Power / Starter Harness diagram & locations

[Black Venom 99]

Hello everyone,
It's been a long time since I posted, as my build went on hold (2008), and my car was stored due to getting married, purchasing a home, and starting a Family. I have now been continuing the build (99 Cobra), and have a quick question regarding installing the power harness that comes from the battery terminals, and includes wiring to the starter, brackets for mounting organization, harness for oil pressure (near oil cooler), other harnesses that are located near battery tray (which I labeled initially and plugged in), and ground terminals. I have had most everything else labeled as well as the Ford Service manual, but volume 1, which does not contain this specific electrical install.

I have most everything in place, the three brackets mounted (two on the lower front engine cover, one on the passenger side engine mount bolt leading to the starter, and one larger that is mounted to the bracket that holds the power steering reservoir). The question is, there is a ground terminal that has two white wires leading to the circular ground end. Since most of the harness is in place, this wire ends up near the fuse box on the drivers side by the windshield washer fill location.

I have searched many avenues and have not found any luck, with partially close answers that are from threads 8-10 years ago. But, no clear answer.

If anyone can chime in, it would be greatly appreciated. Whether it is where to find the diagram, or have on hand knowledge.

Thanks in advance, and if there are any questions for more clarity, let me know.

-Ronald

 

[_Lariat]

any photos? if its the wire I'm thinking of, there should be a plug that runs to the fuse box for a ground.

If needed, I can grab a photo from my wife's 99 to aid you.

 

[Blkkbgt]

Hello everyone,
It's been a long time since I posted, as my build went on hold (2008), and my car was stored due to getting married, purchasing a home, and starting a Family. I have now been continuing the build (99 Cobra), and have a quick question regarding installing the power harness that comes from the battery terminals, and includes wiring to the starter, brackets for mounting organization, harness for oil pressure (near oil cooler), other harnesses that are located near battery tray (which I labeled initially and plugged in), and ground terminals. I have had most everything else labeled as well as the Ford Service manual, but volume 1, which does not contain this specific electrical install.

I have most everything in place, the three brackets mounted (two on the lower front engine cover, one on the passenger side engine mount bolt leading to the starter, and one larger that is mounted to the bracket that holds the power steering reservoir). The question is, there is a ground terminal that has two white wires leading to the circular ground end. Since most of the harness is in place, this wire ends up near the fuse box on the drivers side by the windshield washer fill location.

I have searched many avenues and have not found any luck, with partially close answers that are from threads 8-10 years ago. But, no clear answer.

If anyone can chime in, it would be greatly appreciated. Whether it is where to find the diagram, or have on hand knowledge.

Thanks in advance, and if there are any questions for more clarity, let me know.

-Ronald

That ground terminal gets connected by a bolt to the radiator core support by your hood bumper/adjustable stop.

 

[52merc]

Could those "white wires" actually be gray? Two gray wires merge into a single eyelet that is attached to the front side power terminal of the fuse box. These are two fuse links that lead to the alternator B+ terminal. You have to lift up the little sliding door on the side of the fuse box to see those terminals. Here is a picture from my '01.

 

[Black Venom 99]

Could those "white wires" actually be gray? Two gray wires merge into a single eyelet that is attached to the front side power terminal of the fuse box. These are two fuse links that lead to the alternator B+ terminal. You have to lift up the little sliding door on the side of the fuse box to see those terminals. Here is a picture from my '01.
View attachment 1824986

Could those "white wires" actually be gray? Two gray wires merge into a single eyelet that is attached to the front side power terminal of the fuse box. These are two fuse links that lead to the alternator B+ terminal. You have to lift up the little sliding door on the side of the fuse box to see those terminals. Here is a picture from my '01.
View attachment 1824986

Yes Sir (pic below of mine, pic 1)! Thank you so much!
Pic 2, the red power wire leading off the positive battery wire, leads to the fuse box, I’m 99.9% sure, is that correct?

Pic 3, the red power wire, along with the bolt attached, any direction where this one connects? I may have potentially attached a different wire when I disassembled, and attached it so I wouldn’t misplace it. But it’s been so long, I’m a bit unsure.

