99 F250 4x4 wiring diagram - Ford Powerstroke Diesel Forum
LinkBack Thread Tools Display Modes
post #1 of 3 Old 12-08-2010, 10:45 AM Thread Starter
Powerstroke.org Rookie
Join Date: Oct 2007
Location: Buffalo
Posts: 9
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
99 F250 4x4 wiring diagram

I am trying to trace some troubles I am having with my ESOF 4 wheel drive.
I think it is either the switch, relays, transfer case motor, or encoder.
I was running through the pinpoint checks in the factory manual, but without the right scanner, I seem to be stuck.
So, back to the good old days of track down with meter and schematic.
Does anyone have the portion of the diagram showing the 4x4 circuit?
It would show power distribution box, hi/low relay block, fuse panel, etc.
Also, can anyone tell me which of the 2 relay blocks in the engine compartment is for the ESOF? There is one to the right of the power dist. box, and one in front of it.
Specific issue I am having..... when the selector swith is turned from 2HI to either 4HI or 4LO, nothing happens.
catguy is offline  
post #2 of 3 Old 12-08-2010, 10:49 AM
Compression Ignition Addict
goats's Avatar
Join Date: Mar 2009
Location: Lost in Florida
Posts: 446
Thanks: 1
Thanked 2 Times in 2 Posts
Mentioned: 0 Post(s)
Quoted: 2 Post(s)
Feedback Score: 0 reviews
i would like one for a 01
goats is offline  
post #3 of 3 Old 12-15-2010, 07:57 PM
Powerstroke.org Rookie
Join Date: Dec 2009
Posts: 1
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
my 05 had the same problem where it would not go into 4x4. i took the shift motor right off the transfercase and took it apart the problem was that the electric motor had gotten corroded and broke some wires im trying to find another motor to replace it with but no luck so far and ford wants $700 for a new one.
treit123 is offline  

Quick Reply

Register Now

In order to be able to post messages on the Ford Powerstroke Diesel Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode

Posting Rules  
You may post new threads
You may 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 On
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome