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Topic Review (Newest First)
02-20-2020 07:26 AM
NOODLES Negative cable should go to engine block, and to fender well. Positive is the larger wire from the starter, and to the under hood fuse block. You might want to check your 80 amp fuse in the fuse block now. Good luck....
02-13-2020 05:12 AM
gnob Just because a wire is black DOES NOT mean it is a ground.

OP learn some electrical theory or find someone who knows wtf they are doing before you burn your shit down
02-12-2020 11:15 PM
PhantomTweak IF I were a betting man, I would say any black, heavy gauge wire would go to the negative terminal.
One way to be sure would be to measure for continuity between either black wire out of the bundle to a good ground. The engine block, the body (a bare, clean, metal spot), or maybe even the head. As long as you use a good, clean, bare metal location to test for continuity to ground. Get even a cheapo multimeter, like from Harbour Freight, set it to OHMs and put one lead on the point you choose to use for ground, and one on the terminal of the black wire in the bundle. If it reads 0 ohms, or close to, on the lowest ohm scale, it should go to the negative battery terminal.
You should have a pretty heavy gauge red wire on the positive terminal that goes straight to the starter, I believe. I used 4 gauge, I think it was when I replaced mine. Maybe 1-0 . It sounds like the blue wire that goes to the underside of the 80 amp fuse is the fusible link wire that feeds the fusebox in the engine compartment. From that wire, all the truck's electrical systems get their power, through the individual system fuses.
I used a pair of 8 Gauge wires from the negative terminal, one to the side of the fender (body ground) and one to the place the engine grounds to, the AC bracket.
There should be four more ground spots, one that goes from the firewall to the engine hoist hook on the rear driver's side, basically it grounds the head(s), one from the alternator to the PS pump bracket, one in the intake manifold that has two bundles in one big terminal, under one of the intake manifold attachment nuts, and one in the passenger compartment, behind the driver's side kick panel, behind the fuse box there.
The only two that actually go to the battery directly though are the one to the fender well just in front of the battery, and the one down to the engine. If there's no AC compressor or bracket, there are a number of places near where it would go that you can attach a good sized ring terminal to the engine.

These are all on the 87 4Runner. Your Mileage may vary
02-12-2020 09:05 PM
sethsource
Quote:
Originally Posted by erictylers1 View Post
Are you asking if the positive battery cable goes to the starter from the plus sign thingy on the battery and the negative to ground?

That’s the red one.

By “LUG” do you mean Battery Terminal?

No need to add “I don’t know anything about electrical” at this point.
All of my cables that are supposed to plug into the battery are black. The fender ground is black, the 2 cables coming from the harness are black. Except for the blue cable coming from the fuze box, that's blue. I'm asking, out of these cables (ground connected to fender, fuze box blue cable that's connected to the 80amp fuze I think, and the two thick guaged cables coming from the harness) which of those do I put on which battery terminal?
02-12-2020 08:55 PM
erictylers1 Are you asking if the positive battery cable goes to the starter from the plus sign thingy on the battery and the negative to ground?

That’s the red one.

By “LUG” do you mean Battery Terminal?

No need to add “I don’t know anything about electrical” at this point.
02-12-2020 08:53 PM
sethsource I've looked everywhere for like information on which cables to attach to the battery and where but I can't find any. I'm probably just retarded
02-12-2020 08:51 PM
sethsource
[22re] [1990 pickup] Wire configuration

I removed my battery and took out my shitty lugs and I can't remember which wires went to which lug. Positive or negative? The way I have it now I'm just melting ground cables so it can't be right. The only thing I have connected to negative battery terminal is my fender ground. And everything else is on the positive. I have zero knowledge of electrical systems and I wanted to post this in the noob section but apparently you can't access it from a mobile device, so any information I'll be grateful for.

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