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2005 ESOF problem

604 views 1 reply 1 participant last post by  Capester 
#1 ·
Hi guys I'm new to the Powerstroke Nation. I have yet to own a gas powered truck and have owned Chev, Toyota, Ford and Dodge so I guess you can call me a diesel power guy.

I have just purchased a 2005 f-350 crew cab with 220,000kms. I have been working on a ESOF problem for the last 2 days and read every post on the net in regards to this problem and I need help with this one.

The problem is I turn the switch from 2h to 4h nothing happens and no "4x4" light activates on the dash, this also is the problem with 4L. I have checked wiring, and the vaccume system. What I need is some advice on what relays to check and where they are and or something I have missed.
 
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