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1979 bronco resistor wire help!

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Old Apr 20, 2023 | 11:18 PM
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1979 bronco resistor wire help!

Tore into my wiring harness and found a few problems
1. Green with yellow wire melted to thr passenger side, the reason my passenger door doesn't turn on thr dome light a assume
2. There a 2 wires labeled "resisitor wire do not cut or splice" in my dash, 1 black and 1 red. Idk what the black on is, anyone got a clue? But thr red one I think is the ignition coil resistor wire. It comes from thr ignition (where it shares a plug with a red with green wire) out into a loop and back into thr dash.
The "loop" is burnt real bad and needs replaced
A. can it be the same gauge wire but just a new section soldered in?
B. Can i just cut it and cap it? Or do other things run off it?
C. Why not just run 12v to the coil?
​​​​thanks for any information, need it done soon for graduation photos

Back of the ignition switch with thr resistor wire and red with green wire

Melted/burned resitor wire


 
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Old Apr 21, 2023 | 04:35 AM
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Originally Posted by 79b5.8c
Tore into my wiring harness and found a few problems
1. Green with yellow wire melted to thr passenger side, the reason my passenger door doesn't turn on thr dome light a assume
2. There a 2 wires labeled "resisitor wire do not cut or splice" in my dash, 1 black and 1 red. Idk what the black on is, anyone got a clue? But thr red one I think is the ignition coil resistor wire. It comes from thr ignition (where it shares a plug with a red with green wire) out into a loop and back into thr dash.
The "loop" is burnt real bad and needs replaced
A. can it be the same gauge wire but just a new section soldered in?
B. Can i just cut it and cap it? Or do other things run off it?
C. Why not just run 12v to the coil?
​​​​thanks for any information, need it done soon for graduation photos

Back of the ignition switch with the resistor wire and red with green wire.
D7AZ-12250-A .. Resistor Wire - Ignition Coil - 49" long - Red with Green stripe - 1.30-1.40 ohms resistance (Motorcraft DY-213) / Obsolete ~ Available NOS & from auto parts stores

1977/89 F100/350, Bronco & Econoline // Misc 1977/89 FoMoCo Passenger Cars
 
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Old Apr 21, 2023 | 08:38 AM
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Originally Posted by NumberDummy
D7AZ-12250-A .. Resistor Wire - Ignition Coil - 49" long - Red with Green stripe - 1.30-1.40 ohms resistance (Motorcraft DY-213) / Obsolete ~ Available NOS & from auto parts stores

1977/89 F100/350, Bronco & Econoline // Misc 1977/89 FoMoCo Passenger Cars
Thank you! Is this a special wire or can i solder in a normal wire of equal length/gauge? And what gauge wire would it be, 16?
 
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Old Apr 21, 2023 | 09:08 AM
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What kind of ignition system are you using? If it's stock it has to be a resistor wire. Need to find the reason it burned in the first place.
 
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Old Apr 21, 2023 | 09:41 AM
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Originally Posted by 79b5.8c
Thank you! Is this a special wire or can i solder in a normal wire of equal length/gauge? And what gauge wire would it be, 16?
Most likely 16 gauge wire. I'd buy a new resistor wire, splicing the existing wire is a no no.

 
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Old Apr 21, 2023 | 10:22 AM
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https://www.ebay.com/itm/185661860032
 
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Old Apr 21, 2023 | 10:27 AM
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Originally Posted by DB429SCJ
I wonder if the correct resistor wire is in this package, as the original was red w/a green stripe.
 
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Old Apr 21, 2023 | 10:37 AM
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Originally Posted by DB429SCJ
I see al these with eash end like bullet connectors, but I know for sure that my 1 end of it at least goes into my ignition switch with another wire, why don't any replacement I see have that?
 
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Old Apr 21, 2023 | 11:19 AM
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Originally Posted by NumberDummy
I wonder if the correct resistor wire is in this package, as the original was red w/a green stripe.
I believe

https://www.fullsizebronco.com/threa...-needed.89059/ This guy hada similar situation
this is the wire I need, with the brown wire and the plug with 2 wires in it
 
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Old Apr 21, 2023 | 11:20 AM
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Originally Posted by NumberDummy
I wonder if the correct resistor wire is in this package, as the original was red w/a green stripe.

https://www.fullsizebronco.com/threa...-needed.89059/ This guy hada similar situation

This is the wire I need i think, with the brown wire and the plug with 2 wires attached
 
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