Go Back   Ford Truck Enthusiasts Forums > Super Duty/Heavy Duty > Super Duty & Heavy Duty
Sign in using an external account
Register Forgot Password?


Super Duty & Heavy Duty 1999 to current Ford F250, F350, F450 and F550 Super Duty with diesel V8 and gas V8 and V10 engines SPONSORED BY:

Welcome to Ford-Trucks Forums!
Welcome to Ford-Trucks.com.

You are currently viewing our forums as a guest, which gives you limited access to view most discussions and access our other features. By joining our community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join the Ford-Trucks Forums community today!





 
     
Old 11-25-2014, 02:32 PM
How-Tos on this Topic
 
Last edit by: IB Advertising
See related guides and technical advice from our community experts:

Browse all: 4WD Guides
Print Wikipost

Reply
 
 
 
 
LinkBack Thread Tools Search this Thread
  #1  
Old 09-07-2011, 01:02 PM
SHADOWDUDE SHADOWDUDE is offline
New User
 
Join Date: May 2004
Posts: 6
SHADOWDUDE is starting off with a positive reputation.
2000 F250 Transfer Case Shift Motor Problem

I had a rebuilt HD transmission put in about 3 months ago. This past weekend I switched from 2wd to 4wd hi and got nothing. This is the first time I tried going into 4wd since I had the tranny replaced. I know the 4wd worked before I took it in for the tranny job. The guy at the transmission shop said it was the transfer case shift motor that went out, but would not accept responsibility for the failure and said these things go out all the time. It looks like a classic mechanic trick to me. Any thoughts?
Reply With Quote
  #2  
Old 09-07-2011, 02:03 PM
dchamberlain's Avatar
dchamberlain dchamberlain is offline
Post Fiend
 
Join Date: Sep 2007
Location: Sweetbrier RV & Train Prk
Posts: 5,738
dchamberlain has a superb reputationdchamberlain has a superb reputationdchamberlain has a superb reputationdchamberlain has a superb reputationdchamberlain has a superb reputationdchamberlain has a superb reputationdchamberlain has a superb reputationdchamberlain has a superb reputationdchamberlain has a superb reputationdchamberlain has a superb reputationdchamberlain has a superb reputation
This is a post I did some time ago on diagnosing transfer case shift problems. Because my truck is a 2004 and yours is a 2000, the fuse #'s won't apply, and when I talk about a 4WD control module, you will have a GEM module instead. However the rest should apply.

http://www.ford-trucks.com/forums/10...l#post10605244

Shift motors do go out. More often the problem is one of the relays though. Try the diagnostics in that post and see what you come up with.
__________________
David Chamberlain
2004 F-250 SD, 4x4 FX4, 6.0L PSD

Oregon Chapter Member:
To join the Oregon Chapter, click HERE
Reply With Quote
  #3  
Old 09-07-2011, 02:27 PM
SHADOWDUDE SHADOWDUDE is offline
New User
 
Join Date: May 2004
Posts: 6
SHADOWDUDE is starting off with a positive reputation.
Thanks David! I checked the fuse inside for the switch and it was fine. When I took it into the transmission shop that replaced my transmission, the guy checked some relays under the hood. I do not know if the ones he checked were the right ones as my owners manual does not show those. He also said he could hear the shift motor trying to switch the transfer case, but couldn't, so he says it is the shifht motor that is bad. I just have a hard time with something that was working fine until it was removed and reinstalled by these guys and doesn't work now. Could they have tightened some bolts/nuts too tight? Could they have dropped the transfer case and damaged the shift motor without any visible damage to the outside? Thanks for your help.
Reply With Quote
  #4  
Old 09-07-2011, 02:32 PM
dchamberlain's Avatar
dchamberlain dchamberlain is offline
Post Fiend
 
Join Date: Sep 2007
Location: Sweetbrier RV & Train Prk
Posts: 5,738
dchamberlain has a superb reputationdchamberlain has a superb reputationdchamberlain has a superb reputationdchamberlain has a superb reputationdchamberlain has a superb reputationdchamberlain has a superb reputationdchamberlain has a superb reputationdchamberlain has a superb reputationdchamberlain has a superb reputationdchamberlain has a superb reputationdchamberlain has a superb reputation
The shift motor just bolts to the side of the transfer case and they shouldn't of needed to remove it, so I don't think it could be a bolt tightening problem. If they damaged it I think it would be visible.

