What are these connections for? Starter solonoid connections *pics*

[TheUser]

What are these connections for? They connect to the starter solonoid to the same side as the positive battery cable(of course), but I'm not real sure what they're for and I'd kinda like to know. I've searched and checked all of the diagrams I have saved.

The #3 item wire appears to be bad (the yellow connector thing is all melted and the wire is exposed, so should I cut it and solder in a new wire?

Also, What is this one pin connector found hiding down in the front drivers side part of the fenderwell?

Additionally, I need to know where the wires from the voltage regulator on the alternator go to. My voltage reg. was fried, and I warrentied out my alt, but want to check the wiring before I put the alt back.

Thanks in advance. Wanted to get all of this in one post instead of making more posts than necessary since HISSIN will prob. catch this (hopefully) and clear it all up for me in one swoop

 

[Stang8URMPRT]

1) Is the power to the electric window motors if I remember correctly.

3) Power wire from the alterntor.

Others i dunno.

 

[Juiced88Coupe]

#3 if that is a 20Ga fusible link it powers the fuel pump.

 

[TheUser]

Thanks.

Also,

This thing is supposed to be a 20amp fuse link to starter relay...

How is it a fusible link if it's just a wire? What is this thing for anyway?
EDIT: Unless it's the connection for the fuel pump?

 

[Saleen0679]

How is it a fusible link if it's just a wire?
EDIT: Unless it's the connection for the fuel pump?

A fusible link is a piece of wire of a specific length that is smaller in gauge (so it burns out first) than the circuit it is supposed to protect. The insulation is also made of flame proof material.

 

[jpctln]

Isn't that little pin connector the smaller one of the diagnostic ports?

 

[TheUser]

Isn't that little pin connector the smaller one of the diagnostic ports?

Nope. The diagnostic ports (big and little) are still in the cover connected to the fenderwell.

A fusible link is a piece of wire of a specific length that is smaller in gauge (so it burns out first) than the circuit it is supposed to protect. The insulation is also made of flame proof material.

Ok, that makes sense. I always thought the little box things like #1 and #2 in the first pic were fusible links.

So that last picture is a fusible link, but what exactly is it supposed to be protecting?

Thanks guys.

 

[TheUser]

bump

 

[95GTAODE]

Maybe this will help...

Thick wire(Black/orange stripe or yellow) from Bat. post on the Alt. to the + side of the solenoid, the wire from terminal marked F on the VR to the Field or F post on the alt, and the A and S terminals on the VR get tied together. On my '79 they run to one of the thick yellow wires that is attached to the + post on the solenoid, but I've also heard that it can go to the S post on the solenoid as well. That should be all you need.

 

[Saleen0679]

Ok, that makes sense. I always thought the little box things like #1 and #2 in the first pic were fusible links.

So that last picture is a fusible link, but what exactly is it supposed to be protecting?

The car has three protective devices. Fuses, circuit breakers, and fusible links. The silver box in Pic#1 is a circuit breaker it protects the power windows and other things if you have a vert.

Pic#1, Wire #2. Looks like the big yellow wire that splits off into three black and one brown fusible links. The brown link (orange/light blue) goes to the fuel pump relay. One of the blacks (black/yellow) goes to the rear window defrost, another black (black/orange) goes to fuse #8 in the fuse box, and the last black (yellow) goes to the ignition switch and fuse #1. Colors in parentheses are the color of the wire connected to the link.

Pic#3. If that's a 20 gauge blue fusible link then it goes to the EEC.

There are also two other fusible links, a green (black/oragne) and a brown (yellow/white) which eventually end up at the alternator.

Does that connector in Pic#2 have two black and white wires connected to it?

