ESOF either GEM or motor how do I tell? - Ford Powerstroke Diesel Forum
User Tag List

 
LinkBack Thread Tools Display Modes
post #1 of 5 Old 02-17-2010, 10:00 AM Thread Starter
Powerstroke.org Rookie
 
Join Date: Mar 2009
Posts: 12
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
ESOF either GEM or motor how do I tell?

I have a 99 f250 with ESOF. I just bought the truck and when I got it it would not go into 4 wheel low. No deal so I bought it. Well, I got it home and replaced the glow plugs. Started it and drove around, tried 4 wheel drive and it would not come out of 4H? So I crawled under and hooked 12 volts to the motor and put it back in 2H(motor works???).

I have checked the switch and it is good. I have 12volts supply at the relays, but no clicking with the switch.

Reason I suspect the GEM
1.) I also have an intermittent problem with the "off" light on the passanger side air bag which flashes 27 on the airbag light.
2.) I have a ABS light?????
3.) Intermittent door ajar.

Does anyone know how/can you test a GEM?

Does any one have a print of the wiring diagram so I can ring out the connections?

I have read that the GEM is either behind the glove box(did not see) or behind the fuse panel(I assume the internal) any know for sure?

Finally, where can i get a GEM reasonable? Preprogrammed would be good.
tdnp is offline  
post #2 of 5 Old 02-17-2010, 04:06 PM
JCW
Premium Member
 
JCW's Avatar
 
Join Date: Jan 2009
Posts: 102
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
check out this thread it has some diagrams that might help you.

HELP HERE PLEASE! 24 views and NO ONE KNOWS?
JCW is offline  
post #3 of 5 Old 02-17-2010, 04:10 PM
Compression Ignition Addict
 
Join Date: Oct 2008
Posts: 263
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
GEM is on the left side of the internal fuse panel, dont bother changing parts until you get the codes read out of the gem. Autoenginuity is a great tool for that, or any ford enhanced scan tool capable of reading gem codes. More than likely there will be a code stored that will point you right to the problem.

2002 F350 SRW Crew Cab Shorty Lariat
Torredor Red - 7.3, Viper 5701
Silverline 4" TB Exhaust
Power Hungry Performance FU Chip
Autometer GS Gauges
md18 is offline  
post #4 of 5 Old 02-17-2010, 04:47 PM
JCW
Premium Member
 
JCW's Avatar
 
Join Date: Jan 2009
Posts: 102
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Where can I buy a good Autoenginuity scan tool?And which one ?
JCW is offline  
post #5 of 5 Old 02-17-2010, 04:54 PM Thread Starter
Powerstroke.org Rookie
 
Join Date: Mar 2009
Posts: 12
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Thanks

Well I pulled the GEM tonight just to look for corrosion--none found. I guess that I will have to find someone to read the codes. Thanks for the info
tdnp is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Ford Powerstroke Diesel Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may 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 Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome