fuse box power supply wire..
01-28-2015 | 05:00 PM
#44
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Please help a student
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http://goo.gl/forms/3xTu20kBb3
Please if you have any questions feel free to e-mail me at mtc2@fpu.edu
01-10-2018 | 09:15 PM
#45
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Good Mod!
I did the same mod with large strand copper 8 gauge wire (see below post, someone asked about it. The post below was posted in April 2010). The part that was supposed to be the fusible link was actually very corroded and almost broken. I think it was 14 gauge (two short to read the size, and that seemed pretty small). It was spliced to a 10 gauge wire leading into the fuse box. I do intend to do more research into the fusible link part to find the right size wire, but for now, my truck starts like new, and is running like new! 1992 Toyota Pickup Extra Cab 4X4 3.0 engine.
Last edited by Lexor15; 01-10-2018 at 10:03 PM.
01-10-2018 | 09:23 PM
#46
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fuse box power supply wire..After reading another post (that i can not find anymore) about replacing the power supply wire to the fuse box with good results, i decided to do the same after i noticed mine was kinda old and crusty. turned out its a good thing i did because the stock wire is puny already and had broken, only to have the PO splice it back together with even smaller wire.
After the install i am amazed at the HUGE difference i noticed in my electrical operation and would call this a must do. the exterior and interior lights are noticeably brighter. the radio sounds much better and the truck even seams to run better (more power to ignition and sensors maybe).. and yes the horn is also much louder. also noticed less voltage drop when rolling up more then one window at a time.
I really wish i had taken pictures and will probably go back out and take it apart to take some tomorrow. I will try to give you a step by step without the pictures.
NOTE: I own and performed this on a 4WD 2nd gen 4runner with a 3vze and an automatic transmission and am not sure on the other generation pickups or 4runners. but should be very similar.
I used 4gauge wire with pre-connected hole tabs on each end of a 14 inch cable. that is all i had to buy, but you may have to buy a positive terminal connection with an extra bolt or one that uses a clamp to hold the battery cable to the terminal.
make sure the first thing you do is disconnect the battery, both positive and negative, and remove the battery to give you some extra room.
unbolt the fuse box by removing the 2 10mm bolts that hold it on the passenger fender.
then take off top cover and flip the box over and remove the bottom cover.
remove the main fuse from the fuse box, it is held in with a clip system similar to most connections. it will come out by lightly prying on the clip and pushing it out of the bottom of the fuse box.
follow the stock wire to the side it mounts to on the fuse, the stock wire is crimped to a plate that spans across two connections on the side of the main (80 amp) fuse, the crimp that holds the stock wire to the plate needs to be cut off at the bottom of the plate to do the mod with the same gauge wire i used. then use the factory bolt that holds on the other wire above the main supply clamp you just cut off to bolt on the new cable.
then run the new cable to a mounting place on the positive battery connector.
install the main fuse back into the fuse box, reversing the removal steps.
run the new cable through the stock location on the bottom fuse box cover and install bottom cover. (NOTE: the new cable was applying a small amount of pressure on the bottom cover causing it to bulge slightly, but should not cause the bottom cover to come off.)
bolt the fuse box back into place and re-install the battery making sure all connections are tight and clear of other connections.
if you have questions feel free to ask.. should take about 20-30 min for an average weekend wrencher.
Good luck!
After the install i am amazed at the HUGE difference i noticed in my electrical operation and would call this a must do. the exterior and interior lights are noticeably brighter. the radio sounds much better and the truck even seams to run better (more power to ignition and sensors maybe).. and yes the horn is also much louder. also noticed less voltage drop when rolling up more then one window at a time.
I really wish i had taken pictures and will probably go back out and take it apart to take some tomorrow. I will try to give you a step by step without the pictures.
NOTE: I own and performed this on a 4WD 2nd gen 4runner with a 3vze and an automatic transmission and am not sure on the other generation pickups or 4runners. but should be very similar.
I used 4gauge wire with pre-connected hole tabs on each end of a 14 inch cable. that is all i had to buy, but you may have to buy a positive terminal connection with an extra bolt or one that uses a clamp to hold the battery cable to the terminal.
make sure the first thing you do is disconnect the battery, both positive and negative, and remove the battery to give you some extra room.
unbolt the fuse box by removing the 2 10mm bolts that hold it on the passenger fender.
then take off top cover and flip the box over and remove the bottom cover.
remove the main fuse from the fuse box, it is held in with a clip system similar to most connections. it will come out by lightly prying on the clip and pushing it out of the bottom of the fuse box.
