I would say the T-case motor died. I know thats what happened once in my 6.4 but at 165K.

 

since someone has a 4x4 issue, I want to hook on and see if someones heard this.
My 2011 is having a 4x4 low issue. 4x4 high works great and so does the rear locker. I can put the truck in N and go into 4x4 low just fine but when i go to put it back to 4x4 high or 4x2 you can hear a loud grinding, the only way to get it back out is to coast the truck in N while turning nob. It was scary and done this twice, I just don't use 4x4 low right now. Any thoughts ?

 

Only way to shift in and out of 4X$ Low is in Neutral. If you were doing this, maybe the computer is not getting the signal when you move the switch.

 

I thought my transfer case motor was bad and just replaced it. No such luck. I get check 4x4 with the wrench light! It works fine till the hubs and every thing motor, trans is all warmed up and then it goes crazy. Any ideas?

 

G.E.M Module - P/N place to buy?

So my 4x4 is acting up. Check fuses, nothing. Changed motor, nothing. Talked to a mechanic and said it could possibly be the GEM module under the dash.

Thoughts?

Anyone know a part number or place to buy one?

Thanks in advance.

 

define acting up?
@fordsvtparts can help if you PM him your VIN

 

Is this the same issue?

http://www.powerstroke.org/forum/6-...um/6-7-problems-forum-2011-2016/1162170-check-4x4-light-no-4wd-tcase-motor.html

If so, I will merge the threads.

 

Yessir it is.

 

Right on, PM mike... I didnt know the newer trucks had GEMs, but he can get you the part you need.

 

Heavy_GD

Appreciate the help.

 

The new trucks us a "smart junction box". It's the fuse box/body control module. We've got a few in stock, so I'm guessing it may be pretty common. Part number DC3Z-15604-C, for the VIN PM'd to me. These typically need to be installed and programmed at the local dealer as well.

Module - Door Lock And Alarm | Genuine Ford | DC3Z-15604-C : AutoNation Ford White Bear Lake | Parts & Accessories

 

Just to clarify, this module also controls the transfer case even though it says "Module - door lock and alarm"?

Thanks,

 

Check 4X4 Light came on I can hear transfer case come on

I can hear the transfer case engage but hubs not locking.. manually lock hubs and 4wd drive works find and dash switch will disengage transfer case with no problem just hubs not auto locking up.. dealer did have cab off twice this summer

 

2014 f250 122,000 miles. Had the same problem. No 4x4 at all. As soon as I switched to 4 hi, the check 4x4 and wrench came on dash. Checked fuses, all Ok. Ended up removing entire shifter module from the transfer case. (3 10mm bolts). Put power to it and watched it move. Reversed power flow a couple of times so that it moved back and forth. Also shifted the transfer case manually a couple times to ensure it was free. Plugged it back in prior to reinstallation and immediately the truck began the 4x4 shift process. Reinstalled the shifter on the transfer case and everything was operating as it should. Problem solved. Wrench light went away so it doesn't appear there are any codes to reset. It appears the shift motor was stuck and just needed to be freed. Truck was bought in Mass but spent most of it's life in Florida (now back in Mass) and so the 4 wheel drive probably saw very little use.