If you can hear the motor trying to shift, there is a possibility that the encoder isn't working. The encoder is a set of switches in the shift motor that signals back to the GEM that shifts have completed and what position the motor is in. If the encoder doesn't detect a shift, the GEM will reverse the shift and it will sound like what you describe.

You might find the encoder connector (it's the 5 or 6 wire connector to the shift motor), disconnect it from the motor and inspect the pins. Make sure none are bent or corroded.
__________________
David Chamberlain
2004 F-250 SD, 4x4 FX4, 6.0L PSD

Oregon Chapter Member:
To join the Oregon Chapter, click HERE
Reply With Quote
  #5  
Old 10-30-2011, 06:07 PM
G4Hire's Avatar
G4Hire G4Hire is offline
New User
 
Join Date: Oct 2011
Posts: 8
G4Hire is starting off with a positive reputation.
I also had my transmission rebuilt, when I got it back, my transfer case would not go into 4 low. It would go into 4 high. After pulling the dash loose to check to see if there was power to [Shift on the fly switch], it appears that the GEM Module going bad. The mechanic that is working on it said the Transfer case motor caused the GEM Module to go out. He told me that I should replace the Transfer case motor also, or expect to buy another GEM Module soon. I wish I had Manual 4X4.
Reply With Quote
  #6  
Old 10-30-2011, 06:49 PM
dchamberlain's Avatar
dchamberlain dchamberlain is offline
Post Fiend
 
Join Date: Sep 2007
Location: Sweetbrier RV & Train Prk
Posts: 5,738
dchamberlain has a superb reputationdchamberlain has a superb reputationdchamberlain has a superb reputationdchamberlain has a superb reputationdchamberlain has a superb reputationdchamberlain has a superb reputationdchamberlain has a superb reputationdchamberlain has a superb reputationdchamberlain has a superb reputationdchamberlain has a superb reputationdchamberlain has a superb reputation
I don't believe a bad transfer case motor could damage the GEM module. I think your mechanic is socking it to you.

But I'm not a mechanic.
__________________
David Chamberlain
2004 F-250 SD, 4x4 FX4, 6.0L PSD

Oregon Chapter Member:
To join the Oregon Chapter, click HERE
Reply With Quote
  #7  
Old 10-30-2011, 06:58 PM
G4Hire's Avatar
G4Hire G4Hire is offline
New User
 
Join Date: Oct 2011
Posts: 8
G4Hire is starting off with a positive reputation.
The mechanic claims that the shift motor is going bad, and that it caused one of the diodes in the GEM Module to burn out. He said that he cycled the motor several times, it got hot and stopped working all together.
He let it cool, and it went back to working, only 4 high though. 4 low is still not working. The GEM Module should be in tomorrow.
Reply With Quote
  #8  
Old 10-30-2011, 07:01 PM
dchamberlain's Avatar
dchamberlain dchamberlain is offline
Post Fiend
 
Join Date: Sep 2007
Location: Sweetbrier RV & Train Prk
Posts: 5,738
dchamberlain has a superb reputationdchamberlain has a superb reputationdchamberlain has a superb reputationdchamberlain has a superb reputationdchamberlain has a superb reputationdchamberlain has a superb reputationdchamberlain has a superb reputationdchamberlain has a superb reputationdchamberlain has a superb reputationdchamberlain has a superb reputationdchamberlain has a superb reputation
The shift motor doesn't get it's power directly through the GEM, but through a set of relays. So the shift motor can't draw too much power from the GEM. I can see the shift motor getting hot and needing replaced. But keep in mind that it's not intended to be run continuously, but just momentarily. Long enough to complete a shift, which is maybe about a second at a time.
__________________
David Chamberlain
2004 F-250 SD, 4x4 FX4, 6.0L PSD

Oregon Chapter Member:
To join the Oregon Chapter, click HERE
Reply With Quote
  #9  
Old 10-30-2011, 07:09 PM
G4Hire's Avatar
G4Hire G4Hire is offline
New User
 
