Fun In B.C.  

Welcome to the Fun In B.C. forums. your outdoor adventure headquarters.

As guest on our site, you have the chance to take a look around and get an idea of what we're all about. Feel free to check out some of the current topics of discussion and some of the stories of adventure gone by, by clicking on the top right picture to view past "Pictures of the week" .

Don't be shy, come on in. By joining our free community you'll be able to join in the fun with other outdoor adventurers and find out about upcoming events. you will also get access to View posted pictures. Stop sitting on the outside looking in, join today it's easy and it's FREE.

It's time for you to start having FUN..... in BC!!

If you have any problems with the registration process or your account login, please contact contact support.

HOTMAIL USERS: Check your 'junk mail' folder for the confirmation message and add 'funinbc.com' to your safe list so you don't miss anymore important emails from us.

Go Back   Fun In B.C. > All about your Ride > Ford discussions

Reply
 
Thread Tools
  #1  
Old 02-07-2016, 02:30 PM
Tinker's Avatar
Tinker Tinker is offline
Tinker Belle loves my
Swollen Member
 
Join Date: Jan 2007
Location: MR
Posts: 2,211
Tinker Good newbie
Reputation: 15
03 F150 ESOF problem

So me Ferd was being a Turd. My 4x4 system s#@$ the bed. After excessive banging my head against a wall I decided to get logical with it. At this point i have already pulled my whole dash apart to take GEM (General Electronics Module) out for inspection for water intrusion. And checking the 4x4 relay above the radio. Next I Downloaded Ford troubleshooting manual.

Primary symptom was no power to the dash switch. Turn it and nothing would happen.

Headed to Dirka's to drink beer and borrow his Snap-on OBD reader.

Step 1 check all fuses under dash and under hood. Everything checked out good

Step 2 check power to fuses. All fuses powered

Step 3 plug in OBD and connect to GEM. .... success! Big one here as communication means module is good and functioning (was not experienceing any other GEM symptoms) . Went into 4x4 system and was presented 2 codes. They only show in the GEM and not in the PCM (ie check engine light is PCM) P1850 and P1854.

The text of the code is "transfer case plate B circuit open" and "plate C" what that actually is the GEM isnt reading the transfer case shift motor position. The module checks this at the start position of key. If it does not get the position reading as safe to engage, the GEM shuts off power to the 4x4 circuit.

I removed the transfer case shift motor to bench test and replace if necessary.

Once off truck I marked the position of the selector before taking it apart. I pulled apart the gear drive side and ran the motor in both directions. No issues found.

When I put the gear back in it was not at a complete travel position. About 1/2" out. I powered the motor and "parked" the gear at its stop and reassembled.

When reinstalling motor I noted spring tension from the t-case selector. Had to "clock the motor for alignment.

Plug it all back in and fired up the truck. When I threw the switch I heard the dash relay and t-case engaged and I got my dash light (missing for about a year). Wife claims I screamed like a girl but I was one happy guy.

Total cost of repair .... zero dollars and about 6 hrs diagnosis and re n re.
__________________
CANCER !!! . Life is to short for the petty stuff...so remember, Don't sweat the petty things just pet the sweaty things!
Reply With Quote
  #2  
Old 02-07-2016, 05:49 PM
Burge's Avatar
Burge Burge is offline
Porch Honky with a
Swollen Member
 
Join Date: Dec 2004
Location: Haney, BC, Canada.
Posts: 1,901
Burge bad newbie
Reputation: 0
doesnt it feel good to properly troubleshoot something and not just toss your wallet it at nicely done
__________________
Team Legend Burge
Reply With Quote
  #3  
Old 02-08-2016, 08:37 AM
vajayjay's Avatar
vajayjay vajayjay is online now
My name goes well with a
Swollen Member
 
Join Date: Oct 2008
Location: Ridge
Posts: 5,704
vajayjay Good newbie
Reputation: 16
Nice.....

Now build a 4x4
__________________
Team Heep

I blew up my stroke so I got a bigger cummin
Reply With Quote
  #4  
Old 02-08-2016, 10:49 PM
harvester_sorrow's Avatar
harvester_sorrow harvester_sorrow is offline
Wheeling a Golf Cart gives me a
 
Join Date: Jul 2007
Location: PoCo
Posts: 7,109
harvester_sorrow Good newbie
Reputation: 11
Good troubleshooting.

