4x4 esof problem
Thread Starter
|
5th Wheeling
Joined: Feb 2022
Posts: 32
Likes: 1
From: Northern California
4x4 esof problem
Hi fellas I recently scored a 2000 f350 super cab long bed 4x4 7.3 auto it has esof electric shift on the fly 4x4 the shift motor still works when you jump the solenoid under the hood all fuses are good but there is no power to the switch in the cab at all no even the illumination circuit works I really don't want to tear the dash out to chase wires anyone got any advice btw still use the 4x4 every day as I live 5 miles up a Nasty dirt road also if I don't get back in a timely manner I cause I'm off grid and probably haven't had internet
Logistics Pro
Joined: Nov 2006
Posts: 3,685
Likes: 374
From: Fallon,NV & Bainbridge OH
The lights burn out, as it only an incandescent. How do you know you have no power? Have you checked fuses and the switch for continuity? What about vacuum lines to the hub, they should probably be replaced.
Try the simple stuff first.
Try the simple stuff first.
FTE Leadership Emeritus
Joined: May 2014
Posts: 27,355
Likes: 5,951
From: Lake Hartwell, GA
Maybe the switch itself has failed...
Best advice I can offer is to work through the pinpoint test in the 7.3L PSD Tech Folder and pasted below.
Axles & Hubs
Best advice I can offer is to work through the pinpoint test in the 7.3L PSD Tech Folder and pasted below.
Axles & Hubs
Logistics Pro
Joined: May 2017
Posts: 3,523
Likes: 483
From: Southern OH
Get rid of that problematic over complicated garbage and put a manual shift transfer case in. I will never understand why manufacturers want to complicate something as simple as shifting a transfer case, a lever and a linkage is the only way to go.
Thread Starter
|
5th Wheeling
Joined: Feb 2022
Posts: 32
Likes: 1
From: Northern California
Hi guys sorry for the late reply I'm going to switch to manual 4x4 but FYI I pulled the switch out and checked the Plug for power there was no power and all fuses were good
Lead Driver
Joined: Aug 2022
Posts: 5,098
Likes: 1,423
From: Oologah, OK
Hi fellas I recently scored a 2000 f350 super cab long bed 4x4 7.3 auto it has esof electric shift on the fly 4x4 the shift motor still works when you jump the solenoid under the hood all fuses are good but there is no power to the switch in the cab at all no even the illumination circuit works I really don't want to tear the dash out to chase wires anyone got any advice btw still use the 4x4 every day as I live 5 miles up a Nasty dirt road also if I don't get back in a timely manner I cause I'm off grid and probably haven't had internet
I have two TM hotspots and they work just about everywhere we carry them.
I have one here at home, and my daughter carried the 2nd one with her to visit family up in Price, Utah... it worked the whole way up there.
I used it last summer in Price, and got good speeds of 25 to 80 mbps down
the DATA rate is $50/month for 100gB/month
I paid $198 for mine in advance, saved a few coins.
this is a later version of mine which is a m2000, I have seen speeds on of 800mBps in a good location.... wireless is the same a Real Estate, Location, location, location.
but, even in bad areas, they have been good enough for our laptops
https://www.t-mobile.com/hotspot-iot...u=610214674791
It's a Van Gogh
Joined: Feb 2010
Posts: 7,813
Likes: 1,335
From: Elk Grove, CA
I have T Mobile and was completely out of range today for an hour driving thru the Delta. California is huge and has dead spots the size of some states.
For the power to the switch inspect the wire harness down to the trans, things get crimped and mangled.
If desperate you can pull off the xfer switch motor from the case and shift it with a crescent wrench. Put it back on if dust is an issue.
For the power to the switch inspect the wire harness down to the trans, things get crimped and mangled.
If desperate you can pull off the xfer switch motor from the case and shift it with a crescent wrench. Put it back on if dust is an issue.
Trending Topics
Thread Starter
|
5th Wheeling
Joined: Feb 2022
Posts: 32
Likes: 1
From: Northern California
Nah where I'm at the only signals that work are Verizon between noon and 3 every other day nothing else seems to work
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
Top 6 Best Deals Available on New Fords & Lincolns Right Now
Brett Foote
This Hennessey Takes the Expedition Tremor's Off-Roading Capability to the Next Level
Verdad Gallardo
Top 10 Fords at 2026 Carlisle Ford Nationals
Joe Kucinski
3 Best / 3 Worst Parts of Modern Ford Ownership
Brett Foote
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches
Pouria Savadkouei
Every 2026 Ford Engine Explained
Brett Foote
10 Ugly Ford Trucks That We Still Kinda Love
Joe Kucinski
10 Things Every Truck Owner NEEDS (2026 Edition)
Michael S. Palmer
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Lead Driver
Joined: Dec 2006
Posts: 7,093
Likes: 147
From: San Diego, CA
I got tired of chasing vacuum leaks (and replacing wheel hubs) so capped the vacuum line, put an NPT plug in each knuckle, installed a Dynatrac Free-Spin kit, and never looked back.
That is a little on the extreme end price-wise but I had just done over $1200 worth of damage to the front drivetrain in parts alone so I considered it a "discount" towards the price of the kit. YMMV
That is a little on the extreme end price-wise but I had just done over $1200 worth of damage to the front drivetrain in parts alone so I considered it a "discount" towards the price of the kit. YMMV
Thread Starter
|
5th Wheeling
Joined: Feb 2022
Posts: 32
Likes: 1
From: Northern California
I got tired of chasing vacuum leaks (and replacing wheel hubs) so capped the vacuum line, put an NPT plug in each knuckle, installed a Dynatrac Free-Spin kit, and never looked back.
That is a little on the extreme end price-wise but I had just done over $1200 worth of damage to the front drivetrain in parts alone so I considered it a "discount" towards the price of the kit. YMMV
That is a little on the extreme end price-wise but I had just done over $1200 worth of damage to the front drivetrain in parts alone so I considered it a "discount" towards the price of the kit. YMMV
Thread Starter
|
5th Wheeling
Joined: Feb 2022
Posts: 32
Likes: 1
From: Northern California
I have T Mobile and was completely out of range today for an hour driving thru the Delta. California is huge and has dead spots the size of some states.
For the power to the switch inspect the wire harness down to the trans, things get crimped and mangled.
If desperate you can pull off the xfer switch motor from the case and shift it with a crescent wrench. Put it back on if dust is an issue.
For the power to the switch inspect the wire harness down to the trans, things get crimped and mangled.
If desperate you can pull off the xfer switch motor from the case and shift it with a crescent wrench. Put it back on if dust is an issue.
Cargo Master
Joined: Aug 2003
Posts: 2,332
Likes: 442
From: Eastern Washington
The vacuum hubs suck, but if you just treat them like manual hubs they work fine.
I've had my ESOF for 16 years now and it's never failed, not sure where the hate is coming from.
The switch is just a series of resistors that the GEM module uses to determine what you want the TCase actuator to do.
Measuring for voltage there won't help you. You should check for voltage at either the shift actuator or the 4x4 relays on the firewall.
To be clear, you can't shift from 2x to 4x high, right?
I've had my ESOF for 16 years now and it's never failed, not sure where the hate is coming from.
The switch is just a series of resistors that the GEM module uses to determine what you want the TCase actuator to do.
Measuring for voltage there won't help you. You should check for voltage at either the shift actuator or the 4x4 relays on the firewall.
To be clear, you can't shift from 2x to 4x high, right?
Thread
Thread Starter
Forum
Replies
Last Post
jasonvector
2017 - 2022 Super Duty
2
Dec 13, 2022 07:48 AM