
    Tim
    Which one had more blade count? Did it make a difference?
     
  2. bottomline2000

    bottomline2000 Full Access Member

    Posts:
    1,581
    Likes Received:
    793
    Joined:
    Oct 21, 2009
    Location:
    Dallas, TX
    Name:
    Big G
    The newer one had more blades. I think the purpose was to cut down on noise from the fans. Didn't notice a difference in the cooling. I was trying to track down an electrical problem was the reason for the switch.

    Sent from my SAMSUNG-SM-T377A using Tapatalk
     
    TM98 likes this.
  3. bottomline2000

    bottomline2000 Full Access Member

    Posts:
    1,581
    Likes Received:
    793
    Joined:
    Oct 21, 2009
    Location:
    Dallas, TX
    Name:
    Big G
    Here is a video with dyno proven results of the power freed up after converting to efans ..it's cool build since the guy is doing a lsa swap too.


    Sent from my SAMSUNG-SM-T377A using Tapatalk
     
    Austinite and Tonyrodz like this.
  4. Rocket Man

    Rocket Man Sometimes A Dumbass

    Posts:
    8,501
    Likes Received:
    10,325
    Joined:
    Dec 25, 2014
    Location:
    Oregon
    Name:
    Mark
    I'm surprised he got 9 HP, I wasn't expecting more that 4-5.
     
    bottomline2000 likes this.
  5. AltxF4

    AltxF4 TYF Newbie

    Posts:
    27
    Likes Received:
    20
    Joined:
    Mar 4, 2018
    Location:
    Sacramento, CA
    Name:
    Jon
    I keep finding conflicting info when I search the web for coding for electric fans on a Tech2. Many places are saying it is not possible, but the post dates on these websites are from nearly 10 years ago (2009 at the latest). I was wondering if anything has changed since then?
     
  6. Justin

    Justin Full Access Member

    Posts:
    129
    Likes Received:
    44
    Joined:
    May 17, 2009
    Name:
    Justin
    A Tech2 *can* enable it, but only with a VCI from GM. That would be a custom-written software for your vehicle from GM Engineering that is then installed by the dealer. If you can convince them to do it and are willing to pay for it, then that would be an option.

    Otherwise, any custom tuning software can enable that output on most vehicles and we even offer that as a standalone tuning service.
     
    acurasee and MCAT069 like this.
  7. Dan Acosta

    Dan Acosta Full Access Member

    Posts:
    168
    Likes Received:
    32
    Joined:
    Feb 26, 2017
    Name:
    Dan
    Hi, I have was getting ready to buy a new license for my autocal for my "new" 03 Yukon. I had to put it on hold for a little bit while I raise some cash. I do however have a set of fans I want to install, but will need them programmed. Can you give me some info on the standalone tuning for this - until I get the rest of the tune done?
     
  8. adriver

    adriver Full Access Member

    Posts:
    257
    Likes Received:
    88
    Joined:
    Aug 18, 2018
    Name:
    Justin
    Tell me how long that works for you when you're sitting in traffic and its 120 out.









    This was what I read somewhere else too, (that it was a slight redesign to make them quieter, but there was no real change in airflow). If you look up the part numbers for the 05-06 fans, you should see that they are superseded by the 07-13 fans. I read that they do draw more amps but IIRC it was 25 compared to 20. I found a new set of dormans (07-13) for less than $60
     
    Tonyrodz likes this.
  9. bottomline2000

    bottomline2000 Full Access Member

    Posts:
    1,581
    Likes Received:
    793
    Joined:
    Oct 21, 2009
    Location:
    Dallas, TX
    Name:
    Big G
    I never said your truck could function without fans, only that it takes a while for the truck to get up to operating temp just sitting. The quote is a little out of context but whatever..

    I have both generations of fans..1 set from an 05 Yukon and the ones currently on my truck for a `13 Escalade.. there is an improvement in the newer fans..

    Sent from my SAMSUNG-SM-T377A using Tapatalk
     
  10. Rocket Man

    Rocket Man Sometimes A Dumbass

    Posts:
    8,501
    Likes Received:
    10,325
    Joined:
    Dec 25, 2014
    Location:
    Oregon
    Name:
    Mark
    What is the improvement? I'm looking for either better airflow or quieter. I bought a Dorman one, 620654, which had the same blade count as the 620653.
     

Share This Page