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6.0L Power Stroke Diesel 2003 - 2007 F250, F350 pickup and F350+ Cab Chassis, 2003 - 2005 Excursion and 2003 - 2009 van

4x4 not working

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Old Oct 28, 2013 | 11:03 AM
  #61  
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From: Tuttle, OK
Originally Posted by bismic
Have you tried swapping the relays?
No, I kind of wanted to do this next though. Anyone got a picture of them so I know for sure what I'm looking for?

Oddly these lights on the dash do not light up with the rest of the cluster when I initially turn on the key. They were on once I engaged the transfer case manually with my test so I know they work. Does anyone else notice their 4x4 light not coming on upon key on?
 
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Old Nov 5, 2013 | 05:56 PM
  #62  
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Ok Clay well i eliminated everything on mine and found out it was in fact the GEM or module whatever you want to call it. The dealer wanted an arm and a leg for a new one so i found a place in Texas called auto part cheaper. They were a lot cheaper then the dealer and better quality and i got in 4 days swapped it out and now my 4 wheel drive works great. Good luck.
 
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Old Nov 5, 2013 | 10:50 PM
  #63  
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From: Tuttle, OK
Originally Posted by Eric Laramore
Ok Clay well i eliminated everything on mine and found out it was in fact the GEM or module whatever you want to call it. The dealer wanted an arm and a leg for a new one so i found a place in Texas called auto part cheaper. They were a lot cheaper then the dealer and better quality and i got in 4 days swapped it out and now my 4 wheel drive works great. Good luck.
Can you elaborate on that? I tested the solinoid on the transfer case and it works. Im not getting power to it either from the switch or the relays. I hope to find time this weekend to mess with it.
 
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Old Nov 6, 2013 | 07:19 AM
  #64  
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Yes i tested my actuator at the transfer case it worked when bypassing everything. Swapped out relays, checked all fuses and no power anywhere. Plus the GEM also controls a lot of other stuff not just the 4 x 4 it controls your keyless entry and some other things as well and my keyless entry was also acting up. I ruled out everything but the module and went ahead and ordered the new one which is under the glove box and it took 5 minutes to change out and after installing the new 1 everything works great. I highly recommend you don't buy one from the dealer though. The have continued to use the crappy parts that always go bad. Good luck Clay my bet is the module is bad.
 
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Old Nov 6, 2013 | 08:03 AM
  #65  
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I dont recall hearing about this GEM. What is it. Maybe I need to read back through this thread...its been a few days since I started this. Everything else is working properly, keyless entry is fine. Hmm? I will have time to mess with it this weekend (3 days off) after servicing the transmission in my sons new 2001 Ranger. There just isnt enough time in the week lately.
 
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Old Nov 10, 2013 | 12:17 AM
  #66  
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Hey Clay if you open your glove box and drop it down so you expose the underside of your dash there is a black box about 4" wide and 6" long it has 3 different wiring harness plugs going into it that is your GEM or 4 wheel drive module. Good luck.
 
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Old Dec 10, 2013 | 08:10 AM
  #67  
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From: Tuttle, OK
Originally Posted by Eric Laramore
Hey Clay if you open your glove box and drop it down so you expose the underside of your dash there is a black box about 4" wide and 6" long it has 3 different wiring harness plugs going into it that is your GEM or 4 wheel drive module. Good luck.
I checked the relays and nothing so I think this might be the culprit. BUT you said it controls other features and nothing else on my rig is acting up, just the 4x4 switch?
Do you remember what you paid for this?
 
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Old Dec 10, 2013 | 08:18 AM
  #68  
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Looks like this is what I need for my 2003 F-350 but I'm not sure what it means by ESOF?? I have the key fob entry too.
 
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Old Dec 10, 2013 | 08:21 AM
  #69  
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ESOF = Electronic Shift On the Fly
 
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Old Dec 10, 2013 | 08:48 AM
  #70  
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From: Tuttle, OK
Originally Posted by MisterCMK
ESOF = Electronic Shift On the Fly
DOH, that was an easy one.
Thanks.
 
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Old Dec 10, 2013 | 04:11 PM
  #71  
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Clay most of the time when the GEM goes bad only 1 thing acts up and usually its the ESOF system. Thats the only issue i had as well. I'd be willing to bet that it is the GEM.
Eric
 
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Old Dec 10, 2013 | 04:24 PM
  #72  
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From: Tuttle, OK
Originally Posted by Eric Laramore
Clay most of the time when the GEM goes bad only 1 thing acts up and usually its the ESOF system. Thats the only issue i had as well. I'd be willing to bet that it is the GEM.
Eric
Does the one in my link above look like the right part?
Is there a way to test it without dropping a load of cash first?
 
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