1988 Bronco

[jdcii]

Can someone point me in the general location of the shift module? My push button went out and I've read thru the other posts even looked at the schematics. Is it in the dash, under the hood near the fire wall, or closer to the transfer case? Roughly how large is it?

Also should ask, where could I buy this component other than a dealership?

Thanks,

JDCII

 

[jdcii]

Figured out where the shift module was located. Tested it and lo and behold its bad. Called a ford dealership and they no longer offer this part to ford, however there are some dealers that still have the part in stock. $600 + tax. OUCH! Any suggestions?

 

[miesk5]

Figured out where the shift module was located. Tested it and lo and behold its bad. Called a ford dealership and they no longer offer this part to ford, however there are some dealers that still have the part in stock. $600 + tax. OUCH! Any suggestions?

I'd go to a yard and get one w/a returnable warranty.

There are 1000s of the mods out there.

Look in the Parts for Sale Section here.. go to Page 2 & scroll down to Steve83

ok he has a later model year for sale at http://www.supermotors.net/registry/media/539290



ESOF Module from a '96 EB Bronco (date code 5K30) passes self-test

Probably compatible with all Electronic Shift-On-the-Fly transfer cases & motors, but that's just a guess. The harness is specific to '94-96 trucks (except crew-cab) because of the airbag wiring, but it can be adapted to non-airbag or crew-cab applications.

For more info, see this:

http://www.supermotors.net/registry/media/724137

 

[jdcii]

I found one at a yard for $25 out of a 93 Bronco. The motorcraft model out of my 88 started with E8 and the one I found started with F1, the rest of the part number was identical, figured for $25 it couldn't hurt to try. I installed it, turned it on, pushed the button... click click click. The 4x4 on the dash lit up. Drove it around a little and wasn't sure the hubs were locking in. So I drove in 2wd till I started to slip hit the button and heard a clunk. Hubs locked and away I went.

I am unable to get into low range. Not sure where to start trouble shooting that. I hit the low range button and get nothing. Maybe the switch itself is bad? Any ideas?

 

[miesk5]

I found one at a yard for $25 out of a 93 Bronco. The motorcraft model out of my 88 started with E8 and the one I found started with F1, the rest of the part number was identical, figured for $25 it couldn't hurt to try. I installed it, turned it on, pushed the button... click click click. The 4x4 on the dash lit up. Drove it around a little and wasn't sure the hubs were locking in. So I drove in 2wd till I started to slip hit the button and heard a clunk. Hubs locked and away I went.

I am unable to get into low range. Not sure where to start trouble shooting that. I hit the low range button and get nothing. Maybe the switch itself is bad? Any ideas?

Read this;

Ford Four Wheel Drive System Excerpt from Bronco/F Series Owner's Guide in a 96 Source: by Ford via our PAL, BroncoJoe19 at Ford Bronco Zone Forums

Scroll to 4x4 SYSTEMS-TOUCH DRIVE, page 196

aww..Comcast is running better this morn!

here it is;

To shift from 4x4 to 4x4 LOW RANGE: Stop the vehicle and place the automatic transmission in NEUTRAL or depress the clutch on vehicles with a manual transmission. Push the LOW RANGE button on the instrument panel to shift the transfer case from 4x4 to 4x4

LOW RANGE. Both the 4x4 and LOW RANGE lights are now lit. NOTE: The vehicle must already be in 4x4 before pushing the Low Range Button.

To shift from 4x4 LOW RANGE to 4x4: Stop the vehicle and place the automatic transmission into NEUTRAL or depress the clutch on vehicles with a manual transmission. Push the LOW RANGE button on the instrument panel to shift the transfer case from 4x4 LOW RANGE to 4x4"

Some find they need to go thru those steps, then turn engine off, then back on and try again

because;

Electric Shift (Ford "Touch-Drive" ESOF) Operation TSB 92-01-08 for 92 & Prior Bronco, F Series, Ranger & others (press Next to view Page 2)Source: by Ford via Steve83 (Steve, That dirty old truck) at SuperMotors.net

Specifically;

"..."TOUCH DRIVE" - NEW ELECTRONIC CONTROL MODULE FOR 1991

A new electronic control module has been installed on the 1991 model Ford trucks with "Touch Drive," built after 8/6/90. The new module features a different computer logic to control shifting.

With the previous module, it was possible for the driver to select 4L directly from 2WD. However, the control module actually shifted the vehicle into 4H first, then checked to see if the vehicle was stopped and that the automatic transmission was in neutral (or the manual transmission clutch was disengaged). If these conditions were not met, the actual shift wouldn't take place. Instead, everything would be make ready for the moment when the shift could be completed. This was called pre-staging.

During pre-staging, the Low Range light flashed. This confused some customers. In addition, pre-staging and the flashing light sent confusing signals to the new E4OD transmission's electronic controller.

The new module solves both these problems. With the new logic, if the driver selects 4L when in 2WD, nothing will happen, because the transfer case controller ignores the 4L signal. The driver must make the shift to 4H first, then, while stopped, shift to 4L..."

read more for TESTING that Module.

btw, Good buy on that JY piece!