Tips for removing fuse block and GEM? - Ford Truck Enthusiasts Forums

Go Back  Ford Truck Enthusiasts Forums > Super Duty/Heavy Duty > 1999 to 2016 Super Duty
Reload this Page >

Tips for removing fuse block and GEM?

Notices
1999 to 2016 Super Duty 1999 to 2016 Ford F250, F350, F450 and F550 Super Duty with diesel V8 and gas V8 and V10 engines

Tips for removing fuse block and GEM?

Reply

 
 
 
  #1  
Old 12-09-2010, 01:42 PM
WestCoastTodd
WestCoastTodd is offline
Freshman User
Thread Starter
Join Date: Feb 2010
Location: Vancouver, BC
Posts: 48
WestCoastTodd is starting off with a positive reputation.
Tips for removing fuse block and GEM?

Hi everyone,

I've got the dreaded windshield-leaking-onto-the-GEM problem. Little rust hole just above the glass, under the trim rubber. The truck has the usual weird effects - blower fan stays on, passenger airbag light flickers on and off, relays clicking randomly all when the truck is off.
I'm hoping that I've caught it early, and I just need to dry and clean the contacts on the GEM and fuse block. It seems tricky to get those out, and I don't want to start yanking on things. No direction in the Haynes manual. Any pointers? Do I need to remove the bolted-on connectors on the back of the GEM before removing? It's pretty tight in there, lots of little things to break.

Thanks,
Todd
 
Reply With Quote
  #2  
Old 12-09-2010, 05:11 PM
BobbyDiesel71's Avatar
BobbyDiesel71
BobbyDiesel71 is offline
Postmaster
Join Date: Apr 2005
Location: round rock, tx
Posts: 2,760
BobbyDiesel71 has a very good reputation on FTE.BobbyDiesel71 has a very good reputation on FTE.BobbyDiesel71 has a very good reputation on FTE.
details for your truck? yr, engine,etc?
 
Reply With Quote
  #3  
Old 12-09-2010, 08:24 PM
WestCoastTodd
WestCoastTodd is offline
Freshman User
Thread Starter
Join Date: Feb 2010
Location: Vancouver, BC
Posts: 48
WestCoastTodd is starting off with a positive reputation.
Right, good question: 2000 f250, 5.4L with automatic.

Thanks,
Todd
 
Reply With Quote
  #4  
Old 12-09-2010, 09:31 PM
JockD's Avatar
JockD
JockD is offline
Elder User
Join Date: Aug 2008
Location: Dallas, Oregon
Posts: 808
JockD has a very good reputation on FTE.JockD has a very good reputation on FTE.JockD has a very good reputation on FTE.JockD has a very good reputation on FTE.
Before 2002:

Remove he ground terminals from the battery. Remove cover trim from main fuse block area under the steering column. Using a 10mm socket, remove the two large plugs from the back of the fuse block. One bolt for each plug. Move the harness/plugs up out of the way.

Using a 10mm deep socket remove the two(?) nuts and one bolt (might be two bolts and one nut) from the top and bottom of the front of the fuse block. Manuever the fuse block in and down to remove it from the back of the supports.

Remove the GEM from the back of the fuse block by removing the bolts with the 10mm socket. Inspect and clean the contacts.

Install by reversing this procedure.
 

Last edited by JockD; 12-09-2010 at 09:35 PM. Reason: change to single battery.
Reply With Quote
  #5  
Old 12-09-2010, 10:41 PM
WestCoastTodd
WestCoastTodd is offline
Freshman User
Thread Starter
Join Date: Feb 2010
Location: Vancouver, BC
Posts: 48
WestCoastTodd is starting off with a positive reputation.
Perfect, thanks Jock. I'll pull it tomorrow morning, and hopefully a little drying time (and a touch of compressed air) will solve all those irritating problems. I'd really rather not have to cough up for a new GEM!

Thanks,
Todd
 
Reply With Quote
  #6  
Old 12-10-2010, 07:03 PM
WestCoastTodd
WestCoastTodd is offline
Freshman User
Thread Starter
Join Date: Feb 2010
Location: Vancouver, BC
Posts: 48
WestCoastTodd is starting off with a positive reputation.
I got the fuse block and GEM out without too much difficulty. It's a little tight working under there, but not too bad. I found unbolting the parking brake release lever helped a bit.