That was like the e locker in my truck. Would not actuate. Something in the computer. Grey wire mod and it was good to go.
__________________
Taking golf carts where they don't belong
Reply With Quote
  #5  
Old 02-10-2016, 03:23 PM
dirka dave's Avatar
dirka dave dirka dave is offline
My carbon print is the size of a crater
Swollen Member
 
Join Date: Dec 2006
Location: In the space between space...
Posts: 17,404
dirka dave bad newbie
Reputation: 9
Learned a lot with this one.



It's nice to have the tools and the info to fix things rather than just blindly replacing parts like most backyard fixit people.
__________________
..TEAM OO......
The beatings will continue until morale improves !
Reply With Quote
  #6  
Old 02-11-2016, 09:09 PM
4skin's Avatar
4skin 4skin is offline
Cact
Swollen Member
 
Join Date: Feb 2010
Posts: 8,694
4skin Good newbie
Reputation: 15
So do you know why it wasn't working ?
Just make shure you have tools to pull it apart on the upcoming trip
Sucks when it's now in 4wd and won't come out when you get back to pavement
Basically the armature in the drive motor has a dead spot in it
If it stops in same spot again it may not move without some help
Reply With Quote
  #7  
Old 02-12-2016, 12:21 AM
Tinker's Avatar
Tinker Tinker is offline
Tinker Belle loves my
Swollen Member
 
Join Date: Jan 2007
Location: MR
Posts: 2,211
Tinker Good newbie
Reputation: 15
Quote:
Originally Posted by 4skin View Post
So do you know why it wasn't working ?
Just make shure you have tools to pull it apart on the upcoming trip
Sucks when it's now in 4wd and won't come out when you get back to pavement
Basically the armature in the drive motor has a dead spot in it
If it stops in same spot again it may not move without some help
Yea I know why and no that's not it. I didn't go with maybes or what ifs. Ford has a specific way of getting into and out of 4wd lo. Somebody (not myself) did not know the complete stop, turn switch, depress brake and wait for t-case to engage to 4lo procedure. Threw the switch back and forth on a boat launch and caused a 4wd circuit shut down fail safe (I know cuz dirkas reader showed me the 7 codes that popped when that happened). When the power got cut the motor had switched to 2wd but not completed its travel there by not showing the GEM a t-case position and maintaining no power to the 4wd system. If for whatever reason I do need to remove the motor again Im sure Ill be able to come up with a 10 mm.
__________________
CANCER !!! . Life is to short for the petty stuff...so remember, Don't sweat the petty things just pet the sweaty things!

Last edited by Tinker : 02-12-2016 at 12:26 AM.
Reply With Quote
  #8  
Old 02-12-2016, 04:14 AM
harvester_sorrow's Avatar
harvester_sorrow harvester_sorrow is offline
Wheeling a Golf Cart gives me a
 
Join Date: Jul 2007
Location: PoCo
Posts: 7,109
harvester_sorrow Good newbie
Reputation: 11
I like what ifs and maybes. Good job security
__________________
Taking golf carts where they don't belong
Reply With Quote
  #9  
Old 02-12-2016, 07:26 AM
4skin's Avatar
4skin 4skin is offline
Cact
Swollen Member
 
Join Date: Feb 2010
Posts: 8,694
4skin Good newbie
Reputation: 15
II was more thinking of the t20 tamper proof bit for removing the gear cover on motor
Have the same truck at work was doing the same thing
Scanned it first before taking anything apart
Inoperative shift motor checked there was power to shift motor
Tried powering shift motor no worky pulled it off t case and took gear case apart
Put power to motor again worked fine
Cleaned up contacts and gear housing fresh grease
Put it back together worked fine for two weeks
And then it stuck in low range on a job site in Princeton
Oh and if it won't shift don't just pull shift motor off and manually shift it to 2h
And try to drive it aparently it makes a loud bang when it slips into neutral

oh and this was quoted from a Ford bulletin
Shift From 2H to 4H Results In Chatter and Clicking Noises From The Module, But No Shift

Typically, in this situation the motor hunts for 4H, but overshoots, then hunts back and overshoots the other way. After 7-10 seconds, with lots of clicks and chatter, the module gives up and returns to the default, which is 2H. This problem is normally not the sensor input. It is usually the result of the motor running too fast or braking too slowly to allow the module to position it accurately. The motor must be replaced.

