G.E.M./Fuse Box Removal, Disassembly, & Fix! / Water Leaking On Body Control Module! 1997-2003 F-150

In this video I am showing you how I removed, disassembled, cleaned, sealed up, and re-installed my GEM/body control module on my 2003 F-150. This applies to all 10th generation F-150s, which range from 1997-2003.
Just like I said in the video, to fully fix the issue you’d want to also re-seal your whole windshield.
I hope it was helpful!

TIMESTAMPS:
0:00 - Intro/Symptoms
6:22 - GEM Removal
12:00 - GEM Disassembly
19:02 - GEM Cleaning and Sealing
27:25 - GEM Reassembly
32:32 - GEM Reinstallation
36:14 - Final Testing
39:13 - Dash Reinstallation
40:37 - Outro

Tools used in this video:

Other related videos:

Please note that I am not saying that you have to do exactly what I say or do in this video. This video is only a guide to show you the steps I took to do the job. Perform these repairs at your own risk! Safety first!

[sigwater]

I want to say thank you for making this video. I never new what a fuse box looked like inside and certainly would not have attempted to take it apart without seeing this done. My ford had the same issue and I successfully took it apart and fixed er up. Thanks again. I will make one comment for others who are going to do this. I did this in reverse order, meaning I set each panel on top of the other so I could set the metal pieces in place without flipping them over. You have to snap each metal piece in place and that is much easier to do if the black insulator panel is set in place first. This way was much less of a fight for me. Cheers.

[jhillwine]

Excellent video - I especially needed help with removing the fuse box/GEM. I found one small enhancement for your consideration - remove the lower driver's side kick panel to allow access to one more bolt that holds the metal bracket. Removal of this bolt allows an extra 1/2" that is helpful when removing (and especially when re-installing) the fuse box/GEM. Thanks for your help.

[georgetoney]

Thank you for your work on this video. My 2001 was having problems similar to your video. Took out the fuse box and didn't see much corrosion. Then looking closer at fuse block found some green stuff. Followed your instructions on how to disassemble the block and found water inside. Thank you once again.
Now time to have the windshield fixed

[davecox]

man im glad I came upon your video my truck was trying to start any time I would turn the headlights on no radio no heater panel now i know what im up against great job great video you have a lot of patience and a good memory and to ad it was rainy when this problem occurred

[ProfKaoss]

Dude, thank you! Your video showed me how to fix the problem myself, saving me $800! Thanks for taking the time to make this video, I really appreciate it.

[williamcaddell]

GREAT video! Really well done. Edited perfectly. Helps solve my problem. Until this, I didn’t have a clue how to fix. Thank you!

[paulsosa]

Amazing attention to detail you sir are a real mechanic anyone else would have just thrown a new fuse box in this truck 💯👍💪

[norinosleftbehind]

Thank you so much for the amazing video, I purchased a new gem module and interior Fuse box off eBay and it fixed all my issues, I was unable to get my truck out of 4lo until now! Thanks again!!

[texascubs]

Best in-depth video on this issue. Well done, and thank you.

[petrokrasnov]

Above and beyond average mechanicing I was very impressed! Thank you! So it looks like GM modules may not actually be the culprit but the fuse circuit capsule!

[neilziesmer]

MAN YOUR NOT AFRAID TO GET INTO IT, AWESOME REPAIR

[tedross]

bought a used GEM a while back and the 4x4 worked once since I installed it. Among other things not working properly. Just bought a used fuse block and will be taking it apart this weekend. I have already cleaned and inspected my original GEM. Going to rebuild the new block this weekend and mount the old GEM to it before I take out the one that's in there. I believe some ppl might be replacing GEMs when in fact it is the fuse block. Great explanation of the whole process. New sub. Thanks for precise instructions. Then a new windshield.

[Vemiant]

Great video !! I had a lot of the same issues on my 99 Expedition. Car tried to turn itself on, and burned out the starter, dash lights wouldn't turn off, wipers going crazy, same speedo issue as you! Battery kept going bad when the car was off. Finally took it to an auto shop to see where the parasitic draw was and it was the GEM module! All makes sense now. I'm glad I figured this out in summer so I can work on resealing the window before winter comes.

[dojonishi]

Great video! Thank you ! I followed exactly what you did and now everything is functioning as it should. It took me a few hours to take it apart, clean and reassemble. It was surprisingly fun to do. Thanks again.

[samuelrulloda]

I’ve got exactly the same problem with my 2003 Triton model. The only difference was it burned my starter running with the engine while in an ON position. Very wierd. I thought it was a faulty ignition switch and ignition cylinder which I replaced but man, I still burned 2 starters in one day trying to fix it, so I ended up making a separate toggle switch for my starter motor😁😁.
Thank you for your patience making this video. 🙏🫶🫶🫶
New subscriber here.

[calebcannon]

My 99 F-250 is intermittently having similar issues. I have noticed a small drip near the fuse box too. From the looks of it, the fuse box and GEM are very similar. I'll keep you posted on if this fix is applicable to the Super Dutys too. Excellent video man. Keep puttin' em out! I'm sure you've got a lot of hours into editing/shooting and it shows.👊

[Dimbochan]

I have the exact same problems and plan to get a used fuse box from a salvage yard. This video is the best on exactly how to remove the fuse box and GEM, excellent explanations thank you so much!

[billycav]

Thank you. You saved me a lot of trouble. I was having same problems my windshield leaked a few years ago i thought i got lucky. When i got all the corrosion fixed started blowing fuse for the radio and dome lights.Found the under the hood light was causing that.

[Horizon___Adventures-]

Yup I had this issue. Still haven’t fixed it, glad I found this video

[flynn]

The fact you don’t have more likes on this amazes me 🤯 amazing video man