All the weird bugs are gone now too - the GEM was totally dry, but the two big connectors at the back of the fuse block were pretty wet. I also took the covers on those connectors off - there we a lot of water under those too.

Now, to try to half-assed seal up the windshield until I can really fix it in the spring. Damn rust.
 
Reply With Quote
  #7  
Old 12-11-2010, 01:37 AM
JockD's Avatar
JockD
JockD is offline
Elder User
Join Date: Aug 2008
Location: Dallas, Oregon
Posts: 808
JockD has a very good reputation on FTE.JockD has a very good reputation on FTE.JockD has a very good reputation on FTE.JockD has a very good reputation on FTE.
Sounds like you are making progress. Use some dielectric grease on/in the plugs when you put them back into the fuse block. It will help keep the water out.
 
Reply With Quote
  #8  
Old 08-03-2015, 09:39 PM
possum2possum
possum2possum is offline
New User
Join Date: Aug 2015
Posts: 1
possum2possum is starting off with a positive reputation.
To JockD I was re-installing a 2001 F-250 7.3 fuse panel and was wondering is there anyway to install the wiring harness blocks on the back of a 2001 F-250 7.3 super duty fuse block in the wrong hole.Hopefully the blocks will only install one way and That I cannot put one of the wiring harness blocks in the wrong hole. Please help me.
thanks,
george
 
Reply With Quote
  #9  
Old 08-17-2015, 02:54 PM
THEDUKE61
THEDUKE61 is offline
New User
Join Date: Aug 2012
Posts: 2
THEDUKE61 is starting off with a positive reputation.
Originally Posted by possum2possum View Post
To JockD I was re-installing a 2001 F-250 7.3 fuse panel and was wondering is there anyway to install the wiring harness blocks on the back of a 2001 F-250 7.3 super duty fuse block in the wrong hole.Hopefully the blocks will only install one way and That I cannot put one of the wiring harness blocks in the wrong hole. Please help me.
thanks,
george
They should go on only one way
 
Reply With Quote
  #10  
Old 07-08-2018, 12:32 PM
billium's Avatar
billium
billium is offline
Freshman User
Join Date: Jun 2009
Location: America's Hinterland
Posts: 26
billium is starting off with a positive reputation.
Couple of decent videos by other guys....

...you can hear the relays buzzing at about 4:00...

https://www.youtube.com/watch?v=Raxl...youtu.be&t=300

https://www.youtube.com/watch?v=HneD...youtu.be&t=617

I coated my PCB (printed circuit board) with CorrosionX "conformal coating" spray. I also sprayed it into the wire-way on the back of the fuse block. I pasted the plug sockets full of dielectric grease. My hope is that the grease will be a dam to keep further water out.
 
Reply With Quote
  #11  
Old 07-08-2018, 01:27 PM
Thejudge
Thejudge is online now
Junior User
Join Date: Dec 2017
Posts: 80
Thejudge is starting off with a positive reputation.
Did this job on my f150.

You can get contact cleaner like Blue Shower that is safe for electronics and will flash off and leave no residue.

I had my windshield pulled and replaced as well as removed the cowling under the wipers and used flexseal spray under that area to keep it from possible backing up into that area again.

I also made a makeshift form and sprayed against it with the flex seal to direct water away from possible running onto the fuse block under the hood right there if you run a water hose on the roof with the hood up you can see where a little dike area would be beneficial.

 
Reply With Quote
 
 
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
gkotlin
Excursion - King of SUVs
5
05-27-2017 08:50 PM
RdaivdL
1999 to 2016 Super Duty
16
12-07-2016 08:02 AM
not4show
1999 - 2003 7.3L Power Stroke Diesel
7
06-23-2016 04:25 PM
andrewzucker
1999 to 2016 Super Duty
1
03-02-2010 05:04 PM
pscrow86
1999 to 2016 Super Duty
1
11-24-2009 08:19 AM


Thread Tools
Search this Thread
Quick Reply: Tips for removing fuse block and GEM?


Contact Us Archive Advertising Cookie Policy Privacy Statement Terms of Service

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.