4x4 control module plug

[00t444e]

Great way to destroy the axle shaft thrust washer on a D35. Fine on a D28 that had a bearing... not so fine on others.



Can ≠ should... most transfer cases should NOT be shifted from one range to another while moving. Does it really bother you that much to stop and shift?

Either way he has your suggestion so unless you have further troubleshooting steps for him to take, please cease your arguing here.

Keep the thrust washers greased and it's not a problem, shifting a transfer case into low range is no different than shifting a non synchronized manual transmission, they actually shift easer when you are moving slowly than at a complete stop.

 

[Josh B]

Mine says engage up to 55 MPH, and I really see no problem with that, nor any reason to prove it. I'll engage it when I feel it's necessary, and I have never seen it to be necessary when it's doing 55 mph.
I do recall them somewhere referring to some oddballs who would come up on slippery surfaces and engage it believing their shiny new SUV would get them through the mess, but they wound up in the ditches also

 

[Josh B]

Keep the thrust washers greased and it's not a problem, shifting a transfer case into low range is no different than shifting a non synchronized manual transmission, they actually shift easer when you are moving slowly than at a complete stop.

Are thrust washers also on the automatic shifts, or not?

 

[85_Ranger4x4]

Are thrust washers also on the automatic shifts, or not?

Yeah, where the yoke pushes against the differential side of the axle spindle.

Owner's manual says to have trans in neutral and at a stop to shift into 4 low. That is the only way my 1350 would go.

Of all the advantages of a manual t-case, the ease of "quickly" shifting into low range with Ford's stupid dogleg shift pattern is not one of them. I am glad to be rid of it.

1986 STX, watch the front driveshaft, if it doesn't have a slip yoke going into the t-case you will either have to find a manual STX highrider t-case (only the high rider trucks did not have the slip yoke front output) or get the driveshaft to match the t-case from a mere mortal truck. Also a fun game, in first gen land most transmissions are different lengths so watch that too, that effects driveshaft length.

 

[85_Ranger4x4]

86 ford ranger stx
I’m trying to get the 4x4 working and I did some diagnostics on the 4X4 control module.

It had no power or ground so I chased the wires and I found a plug under the driver side dash that comes off of the control module wiring harness. the rest of the harness goes to the electronic shift motor on the Transfer Case.

Does anyone know what this plug goes to?
I’ve looked all around under the dash looking for another plug that it goes into.
Maybe I’m just not seeing it? Or is there something that it plugs into that I can’t find?

also there are 4 other plugs under the driver side dash that don’t plug into anything
Can anyone identify them?

This come from 4x4 control module harness

Random plugs

This is from the '88 EVTM, it might help.

 

[ericbphoto]

The wire colors on the black connector you pictured don't match up with the diagram 85_Ranger posted and they don't match up with my diagrams for a 3rd gen truck. But that doesn't mean it isn't for the 4x4 system. If your wiring is similar to mine, just different colors, then, in the dash, you would have a connector at the back of the 4x4 pushbutton assembly. Then there would be another 8- pin connector in the same harness. Those wire colors should all match up.

Your other random connectors could be for options your truck doesn't have. The more "basic" or "stripped down" your truck is, the more "extra" connectors you will find. Things in that area behind the dash could be warning chime module (key in ignition, lights on, seatbelt, etc.), light for the ash tray, ABS module, windshield wiper delay module, etc. The best way to track things down is to get the EVTM (Electrical & Vacuum Troubleshooting Manual) for your exact year model of truck. These books are often available on eBay. The EVTM is where 85_ Ranger got those drawings and book pictures he posted. Having a copy for your exact truck would match up wire colors. Connector shapes and locations and most importantly, the wiring diagrams.

 

[Uncle Gump]

This is from my 86 EVTM...

 

[Shran]

Are thrust washers also on the automatic shifts, or not?

Yes, there is supposed to be a thrust washer & c clip on the axle shaft that keeps the shaft centered. Greasing it does nothing; most people's hubs are packed full of grease there anyway. The irony here is that every truck I've worked on that had a destroyed thrust washer also had manual hubs... the thrust washer & clip on auto hub trucks is ALWAYS in good shape. Grease or no grease, it's steel spinning against steel when the hubs are locked in. Those two pieces are not designed to rub against each other long term. Thus my recommendation NOT to drive around with the hubs locked in all winter.

 

[85_Ranger4x4]

Yes, there is supposed to be a thrust washer & c clip on the axle shaft that keeps the shaft centered. Greasing it does nothing; most people's hubs are packed full of grease there anyway. The irony here is that every truck I've worked on that had a destroyed thrust washer also had manual hubs... the thrust washer & clip on auto hub trucks is ALWAYS in good shape. Grease or no grease, it's steel spinning against steel when the hubs are locked in. Those two pieces are not designed to rub against each other long term. Thus my recommendation NOT to drive around with the hubs locked in all winter.

Sorry, I was thinking of the plastic washer on the other side that does get greased.

 

[85_Ranger4x4]

This is from my 86 EVTM...

View attachment 104626

It seems kind of off, there is nothing going to shift motor. The motor like never changed. I pulled the one out of my '86 parts truck and it was plug and play in my parent's '94 Explorer. Also nothing going to the switches.

 

[Uncle Gump]

It seems kind of off, there is nothing going to shift motor. The motor like never changed. I pulled the one out of my '86 parts truck and it was plug and play in my parent's '94 Explorer. Also nothing going to the switches.

Oh it's definitely off...

No switches... no encoder motor anywhere in my 86 book.

 

[Josh B]

I've never looked any of them up in any of my stuff. What year model is it

 

[Josh B]

86 ford ranger stx
I’m trying to get the 4x4 working and I did some diagnostics on the 4X4 control module.

It had no power or ground so I chased the wires and I found a plug under the driver side dash that comes off of the control module wiring harness. the rest of the harness goes to the electronic shift motor on the Transfer Case.

Does anyone know what this plug goes to?
I’ve looked all around under the dash looking for another plug that it goes into.
Maybe I’m just not seeing it? Or is there something that it plugs into that I can’t find?

also there are 4 other plugs under the driver side dash that don’t plug into anything
Can anyone identify them?

This come from 4x4 control module harness

Random plugs

Sorry for getting side tracked there. Are you certain that plug goes to the shift motor?
I've been looking around in some of my early Ranger books and they say the 86 has a connector coming from the shift motor to a junction in a box behind the drivers seat
Czn you confirm that, or check the wire colors in yours and see if they are matching the colors you are finding in that plug?
Is that circuit hard to follow on to the shifter?

 

[Josh B]

This is from my 86 EVTM...

View attachment 104626

Does it say where that plug is located?