Electric Locking Differential Help

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Jun 5, 2018 | 08:31 PM

cosninocanines

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From: Winona, Arizona

Electric Locking Differential Help

I have a 2011 F-350 Super Duty 4x4 with electronic Locker. I use it when pulling a 1,000 gallon water trailer off road to help avoid spinning rear wheels. Today I was in high range 4 wheel rear locked and got stuck on a hill with a full load. I disconnected offloaded the water to a truck tank and got out. Now the dash indicator for the locker is not on and I'm not sure but I think the locker is not working. Is there a fuse in the power distribution box that controls this? If so does anybody know which one it is. Arizona is in record setting draught and I need to haul water just about every day so really need this to work.

Thanks
Mike

Jun 5, 2018 | 09:38 PM

SuperDutyScaler

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From: South Jersey

Yes it has a fuse and controller box, your manual will tell u where the fuse is and what size

Jun 5, 2018 | 10:26 PM

cosninocanines

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From: Winona, Arizona

Quote:

Originally Posted by SuperDutyScaler

Yes it has a fuse and controller box, your manual will tell u where the fuse is and what size

Thanks that's my problem I can't find it in the manual several show freerence to 4x4 but none for locker.

Jun 6, 2018 | 06:39 AM

SuperDutyScaler

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From: South Jersey

I think it's the one for 4wd module

Jun 6, 2018 | 06:40 AM

SuperDutyScaler

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From: South Jersey

Should be under the hood

Jun 6, 2018 | 07:22 AM

seville009

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Fuse #40 in the engine compartment is shown in the manual as the 4x4 electronic lock. Don’t see anything specific for the rear locker, so check out that fuse

Jun 6, 2018 | 10:55 AM

shawn.snow

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From: Northwest Indiana

Hopefully this helps. This is the Inspection and verification from alldata.

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Jun 7, 2018 | 03:25 AM

seville009

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THe differential is not supposed to automatically disengage in 4lo at all, so maybe test the eld when you’re in 4lo and see if it works.

Jun 7, 2018 | 03:30 AM

#10

Chuck's First Ford

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Joined: Jul 2015

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From: very South Texas

what about wire damage near rear end ..? a wire does go to rear axle area.

Jun 7, 2018 | 08:26 PM

#11

cosninocanines

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From: Winona, Arizona

Talked with a Ford Diesel mechanic and he said check fuses 39,40, 53 and 84. All good
Take it to somebody who can run a diagnostic on the 4x4 module which I will do when I'm done hauling water.
Check the coil and wiring at the axle haven't rolled underneath yet but will do.

Thanks for the reply's