Go Back   Ford F150 Forum - Community of Ford Truck Fans > Late Model F150s > 2009 - Present Ford F150
Sign in using an external account
Register Forgot Password?


Reply
 
 
 
 
Thread Tools Search this Thread Display Modes
Old 11-29-2011, 08:22 AM   #1
Senior Member
 
Join Date: Jan 2011
Posts: 1,630
Mentioned: 5 Post(s)
Thanks: 52
Thanked 228 Times in 149 Posts
Feedback Score: 0 reviews
Default Electronic locking differential 2012

There are other threads about this but they refer to certain models etc.
I thought I would post a new one with the wording straight from the 2012 owners guide. I tlooks like Ford monitors this site and has made changes to keep up with the most popular mods from owners of earlier models.

Electronic locking differential (ELD)
The electronic locking differential (ELD) is a device housed in the rear
axle which allows both rear wheels to turn at the same speed. The ELD
can provide additional traction should the vehicle become stuck. The
ELD is electronically activated by the driver and can be shifted on the fly
within the ELD operating speed range. It is intended for use in mud,
rocks, sand, or any off-road condition where maximum traction is
needed. It is not intended for use on dry pavement.
The ELD is affected by the following conditions:
The ELD will not engage if the vehicle speed is above 20 mph
(30 km/h) in 4x2, 4x4 Auto, or 4x4 High modes.
The ELD will not engage if the vehicle speed is above or 56 mph
(90 km/h) in 4X4 Low.
The ELD will not engage if the accelerator pedal is pressed beyond
50% during an engagement attempt
In 4x2, 4x4 Auto, and 4x4 High modes, the ELD will automatically
disengage at speeds above 25 mph (40 km/h) and will automatically
reengage at speeds below 18 mph (30 km/h).
In 4L (4X4 low), the ELD will automatically disengage at speeds above
62 mph (100 km/h) and will automatically reengage at speeds below
56 mph (90 km/h).
The AdvanceTrac system has the ability to take over control of the
ELD and disable it during driving maneuvers when necessary.
Activating the electronic locking differential (ELD)
The ELD can be turned on by
pulling the 4WD control ****
toward you (4x4 vehicles) or by
turning the ELD control **** from
OFF to ON (4x2 vehicles).
Ford850 is offline   Reply With Quote
Old 12-02-2011, 03:32 PM   #2
Junior Member
 
Join Date: Nov 2011
Location: Beaufort/RTP, NC
Posts: 16
Mentioned: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Default

Thank you. I had asked exactly this question in other threads and searched google repeatedly. This text above is by far the best & clearest answer yet for 2WD/RWD 2012 F150s with the electronic locker option installed.

I assume it goes without saying, but when the switch is OFF, the rear differential acts like an open (aka regular) axle? I think other offerings out there have managed to provide limited slip behaviour full time and then go to full-locking on a switch.
bp78 is offline   Reply With Quote
Old 12-02-2011, 03:40 PM   #3
Just Another Member
 
Theocoog's Avatar
 
Join Date: Jun 2011
Location: New England
Posts: 1,225
Mentioned: 0 Post(s)
Thanks: 78
Thanked 86 Times in 61 Posts
Feedback Score: 0 reviews
Default

56mph in 4L? Boy I'd love to see that!
__________________
2011 F150 3.5L EcoBoost XLT 4x4 Off-Road, 3.73 ELD, 6.5' Bed, Dark Blue Pearl Metallic
Theocoog is online now   Reply With Quote
Old 12-02-2011, 06:22 PM   #4
Senior Member
 
Join Date: Sep 2011
Location: Central Ohio
Posts: 545
Mentioned: 1 Post(s)
Thanks: 18
Thanked 91 Times in 45 Posts
Feedback Score: 0 reviews
Default

Tried mine yesterday in very wet ground. When I pulled in I was sliding all over. Pulled the **** and it was just like being in 4WD. My 2012 pulled straight through the wet stuff, up the slight incline and out on the main road. Wheels never spun.
deerhunter42 is offline   Reply With Quote
Old 12-02-2011, 06:33 PM   #5
Senior Member
 
Join Date: Sep 2011
Location: Central Ohio
Posts: 545
Mentioned: 1 Post(s)
Thanks: 18
Thanked 91 Times in 45 Posts
Feedback Score: 0 reviews
Default

vv

Last edited by deerhunter42; 12-02-2011 at 06:38 PM. Reason: double post
deerhunter42 is offline   Reply With Quote
Old 12-02-2011, 06:38 PM   #6
Converted
 
FirstFtruck's Avatar
 
Join Date: Oct 2010
Location: Southern Michigan
Posts: 457
Mentioned: 0 Post(s)
Thanks: 0
Thanked 1 Time in 1 Post
Feedback Score: 0 reviews
Default

Well that is informative, I looked last night for an explanation on what Two-speed automatic 4WD (4x4) is. It is listed in the brochure for the 2012 F150 as standard equipment on a Lariat, but when you build your own on the Ford website there is no mention of this. I am guessing it is a form of all wheel drive but I am not certain.