Last edited by 4skin : 02-12-2016 at 07:38 AM.
Reply With Quote
  #10  
Old 02-12-2016, 07:52 AM
Tinker's Avatar
Tinker Tinker is offline
Tinker Belle loves my
Swollen Member
 
Join Date: Jan 2007
Location: MR
Posts: 2,211
Tinker Good newbie
Reputation: 15
K, you must be right. I was wrong I, I can't fix my own junk.
__________________
CANCER !!! . Life is to short for the petty stuff...so remember, Don't sweat the petty things just pet the sweaty things!
Reply With Quote
  #11  
Old 02-12-2016, 09:59 AM
4skin's Avatar
4skin 4skin is offline
Cact
Swollen Member
 
Join Date: Feb 2010
Posts: 8,694
4skin Good newbie
Reputation: 15
Not what I was saying just making a suggestion as to take
Any special tools to take it apart with you in case
Reply With Quote
  #12  
Old 02-12-2016, 10:46 AM
Tinker's Avatar
Tinker Tinker is offline
Tinker Belle loves my
Swollen Member
 
Join Date: Jan 2007
Location: MR
Posts: 2,211
Tinker Good newbie
Reputation: 15
If it shits the bed again I will replace the motor. As it is the motor was not taken apart nor would I take it apart. I ran the motor both ways checking current. No drop was noted. For whatever reason if it did get "stuck" in 4wd the selector can be manually shifted back to 2wd with the motor off. The gear can be reset and I will be able to drive home. I appreciate the concern but I think I got it covered.

I made the post to share with fibc and the internet for people to have more options than just throwing their wallet at it. I fully understand what worked for me may not work for others. Primarily there is no reference to those 2 codes directly pointing at the t-case shift motor as the reason. There is a slough of issues with the whole system all having different causes and solutions. This being just one, yours being another. Over all the years that I have worked on my own stuff I have probably saved 10's of thousands in shop costs. I don't pretend to know everything there is but I make it my buisness to research and learn. Its just nice to be able to help others in their search for answers.
__________________
CANCER !!! . Life is to short for the petty stuff...so remember, Don't sweat the petty things just pet the sweaty things!
Reply With Quote
  #13  
Old 02-12-2016, 05:16 PM
harvester_sorrow's Avatar
harvester_sorrow harvester_sorrow is offline
Wheeling a Golf Cart gives me a
 
Join Date: Jul 2007
Location: PoCo
Posts: 7,109
harvester_sorrow Good newbie
Reputation: 11
Remember the old manual shift days
__________________
Taking golf carts where they don't belong
Reply With Quote
  #14  
Old 02-12-2016, 05:34 PM
Tinker's Avatar
Tinker Tinker is offline
Tinker Belle loves my
Swollen Member
 
Join Date: Jan 2007
Location: MR
Posts: 2,211
Tinker Good newbie
Reputation: 15
Quote:
Originally Posted by harvester_sorrow View Post
Remember the old manual shift days
Bent or broken linkage.....yup
__________________
CANCER !!! . Life is to short for the petty stuff...so remember, Don't sweat the petty things just pet the sweaty things!
Reply With Quote
  #15  
Old 02-12-2016, 08:02 PM
4skin's Avatar
4skin 4skin is offline
Cact
Swollen Member
 
Join Date: Feb 2010
Posts: 8,694
4skin Good newbie
Reputation: 15
Are those contacts not part of the shift motor assembly ?
Seems those codes point straight at that as the problem
Did you clean the contacts or did it just start working after you
Pulled gears apart I'm trying to learn here
Reply With Quote
Reply


Thread Tools

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

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump



Powered by vBulletin® Version 3.6.4
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
Style Design By: Resourcelabz.se