GM Truck Club
THE PREMIER CHEVY TRUCK & SUV FORUM
Founded in 2004 ~ We're the #1 Chevy Truck & SUV Forum.
Silverado & Sierra | Tahoe & Yukon | Suburban & Yukon XL | SUV & CROSSOVER
Results 1 to 9 of 9

Thread: efan swap help

  1. #1

    Default efan swap help

    Has anyone on here done an efan swap? I have a 2000 silverado with the clutch fan, hate the sound and want to switch. Hoping someone could point me in the direction of what i need and a guide on how to do the swap.

    I know i need to get a tune to have the pcm turn the fans on and off when needed, ill need the harness. I'd like to do OEM, so does this mean LS1 fans?

    Im pretty much a noob at knowin what i'm going to need for the swap. I just want OEM efans. Hate the sound of the clutch fan and wouldnt mind the tiny hp's freed up and the noise gone + tiny mpg increase.
    2000 Chevy Silverado 1500 5.3L Z71 - 4x4


  2. #2
    Master Mechanic TritonBoulder47's Avatar
    Join Date
    Nov 2009
    Location
    Tunkhannock, PA (North East)
    Posts
    809

    Default

    All the universal kits come with everything you need, even the temperature switches... I've never heard of a kit not comming with the proper parts you need... But you need to but a KIT, not just a replacement electric fan... You just have to decide if you're going to run a single fan, or a dual fan system...

    Another added bonus is you'll free up some rotational mass on the engine, thus helping it perform more efficiently and thus giving you an HP and MPG gain... It may not be noticable, but it's there...

    Tim a.k.a. Da' Boulder

    2003 Chevrolet Avalanche Z71 - Custom Emergency Response POV

    Firefighter, Fire Policeman, Ambulance Driver, Rescue Tech, Emergency Lighting Installer

    Tint, 20's, Bull Bar, Intake, Exhaust, Billet Grill, Stereo, Custom Console, Emergency Equipment, and the list goes on...

  3. #3

    Default

    Doing swap is not easy thing....if you are not sure about it just go to the dealer he will help you by guiding the right way.......
    paulthomas2

  4. #4
    Legend unplugged's Avatar
    Join Date
    Sep 2006
    Location
    High Deserts of SoCal
    Posts
    2,554

    Default

    The factory fans will set you back a bucket o'green.

    If you are budget minded search the forums for the "taurus fan installation"

    Stay away from any fan kit that uses the radiator core for support. Use brackets to support the fan and a shroud to improve efficiency.
    There is no way to happiness....happiness is the way.:yipi:
    http://kx6ijq.blu.livefilestore.com/y1pcOFVNH4ix1hjyGUVyXK5LRfef7qSeWzlZDorpQhIEfkZ2ZA  _vXMYypuKMJFw671uF2ZPhjez_j-atRmcjM2zQKpQi1JSsB75/burb1.JPG
    High Desert SoCal
    93 K1500 burb (personal) 350 AT 3" Lift 250K+
    02 Honda Civic LX
    Looking for a 1990's Miata for an engine swap

  5. #5
    Sr. Engineer
    Join Date
    Jun 2009
    Location
    San Diego, CA
    Posts
    426

    Default

    Quote Originally Posted by TritonBoulder47 View Post
    All the universal kits come with everything you need, even the temperature switches... I've never heard of a kit not comming with the proper parts you need... But you need to but a KIT, not just a replacement electric fan... You just have to decide if you're going to run a single fan, or a dual fan system...

    Another added bonus is you'll free up some rotational mass on the engine, thus helping it perform more efficiently and thus giving you an HP and MPG gain... It may not be noticable, but it's there...
    The temperature switch operated kits are not as optimal as the OEM drive fans (ie. operated by the PCM).

    The PCM driven fans uses both AC pressure as well as temperature to maintain sufficient flow through both condenser and radiator. It also utilizes the vehicle speed variable as well, which shuts the fans off, at the point where vehicle speed can push more air through the radiator than the fans can by themselves. To go this route, you will need to figure out if you have the larger radiator (should be 38" from bolt to bolt on top) or the smaller one. If you have the larger radiator, I would suggest the OEM 05+ Tahoe e-fans, if you have the smaller one, the LS1 fans will do just fine. As you stated, you would need your PINs turned on in your PCM, and a plug-n-play harness (we sell them) to hook your fans up to your PCM.

    The temperature probe version of the fans takes the temperature from the radiator (in between the fins). It is temperature control only.

    EDIT: here is a pic of mine after install- pretty easy should only take 20 mins.

    Last edited by JennaBear; 12-10-2009 at 07:26 PM.
    Black Bear Performance- Custom Tuning Solutions

    Authorized EFILive and MAGNACHARGER seller

  6. #6

    Default

    Your response was helpful jenna im betting im gonna need ls1 fans. I have a 2000 so im betting its not the 38 inch radiator. Also im not seeing the pic from the post

    Where would be some good places to look for/get fans? Hopefully someone can find me an ebay link of something with legit oem/gm fans.

  7. #7

    Default

    Quote Originally Posted by Tdaz250 View Post
    Your response was helpful jenna im betting im gonna need ls1 fans. I have a 2000 so im betting its not the 38 inch radiator. Also im not seeing the pic from the post

    Where would be some good places to look for/get fans? Hopefully someone can find me an ebay link of something with legit oem/gm fans.

    Just a quick note: That would be a 34" radiator, that is the larger one that the '05 and up will fit. I did the conversion in an '03 Avalanche. If you have a 34" radiator already I've the set I removed along with a Nelson Harness. You are correct you will need a tune for control. What you will also need is a larger Alternator, trust me on this. You are adding a pretty large load. The '05 up trucks went from the 105A to a 145A for that reason. I used a 130A out of a Tahoe and that seemed to work pretty well.


    danv

  8. #8
    Sr. Engineer
    Join Date
    Jun 2009
    Location
    San Diego, CA
    Posts
    426

    Default

    You can either go with a larger alternator, or an overdrive alternator pulley. Depends on what other things are drawing (ie. stereo, alarm).

  9. #9

    Default

    how much does a egan draw? i would love to have one in my truck for more power in the winter, and well summer too

Similar Threads

  1. 5.3 Cam Swap?
    By ajfdirtrider in forum Performance & Fuel
    Replies: 4
    Last: 03-12-2010, 11:04 AM
  2. L92 swap
    By moose076 in forum General Chevy & GM Tech Questions
    Replies: 1
    Last: 01-22-2010, 03:58 PM
  3. 5.3L to D-max swap
    By NKL&DIME in forum GM Diesel & DuraMax
    Replies: 3
    Last: 11-30-2009, 08:28 AM
  4. rear end swap or gear swap
    By rmagni in forum GM Powertrain
    Replies: 4
    Last: 08-18-2009, 07:42 PM
  5. 5.3 to a 6.0 swap
    By 22inSilverado in forum GM Diesel & DuraMax
    Replies: 17
    Last: 07-18-2009, 03:10 AM

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •