Push button 4x4 problems

Hauls Assington · Post by **Hauls Assington** » Fri Apr 17, 2015 4:27 pm

I had the 4x4 working, and but now both the 4x4 and low range lights are on, and it wont shift when I push the button.

Is there a way to run a switch to the 4x4, and a switch to the low range? has anyone done this? I am wondering if I screwed it up, when I was attempting to bypass the neutral safety switch.

Tchajagos · Post by **Tchajagos** » Fri Apr 17, 2015 7:24 pm

If I remember correctly there is a computer that controls the whole thing. So it's not just a neutral safety switch. The computer checks to make sure it can shift and after it gets the clear it makes the switch. Maybe it is not getting the signal from the safety switch now and won't switch. Also I think you need to be on the brakes when you press the button. I am not 100% on all this. I'm sure someone much more knowledgable will chime in.

Hauls Assington · Post by **Hauls Assington** » Sat Apr 18, 2015 12:44 am

Yeah, I wonder if something is unplugged that shouldn't be.

300 · Post by **300** » Sat Apr 18, 2015 1:00 am

Most of the trouble I have had with mine related back to the switch on the drive motor that provides position feedback to the computer. It gets a little moisture in it and corrodes the switch contacts. When it doesn't know where it it is, it does nothing. Also had the switch plate come unglued from the drive plate, same problem. If you just run power to the motor, it will just run to one end of the range or the other until the motor stalls. Have also heard of trouble when it is very cold.
There are some other threads on this issue.

BDKW1 · Post by **BDKW1** » Sat Apr 18, 2015 10:30 am

Shit can it for a manual one.

One the Rangers you could crawl underneath and manually turn them with a 1/2 ratchet. Not sure if the fullsize T-cases can be done the same way.

cs_drums · Post by **cs_drums** » Sat Apr 18, 2015 2:30 pm

A cheap semi inconvenient fix is the shiftster. Replaces the motor but you have to go under the truck and shift it.

Hauls Assington · Post by **Hauls Assington** » Sat Apr 18, 2015 6:41 pm

Yeah, I have in my possesion an np208 with all the shifters and linkage, but it seems like a hulking turd of a t-case, and it seems that people in the cyber world don't like the 208.

Hopefully something is just unplugged.

shockseals.com · Post by **shockseals.com** » Mon Apr 20, 2015 9:50 pm

when my heater core took a shit it pissed on my tcase computer...would shift to 4 hi but not 4 lo. Second time it did that the plug into the computer was loose. My computer is mounted to my cage.

Lots of fords use the same computer. I think I went to the yard and grabbed a couple out of explorers. No problem since fixing wiring and mounting nice to the cage instead of half ass.

Why bypass neutral switch? I know for 4 lo you gotta be in neutral so I am sure that could have something to do with it.

Also unplug the motor itself and put grease in the connector and put back together. That plug has issues with weather.

If/when it shits on me in the future I will put in the manual I have sitting in the shed and not worry about it then I will put up the electric t case and multiple computers I have.

Hauls Assington · Post by **Hauls Assington** » Mon Apr 20, 2015 11:40 pm

Is the red light on the t-case computer supposed to be on or off when it is working? Mine is off. But I don't remember ever seeing it on, probably because it used to be hidden under the dash.

Mine is off. I removed the ac/heater and plated the firewall where they were. In doing so I moved the t-case computer away from the heat, I thought I got it plugged back in right, but maybe not. I checked every connection I could think of and no dice.

both the 4x4 and low range lights are on, on the push button. I wonder if it is working and just stuck in low range?

I deleted the neutral switch because i went from e4OD to c-6 with winters sidewinder shifter.

Hauls Assington · Post by **Hauls Assington** » Wed Apr 22, 2015 11:51 pm

The problem remains. Does anyone know if the neutral safety switch must be plugged in for the t-case to shift?

birdco85 · Post by **birdco85** » Thu Apr 23, 2015 7:49 am

I'm not sure but does a certain wire get grounded when in neutral? Try checking the wiring schematic and ground that wire (if there is one).

Hauls Assington · Post by **Hauls Assington** » Thu Apr 23, 2015 5:35 pm

Im pretty sure that last time i tried it, the nss was still on there. I think i removed the whole harness that the nss was attached to, i wonder if there are two wires i could jumper together to fool it into thinking it has the nss.

Hauls Assington · Post by **Hauls Assington** » Wed Apr 29, 2015 12:08 am

I'm getting pretty close to ordering a shiftster.

birdco85 · Post by **birdco85** » Wed Apr 29, 2015 6:20 am

That sounds terrible! Its bad enough having to get out to lock the hubs, now you'll have to get on the ground. And imagine if you're in something that requires 4 low and you have to put the tranny in neutral, are you going to rely on the e brake if you're on a hill? Maybe a very temporary band aid but I would hate having that. Hit a junk yard and pull a manual tcase.

birdco85 · Post by **birdco85** » Wed Apr 29, 2015 10:18 am

I found this on FSB. If you haven't seen it I hope it helps.

http://ylobronc.users.superford.org/doc ... ec1356.htm

VintageIronFab · Post by **VintageIronFab** » Sun May 03, 2015 1:34 pm

I agree with birdco85-- to me without a cable operated mechanism the shiftster is just a dumb idea-- if you ask me. Locking the hubs does suck agreed but at least you aren't getting out and laying underneath the truck to do it.

Hauls Assington · Post by **Hauls Assington** » Mon May 04, 2015 11:43 am

Thanks for the wiring diagram, times like this make me wish i had bought a bronco with a shifter tcase. I still have not gotten it to work yet.

Tchajagos · Post by **Tchajagos** » Fri May 08, 2015 7:35 pm

Says it uses the speed sensor as well. Do you have that hooked up too?

Hauls Assington · Post by **Hauls Assington** » Mon May 11, 2015 8:12 am

No, i completely deleted the abs system. If that is the speed sensor you are referri g to. The vss, im assuming. It seems like the computer to the tcase is not getting power or is fried.

Tchajagos · Post by **Tchajagos** » Fri May 29, 2015 3:00 pm

With The push button 4x4 you can actually shift on the fly at speed. The computer uses and checks a bunch of stuff before it tells the t-case motor to turn into 4x4. All that stuff has to be working for it to actually make the shift. I don't have the link but there is a way to test the shifter computer. It's located on the passenger side kick panel. Since you are deleting a bunch of electronics it might be best to put in a manual t-case.