Thank you and everyone for the quick help, very appreciated!
-Ronald

 

[Black Venom 99]

That ground terminal gets connected by a bolt to the radiator core support by your hood bumper/adjustable stop.

Thank you for the reply and help! That is a separate ground, that I have already attached, that lined up perfectly after I pinned in the positive and negative terminals to the uni-body right above the battery tray. Again, thank you so much!

 

[Black Venom 99]

any photos? if its the wire I'm thinking of, there should be a plug that runs to the fuse box for a ground.

If needed, I can grab a photo from my wife's 99 to aid you.

I have attached some photos within the thread. Thank you for the help!

 

[Blkkbgt]

Yes Sir (pic below of mine, pic 1)! Thank you so much!
Pic 2, the red power wire leading off the positive battery wire, leads to the fuse box, I’m 99.9% sure, is that correct?

Pic 3, the red power wire, along with the bolt attached, any direction where this one connects? I may have potentially attached a different wire when I disassembled, and attached it so I wouldn’t misplace it. But it’s been so long, I’m a bit unsure.

Thank you and everyone for the quick help, very appreciated!
-Ronald

Picture #1 is your fusible link from the alternator.

#2 connects to the fuse box terminal stud. That poweres up the fuse box.

#3 is very confusing. One end looks like your starter wire. The other looks (black cable) like the ground that is attached to the engine block.

Why are the joined together with a nut and bolt? Was there some kind of repair done to the harness and a black cable was used?

I would seriously investigate that situation. If it checks out I would install a proper splice at a minimum.

 

[52merc]

Here is the schematic for the fuse box wires. Pic 1 are the Circuits 290 (GY) and are the two fusable links that splice into Circuit 38 (BK/OG) and connect to alternator B+. The red wire in Pic 2 is Circuit 2037 and connects the battery positive [+] to the fuse box.

 

[Black Venom 99]

Picture #1 is your fusible link from the alternator.

#2 connects to the fuse box terminal stud. That poweres up the fuse box.

#3 is very confusing. One end looks like your starter wire. The other looks (black cable) like the ground that is attached to the engine block.

Why are the joined together with a nut and bolt? Was there some kind of repair done to the harness and a black cable was used?

I would seriously investigate that situation. If it checks out I would install a proper splice at a minimum.

Starter wires are already ran, and bracket that maintains routing / organization is mounted utilizing one engine mount bolt secured to the block.
But agreed, the red wire bolted to the black ground wire (pic 3) may have been placed like that quickly during disassembly, so I wouldn’t lose it. But shame on me for not labeling it, as I practically labeled all other aspects during the build. The black wire that it is bolted to, should be the ground, as you mentioned, that bolts to the block on the drivers side.
Thank you for your help!

-Ronald

 

[Black Venom 99]

Here is the schematic for the fuse box wires. Pic 1 are the Circuits 290 (GY) and are the two fusable links that splice into Circuit 38 (BK/OG) and connect to alternator B+. The red wire in Pic 2 is Circuit 2037 and connects the battery positive [+] to the fuse box.

View attachment 1825080

Thank you for this! Huge help!

-Ronald

 

[Black Venom 99]

Here is the schematic for the fuse box wires. Pic 1 are the Circuits 290 (GY) and are the two fusable links that splice into Circuit 38 (BK/OG) and connect to alternator B+. The red wire in Pic 2 is Circuit 2037 and connects the battery positive [+] to the fuse box.

View attachment 1825080

Thank you for this! Huge help!

-

Picture #1 is your fusible link from the alternator.

#2 connects to the fuse box terminal stud. That poweres up the fuse box.

#3 is very confusing. One end looks like your starter wire. The other looks (black cable) like the ground that is attached to the engine block.

Why are the joined together with a nut and bolt? Was there some kind of repair done to the harness and a black cable was used?

I would seriously investigate that situation. If it checks out I would install a proper splice at a minimum.

Another question. The fusible link from pic 1, where does the round end actually mount to specifically?
-Ronald

 

[Blkkbgt]

Thank you for this! Huge help!

-

Another question. The fusible link from pic 1, where does the round end actually mount to specifically?
-Ronald

It connects to the same stud on the fuse box.