In this video, I explain how to properly remove and reinstall your H3’s fuse box.
You need to be careful to not bend any pins or damage the wires if you decide to do this!
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Hope it helps!
I want to thank you for this video, i was checking relays and i accidentally pulled the entire fuse box out of its holder, i pushed it back down, shut hood and the truck would not start, went back to fuse box and checked everything and all was good,still no start, so i went to u-tube and watched this video and found out why and where i screwed up at, i removed fuse box and found i had crushed the white holders to the bottom of fuse box,so i removed them and reinstalled them with two tie wraps to hold them togather, put back togather, and it fired right up, saved a wrecker and a delalership fee for fixing it….. Thanks again…..R.S.G.
You did a good job, I like it. I can suggest a good way to promote video – service u t i f y)
How do you know if you have bad connections with the fuse box
YES, the problem is when reinstalling the fusebox make sure those U, C white hooks on the side are sticking up! (CRUCIAL STEP!) Mine were down, somehow? I figured out I could take the bottom piece off. If you're in this situation or cant' push the wires to get them up. There are 2 tabs on each side. (I used a very small flathead screwdriver to gently move the tabs to remove the bottom. Once the bottom is off you easily push it up and hear it click in place and the C hooks are sticking up properly and now you can place the top fuse part easily and hear it click on both sides. Man, i got lucky I didn't bend metal pins or break the damn thing! Thanks for the heads up!!! JK! Yours is the best video for Removing H3 Alternator on Youtube and you don't have to bend AC lines (screw that I don't need a break or leak with w/my AC!) No problem removing and reinstalling new alternator. Thank you, Sir!
Very useful and detailed video, thanks for sharing it !!!!
Which fuse is LH turn
Man, I wish I would have seen this earlier this week! Just had a fuse that went out, one of the bigger ones, and $200 later, it’s fixed.
Hey good to see a H3 Doctor helping out us H3 owners… Thank You —Peace ! ! ! 🙂
My 07 H3 reverse lights work, but the reverse wire near the shifter has no power when its put in reverse. You think this is a fuse problem?
Great job detailing the process with close-up videoing and explanation! I’ve recently acquired a 2008 Hummer H3 Alpha that the previous owner had let sit parked for many months. I’ve got a few quirky weird and somewhat unexplainable electrical issues.
The one that is most annoying involves the rear drivers side tail/brake light staying on constantly – EVEN WITH THE KEY OUT OF THE IGNITION AND VEHICLE LOCKED! Coupled with this issue is the left rear turn signal and brake light do not function at all and neither does the top center mounted third brake light. Upon checking my fuses, I discovered that when I pulled the fuse #20 (rear turn signal, hazard signal) the light went off, but still didn’t activate the brake, turn or third brake light.
I’m planning to use your video guide to take out the fuse box to give it a complete and thorough cleaning with CRC electrical cleaner, check/replace all the fuses and clean all of my electrical connections that I can get to. If you or anyone has experienced these issues, please reply or pm me with how you fixed your similar problems with your Hummer I
Thanks so much.
Thank you. Saved me! I linked this video to a hummer forum thread where for YEARS people have been incorrectly following the advice to FORCE these connectors together. The original photos from 2011 show the connectors in the lowered position with the hooks folded. So.. everyone is just crushing those hooks. Including me. Then things weren't working, just like many of the comments in the old thread.
Thanks ,this helped a lot.l have never seen the under side of a fuse box,being a DIY,,but you took the time to show the pros +cons of getting at the alternator.Good job!!