Join Date: Oct 2011
Posts: 8
G4Hire is starting off with a positive reputation.
Thanks for the info, it makes sense to me. The thing that bothers me the most is just like in the original post, it happened right after having the transmission rebuilt. It all worked before, now it doesn't. The cost of the transfer case shift motor is not as bad as the GEM. I would hate to not have him change it and burn out the GEM again.
Reply With Quote
  #10  
Old 11-12-2011, 05:41 PM
02whtmax 02whtmax is offline
Freshman User
 
Join Date: Oct 2011
Posts: 25
02whtmax is starting off with a positive reputation.
Update? did the new GEM get things working again. Bc my 00 f250 wont shift into 4lo but 4hi works no problem. My tranny has never been pulled out the truck either. Im hoping its just a simple relay.
Reply With Quote
  #11  
Old 11-12-2011, 09:52 PM
G4Hire's Avatar
G4Hire G4Hire is offline
New User
 
Join Date: Oct 2011
Posts: 8
G4Hire is starting off with a positive reputation.
Yea, its up and running again. They replaced the Gem Module and the transfer case shift motor. They also had a windshield tech remove, clean and reseal the windshield. The Gem Module was $310.00.
Reply With Quote
  #12  
Old 11-12-2011, 11:05 PM
Testament Testament is offline
New User
 
Join Date: Nov 2011
Posts: 10
Testament is starting off with a positive reputation.
Quote:
Originally Posted by 02whtmax View Post
Update? did the new GEM get things working again. Bc my 00 f250 wont shift into 4lo but 4hi works no problem. My tranny has never been pulled out the truck either. Im hoping its just a simple relay.
Have a look at my thread I started a couple days ago Im having a similar problem as you guys I posted a little video of whats going on anyone have any thoughts on my situation!?
Thanks.
http://www.ford-trucks.com/forums/11...f-trouble.html
Reply With Quote
  #13  
Old 11-13-2011, 10:28 AM
G4Hire's Avatar
G4Hire G4Hire is offline
New User
 
Join Date: Oct 2011
Posts: 8
G4Hire is starting off with a positive reputation.
I took a look at the video, my situation was different. When I turned the ESOF switch to 4high the light would come on. When I tried to get into 4low nothing happened, NO light, No 'Clunk' from the transfer case.They started in the fuse box, and checked to see if there was power to the ESOF switch. No power at the switch. They replaced the GEM Module and now it works fine. The mechanic said that water caused the GEM to go bad, shorting out one of the circuits, the one for 4low.

If it wasn't so expensive I would have converted the transfer case and got rid of ESOF.

[Electronic Sh_t of Failure].
Reply With Quote
Old 11-13-2011, 10:28 AM
 
 
 
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
2002 f250 transfer case shifter operation BC7.3 Clutch, Transmission, Differential, Axle & Transfer Case 0 07-20-2014 06:10 PM
99 Expy shift motor socket does not line up with transfer case shaft vtgboss Expedition & Navigator 27 12-18-2013 01:22 PM
96 explorer no 4 wheel drive todd34 Explorer, Sport Trac, Mountaineer & Aviator 2 01-18-2006 09:22 PM
4wd and 4wd-Low lights flashing t-burd Explorer, Sport Trac, Mountaineer & Aviator 0 12-05-2003 03:32 PM
91 Explorer balky transfer case cicada Explorer, Sport Trac, Mountaineer & Aviator 2 09-23-2001 12:39 PM


Go Back   Ford Truck Enthusiasts Forums > Super Duty/Heavy Duty > Super Duty & Heavy Duty

Tags
1999, 2000, 4x4, case, cases, f150, f250, ford, motor, older, problem, shift, shifter, transfer, transfercase, work

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On

Forum Jump



All times are GMT -5. The time now is 02:21 PM.


Powered by vBulletin® Version 3.8.7 AC1
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Advertising - Terms of Use - Privacy Statement - Jobs
This forum is owned and operated by Internet Brands, Inc., a Delaware corporation. It is not authorized or endorsed by the Ford Motor Company and is not affiliated with the Ford Motor Company or its related companies in any way. FordŽ is a registered trademark of the Ford Motor Company.

vbulletin Admin Backup