Mark
__________________
When its all said and done there is usually more said than done
FirstFtruck is offline   Reply With Quote
Old 12-02-2011, 08:10 PM   #7
Senior Member
 
Join Date: Mar 2011
Location: Prince George, B.C.
Posts: 1,671
Mentioned: 0 Post(s)
Thanks: 0
Thanked 79 Times in 54 Posts
Feedback Score: 0 reviews
Default

Quote:
Originally Posted by bp78
Thank you. I had asked exactly this question in other threads and searched google repeatedly. This text above is by far the best & clearest answer yet for 2WD/RWD 2012 F150s with the electronic locker option installed.

I assume it goes without saying, but when the switch is OFF, the rear differential acts like an open (aka regular) axle? I think other offerings out there have managed to provide limited slip behaviour full time and then go to full-locking on a switch.
Don't assume anything.
The rear axle has a limited slip type function performed by your traction control called "one wheel spin control". It takes care of the open diff symptoms while unlocked from 2011 on and is one reason the locker use is being expanded in 2012.
__________________
2011 FX4 Ecoscrew 6.5 Candy Red
dcfluid is offline   Reply With Quote
Old 12-02-2011, 08:23 PM   #8
Just Another Member
 
Theocoog's Avatar
 
Join Date: Jun 2011
Location: New England
Posts: 1,225
Mentioned: 0 Post(s)
Thanks: 78
Thanked 86 Times in 61 Posts
Feedback Score: 0 reviews
Default

Quote:
Originally Posted by dcfluid

Don't assume anything.
The rear axle has a limited slip type function performed by your traction control called "one wheel spin control". It takes care of the open diff symptoms while unlocked from 2011 on and is one reason the locker use is being expanded in 2012.
Hmmmm... I wonder if the 2012 TCCM will work in a 2011, similar to the 2011 Raptor TCCM... Probably does but without the off-road switch stuff.
__________________
2011 F150 3.5L EcoBoost XLT 4x4 Off-Road, 3.73 ELD, 6.5' Bed, Dark Blue Pearl Metallic
Theocoog is online now   Reply With Quote
Old 12-02-2011, 10:23 PM   #9
Senior Member
 
Join Date: Mar 2011
Location: Prince George, B.C.
Posts: 1,671
Mentioned: 0 Post(s)
Thanks: 0
Thanked 79 Times in 54 Posts
Feedback Score: 0 reviews
Default

Quote:
Originally Posted by Theocoog

Hmmmm... I wonder if the 2012 TCCM will work in a 2011, similar to the 2011 Raptor TCCM... Probably does but without the off-road switch stuff.
I wouldn't pay to try crossing model years. Some have by accident got the wrong part number for their year and the whole truck was non-functional and the part is non-returnable.
__________________
2011 FX4 Ecoscrew 6.5 Candy Red
dcfluid is offline   Reply With Quote
Old 12-02-2011, 10:34 PM   #10
Just Another Member
 
Theocoog's Avatar
 
Join Date: Jun 2011
Location: New England
Posts: 1,225
Mentioned: 0 Post(s)
Thanks: 78
Thanked 86 Times in 61 Posts
Feedback Score: 0 reviews
Default

Quote:
Originally Posted by dcfluid

I wouldn't pay to try crossing model years. Some have by accident got the wrong part number for their year and the whole truck was non-functional and the part is non-returnable.
Oh, I'm all set. I already did the mod with the correct model year TCCM and it works great! I was just curious.
__________________
2011 F150 3.5L EcoBoost XLT 4x4 Off-Road, 3.73 ELD, 6.5' Bed, Dark Blue Pearl Metallic
Theocoog is online now   Reply With Quote
Old 12-02-2011, 10:34 PM
 
 
 
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Electronic Locking Axle. How does it work ? CallMeBean 2009 - Present Ford F150 39 12-26-2011 10:46 PM
Electronic Locking Rearend ???? alee77 2009 - Present Ford F150 0 08-23-2011 01:13 AM
2011 FX2 = No Electronic Differential ??? Can anyone confirm? a_guerrajr 2009 - Present Ford F150 37 07-03-2011 06:53 PM
Electronic Locking Rear Differential Deming 2009 - Present Ford F150 2 02-22-2011 02:19 PM
2009 F150 FX4 only doing one wheel peels?...i have the electronic locking diff... Apex18 2009 - Present Ford F150 13 12-03-2009 03:19 PM

Join F150 Forum

 

The Mustang Source
All times are GMT -4. The time now is 07:31 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Copyright 2006 - 20011 F150forum.com
This site is in no way affiliated with the Ford Motor Company.