How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask HDGENE Your Own Question
HDGENE, Ford Senior Master/Diesel/Trans
Category: Ford
Satisfied Customers: 5506
Experience:  25 years Auto experience, Ford ,GM, Chrysler, Asian & European
Type Your Ford Question Here...
HDGENE is online now
A new question is answered every 9 seconds

I have a 2003 ford f350 4x4 diesel.i have no power to my

Customer Question

i have a 2003 ford f350 4x4 diesel.i have no power to my esof.i replaced everyhting from gen to shift motor all relays and all fuses good. but only have power to the lite in the esof. no other wires are which wire going to the esof should be hot?
Submitted: 1 year ago.
Category: Ford
Expert:  Jeremy replied 1 year ago.

My name is ***** ***** I will assist you with your question today.

I'm an independent contractor and I don't get paid until a rating has been made.

We can go back and forth as needed to help resolve the issue you are having. Follow ups are free after ratings, so rate in confidence!

When you replaced these items, did you program them back on the truck? If the programming isn;t set on the GEM, it will not send power to the 4x4 module. It will act as if the truck is a non*****vehicle. Rule that out first for it will save a lot of headache and wire chasing.


You want a 5 star service and I want to provide a 5 star service. Please consider that I don't know your skill level as well as I can't see, touch, smell, hear the vehicle/machine in question. Please provide as much detail as possible and I will provide as much back.

Once an answer is provided, you should see a rating screen. Please rate my personal service to you. The ratings are my personal feedback,

they are not the site feedback.

Thank you for allowing me to assist you through Just Answer!


Customer: replied 1 year ago.
All was done, all I want to know is which wire is the hot feed so I can trace it back to the fuse block. Ok? Thank you
Expert:  Jeremy replied 1 year ago.

Sure, I can provide that.

I sent the offer for the diagrams. There are 6 total for the ESOF system.

Customer: replied 1 year ago.
I don't need another diagra please, what color ? Blue and white , med blue , or lite blue? Thanks
Expert:  Jeremy replied 1 year ago.

I will opt out.

Have a good day.

Expert:  HDGENE replied 1 year ago.

Hello, let me ask a few questions. The 4x4 control module controls the transfer case shift motor, im not sure what you mean you you say you replaced the GEN. You also replaced the 4x4 control module? Will the 4x4 lights come on when the key it turned to on and start and go off(prove out like the other warning lamps)? Do you hear the transfer case engage into 4x4 high or low? Do the indicator lamps indicate a 4x4 engagement?

Expert:  HDGENE replied 1 year ago.

Hello, do you need more help with this concern?

Customer: replied 1 year ago.
nothing happens,no lite on dash ,no shift motor movement.nothing. the only power i have coming to the esof is for the lite in it.the relays for the vacuum pump are good and do actuate the vacuum pump all the fuses are good checked on each side with a test lite. i dont know what else to check. the rest of the options in the truck work perfectly.I was told its possibly the fuse box but i am tired of throwing parts at it.this is exactly what it did before i changed the shift control motor and the gem .I have made no real progress. i had it to a local ford dealer and they tried throwing parts to.and nothing helped..Thats why if i seem a bit discusted ,,its because i really am .thanks,Pat