 

[TheUser]

alrighty, with your guys' help, I pretty much have the gist of where these wires go and do. The Fusible link that turns into the yellow/white wire for the Alt and I think the little brown wire is torn up about an inch down from where the little circle end thing is that goes onto the solonoid lug. It's above where the two wires join. I need to replace it, but Do I just cut the plastic covering thing off where they join and solder them together onto a larger (10-12ga) wire? I know that's where my alt. power comes from, so I need to make sure it's done properly

Saleen: The little connecter in the 3rd pic does have two black/white wires going into it

 

[Saleen0679]

From what I can see on my car without tearing off a bunch of tape is that the Yel/Wht wire connects to a brown fusible link. The brown fusible link then joins up with the Or/Bk wire and both connect to a green fusible link which then connects to the relay. By your description it sounds like someone separated the circuits. I think my brown link is soldered to the Or/Blk wire under the tape.

Check out this color diagram by Tmoss http://www.veryuseful.com/mustang/tech/engine/images/fuel-alt-links-ign-ac.gif

What do you mean by your brown link being torn up. If the link has blown then you should replace the whole link. You never know the condition of the link under the insulation. If it's just the insulation for the brown link that's messed up I don't think it would do too much harm to snip a little off for a repair job.

From what I've been able to dig up the connector with the two black and white wire is a windshield washer pump test connector. Beats me how it is used. I didn't even know it was down there under the rest of the harness. Mine probably hasn't seen the light of day.

 

[TheUser]

Saleen: Thanks for all of your help. I apologize for not checking out that website...I even thought about it, but I thought I had saved all of the diagrams from the website, but apparently must have missed the one you linked me to as it lays it all out perfectly.

I was going to take a picture before, but I was leaving for work in a hurry, so I didn't have time. Here's a pic of the bad wire. What should I do?

 

[Saleen0679]

By the looks of that picture you're definitely going to have to replace the green link wire and most likely the brown one too, although I can't see it too well. From the little piece I can see it looks like it took a hit too since it's in the same circuit. The green link is 14 gauge and the brown link is 18 gauge (match the gauge, not the color. Some fusible link wire is all black no matter what gauge.) You should be able to pick up some fusible link wire at the parts store and you're going to need another ring terminal.

 

[stang22]

Does anyone have any pics of what one looks like when it is burned out? Does it burn through and will be visibly obvious, or do you just test voltage on both sides and figure it out that way? Thanks,

Tim

 

[HISSIN50]

Tim, it can feel rubbery or even looked burned. and as you know, it probably wont show 12 volts on the output. an inductive ammeter can show how much juice it flows (one strand of wire can flow 12 volts, so that can be misleading).

 

[stang22]

Thanks JT, good info. I have never actually seen one burned out, but was just curious as to what it might look like. With all of electrical problems I "THOUGHT" (now fixed) I was having from not getting fire, I wanted to make sure I knew what to look for. Thanks.

 

[TheUser]

By the looks of that picture you're definitely going to have to replace the green link wire and most likely the brown one too, although I can't see it too well. From the little piece I can see it looks like it took a hit too since it's in the same circuit. The green link is 14 gauge and the brown link is 18 gauge (match the gauge, not the color. Some fusible link wire is all black no matter what gauge.) You should be able to pick up some fusible link wire at the parts store and you're going to need another ring terminal.

ok, well I don't understand because the black/orange and the brown both merge into the green wire, so where should I replace it at? I know it has to be replaced, but can I just chop the top green part off and solder a new piece on at the top above the plastic thing where they merge? The brown wire looks fine as far as I can tell.

 

[Saleen0679]

The brown wire looks fine as far as I can tell.

That will save you a bit of work. I couldn't tell the condition of the brown wire. Just double check the condition throughout the length of the link for any breaks or even burn spots on the insulation. Any doubts, just change the link. If the brown link is in good shape then all you have to do is get some 14 gauge fusible link wire to replace the green and a new ring terminal and you're good to go. You should be able to peel off that tape or heat shrink where the brown and Or/Bk come together, cut off the green link wire, clean it up a bit and that will the connecting point for your new 14 gauge link.