follow the stock wire to the side it mounts to on the fuse, the stock wire is crimped to a plate that spans across two connections on the side of the main (80 amp) fuse, the crimp that holds the stock wire to the plate needs to be cut off at the bottom of the plate to do the mod with the same gauge wire i used. then use the factory bolt that holds on the other wire above the main supply clamp you just cut off to bolt on the new cable.
then run the new cable to a mounting place on the positive battery connector.
install the main fuse back into the fuse box, reversing the removal steps.
run the new cable through the stock location on the bottom fuse box cover and install bottom cover. (NOTE: the new cable was applying a small amount of pressure on the bottom cover causing it to bulge slightly, but should not cause the bottom cover to come off.)
bolt the fuse box back into place and re-install the battery making sure all connections are tight and clear of other connections.
if you have questions feel free to ask.. should take about 20-30 min for an average weekend wrencher.
Good luck!
01-10-2018 | 11:39 PM
#47
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Joined: Sep 2007
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From: San Francisco East Bay
LOL!
If I read your write up correctly, you just shorted out the fusible link. http://www.trdparts.com/Toyota-Part-...2991-35020.htm It's your 4runner, and you can put in over-sized fuses for all I care, but the fusible link might some day keep your rig from catching on fire. And now you don't have one.
The replacement link isn't that expensive, and it's plug-and-play. Give it some thought.
Good luck!
If I read your write up correctly, you just shorted out the fusible link. http://www.trdparts.com/Toyota-Part-...2991-35020.htm It's your 4runner, and you can put in over-sized fuses for all I care, but the fusible link might some day keep your rig from catching on fire. And now you don't have one.
The replacement link isn't that expensive, and it's plug-and-play. Give it some thought.
Good luck!
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Jimkola (08-03-2021)
01-11-2018 | 06:43 PM
#48
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scope103, I agree with you! My Toyota dealer did not have the fusible link in stock and I needed my truck to run right away (it was pretty much dead, and it is a daily driver). I will be getting the proper fusible link within the next week or so, depending on availability. I certainly want that link in there!! My 1992 Pickup Extra Cab Deluxe is pretty much stock as well. Minor upgrades. Better (harder) suspension, paint job (10 years ago), Some LED lighting, etc. P.S. I did not put bigger fuses in it, but that one fusible link was pretty much toast!
Last edited by Lexor15; 01-11-2018 at 09:56 PM.
01-18-2018 | 09:52 PM
#50
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My FL came in today through my Toyota Dealer (at first, they wanted me to order a whole wiring harness, which is very expensive), but they found one in CA. I was reluctant to order online, and did not, but scope103 did give the right part number, and the part will be installed by me on perhaps Sunday 01/21/18, I hope. We are experiencing rain here at the moment, droping temperatures, and snow by morning and beyond. I hope I can get it done on Sunday, but if not, the temp mod to keep my truck running will keep me able to get to work. Sometimes we need true 4X4 power here, and I have it.
Last edited by Lexor15; 01-18-2018 at 10:35 PM.
01-18-2018 | 10:55 PM
#51
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BTW, nice jump scope103. I've had my Toyota Truck for quite some time. Yes, I love it, but some parts do break once in a while. I'm on top of it. I've done a few repairs in my time. It sounds like you have as well!. Keep up the good work!
01-19-2018 | 09:49 PM
#53
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FL replacement.
Trucks as old as mine need a little TLC now and then. I'm sure there are more folks out there that could benefit from our exchange of maintenance/repair talk!
Last edited by Lexor15; 01-19-2018 at 10:01 PM. Reason: Addition
01-20-2018 | 03:50 PM
#54
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Fusible link replacement.
The job is done! The cold did not deter me today. I have attached a few photos. I hope it helps someone.
Last edited by Lexor15; 01-21-2018 at 01:38 PM. Reason: Adding photos.
01-23-2018 | 11:45 AM
#55
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01-23-2018 | 07:27 PM
#56
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Rad4Runner, you are welcome! I couldn't put captions on the photos as planned, but they are in order. The first photo is the new Fusible Link assembly from Toyota. I had just taken it out of the packaging. The rest of the photos are in order as I proceeded, with the last photo showing the finished work.
Last edited by Lexor15; 01-23-2018 at 07:28 PM.
01-29-2018 | 04:21 PM
#58
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From: San Francisco East Bay
... If I read your write up correctly, you just shorted out the fusible link. http://www.trdparts.com/Toyota-Part-...2991-35020.htm ...
01-29-2018 | 07:49 PM
#60
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82991-35020 at your local Toyota dealer. I recommend you do not do it online, unless you feel lucky! My Toyota dealer thought I should buy an entire wiring harness, until I pointed out the part number. It took two weeks, but I got my part!
Last edited by Lexor15; 01-30-2018 at 05:37 PM. Reason: I took out wording that was accidentally pasted into the sentences.
