speedsensor on a E40d

[captbo]

The bronco I just bought has the wires torn on the elec 4wd shift motor,it also yanked out the speed synco wires ,has anyone ever relaced the speed sensor? if so can you tel lme how, I have a haynes but did not find any instructoins

[Alvin in AZ]

Which year Bronco?

On my '91 the driven speedometer gear setup is part of it.
And it wasn't on the E4OD, it was on the 1356E transfer case.

It's now on a 2wd ZF. :)

Alvin in AZ

[Seattle FSB]

Now clarify for me the Speed Sensor you inquire about in your 1992 Bronco:

You are not talking about the Vehicle Speed Sensor (VSS) that was installed in the Transfer Case Tail Housing which sends a usable AC Frequency Signal separately to the Cruise Control and PCM which controls both engine and E4OD functions in 1990/1991 Broncos?

And you are not talking about a Vehicle Speed Sensor (VSS) that was combined with the ABS Sensor located on the rear differential which sends a usable AC Frequency Signal through the ABS Module to the PSOM, for speedometer/odometer functions, and is then sent to the Cruise Control and PCM in 1992 and later Broncos?

Are you asking about a Synchronization Unit for "Shift on the Fly"? Truly I would not know about these things because I'm still trying to figure out what the "clicky" foot switch on my floor is for...

[miesk5]

yo; FYI & for Posterity
BW 1356 Electric Shift Speed Sensor Wiring Diagram & "...The speed sensor is important because the vehicle must be stopped for a shift into or out of 4L. The shift module won't make the shift if the vehicle is moving. speed sensor should show 225-275 ohms with the vehicle stopped. Check at the module connection..." Miesk5 Note Ford Part Number is 7f293 speed sensor
Source: by Dustin S (Dustball, Mellow Yellow, Mr. Laser Boy) at ylobronc.users.superford.org

1356 Electric Shift Speed Sensor Location in Parts Break-Out Diagram
Source: by Steve83 (Steve, That dirty old truck) at SuperMotors.net SEE #20

1356 Electric Shift Speed Sensor Location in a 91 Explorer, but Similar; Miesk5 Note Ford Part Number is 7f293 speed sensor
Source: by Ford via cobraxp.com

[captbo]

This is in My 95 its on the transfer case and its wired from the elec shift motor. Miesk5, I think the stuff you posted will get me through thanks,,Bo

[miesk5]

yw.. GL! btw, if you can, please take a pic or 3 of the sensor and post it here for others to see; not much info on this at all.

[Alvin in AZ]

Originally Posted by captbo

...95...
Miesk5... thanks
Bo

x2 :)
Cool stuff you posted there Miesk5. :)

Just pulled that whole works out of my '91 since I'm going ZF+2wd.
What sort of pictures are needed?
...pictures of ~'95 stuff?
...where the connections are?

A '91 module and its wiring harness laying on the ground, help any? ;)

Alvin in AZ

[drinkbrew]

Originally Posted by miesk5

yw.. GL! btw, if you can, please take a pic or 3 of the sensor and post it here for others to see; not much info on this at all.

here is a pic I have with the speed sensor hole exposed, it's the one in the red circle, my problem is I broke the other wire (blue circle) that goes to the magnetic clutch and haven't figured out how im going to fix that yet.

Miesk5 I'll try to get some better pics of the speed sensor itself tonight if you want them as reference. The pdf you posted is the first thing I have seen that even explained what my broken wire is for lol.

[drinkbrew]

here's a few pics of the transfercase speed sensor if it helps, not the best quality it was my iphone and a flash light lol







this is probably the best view i got of it

[miesk5]

yo Drink!
Again, we have snow and Comcast is too slow for me to stay connected; so,
I can't see how you can repair the wiring without removing the rear cover, etc...
I was thinking at first of a by-pass solution is based on jumping out that wire feed for magnetic clutch, but that won't work

Basing it on 1356 Electric Shift Wiring Diagram
Source: by Dustin S (Dustball, Mellow Yellow, Mr. Laser Boy) at ylobronc.users.superford.org
&
1356 Electric Shift Parts Break Out Diagram w/nomenclature
Source: by Steve83 (Steve, That dirty old truck) at SuperMotors.net



Maybe yoomooman can jump in and give you some hints since he rebuilt his ESOF

[miesk5]

Originally Posted by Alvin in AZ

x2 :)
Cool stuff you posted there Miesk5. :)

Just pulled that whole works out of my '91 since I'm going ZF+2wd.
What sort of pictures are needed?
...pictures of ~'95 stuff?
...where the connections are?

A '91 module and its wiring harness laying on the ground, help any?

Alvin in AZ

Alvin..thanks buddy! All the thnx goes to those guys & gals that took their time to post-up that info, pics and stuff!

If you have time; take pics of the speed sensor, its Connector with pin views; etc.
also if you can, have time to remove the cover and get to the magnetic clutch so db can open his up and do da repair to the wiring?

thanks! it will def help others too in da future

[Alvin in AZ]

Originally Posted by miesk5

...pics of the speed sensor, its Connector with pin views; etc.
...remove the cover and get to the magnetic clutch...

Yeah, I can do those, I need to fix the ATF-induced "bare wire problem"
on the 1356E so I can sell it. I'll be sure take and/or scan some pics
in the process. :)

Need a scan of the speed sensor right away tho?

Wiring diagrams kick butt for connector wire positions and for the wire
colors too. Found a few mistakes so far but nothing important really. :)

Alvin in AZ

[miesk5]

Alvin,
Take your time on the Speed Sensor pics...
The mag clutch access is what drinkbrew needs tho
TY!

[kf4amu]

My truck will not shift into 4 LOW right now. It shifts into 4 HIGH just fine, but the light blinks when LOW is depressed. The neutral ground signal is actually 30 ohms, but even when a known good ground is applied to the red/white wires pin, it still does not shift into LOW.

The speed sensor measures 6000 ohms, way outside the 225-275 range it should be. I will replace it, and see if it fixes it.