Notices
1973 - 1979 F-100 & Larger F-Series Trucks Discuss the Dentsides Ford Truck
Sponsored by:
Sponsored by: Moser

Wiring Help

Thread Tools
 
Search this Thread
 
Old Oct 13, 2025 | 05:23 PM
  #1  
Voh's Avatar
Voh
Thread Starter
|
Mountain Pass
15 Year Member
Shutterbug
Joined: Nov 2006
Posts: 224
Likes: 55
Wiring Help

I have the master wiring diagrams, but I found a dead-end. The highlighted area is a red-green wire, red white wire and white-red to connection C-220. the red-green continues on to the coil. What are the other two wires for? how do i fin them on schematic?

VOH



 
Reply
Old Oct 13, 2025 | 07:46 PM
  #2  
JimsRebel's Avatar
JimsRebel
Cargo Master
15 Year Member
Photogenic
Photoriffic
Community Builder
Joined: Mar 2008
Posts: 2,561
Likes: 206
From: Washington
The coil power source, C-220, is fed from 2 different places.

1) the resistor wire, which starts near the ingition switch mounted on the column.
So look on the diagram for a RUN output that ends up at C-220

2) the coil gets full voltage, Bypassing the resistor wire, to give a start assist while crank the engine. This comes from the "I" output stud on the starter solenoid. This should end up at C-220.

This is just general info, but it might help you find what you are looking for.
Jim
 
Reply
Old Oct 14, 2025 | 08:42 AM
  #3  
Voh's Avatar
Voh
Thread Starter
|
Mountain Pass
15 Year Member
Shutterbug
Joined: Nov 2006
Posts: 224
Likes: 55
Originally Posted by JimsRebel
The coil power source, C-220, is fed from 2 different places.

1) the resistor wire, which starts near the ignition switch mounted on the column.
So look on the diagram for a RUN output that ends up at C-220

2) the coil gets full voltage, Bypassing the resistor wire, to give a start assist while crank the engine. This comes from the "I" output stud on the starter solenoid. This should end up at C-220.

This is just general info, but it might help you find what you are looking for.
Jim
Thank you Jim. I was thinking that was what the (2) different red wires were. What about the white wire off that same plug?
 
Reply
Old Oct 14, 2025 | 08:57 AM
  #4  
Voh's Avatar
Voh
Thread Starter
|
Mountain Pass
15 Year Member
Shutterbug
Joined: Nov 2006
Posts: 224
Likes: 55
Is the voltage to the coil though the resistor obviously lower than 12 volts? Like single digit vs high 11 volts? I need the 12 volts to the coil the whole time, not a reduced voltage.
 
Reply
Old Oct 14, 2025 | 09:28 PM
  #5  
JimsRebel's Avatar
JimsRebel
Cargo Master
15 Year Member
Photogenic
Photoriffic
Community Builder
Joined: Mar 2008
Posts: 2,561
Likes: 206
From: Washington
Originally Posted by Voh
Is the voltage to the coil though the resistor obviously lower than 12 volts? Like single digit vs high 11 volts? I need the 12 volts to the coil the whole time, not a reduced voltage.
Not sure about the white wire.
Why do you need 12 in RUN?
Is this a DS2 system?
Jim
 
Reply
Old Oct 15, 2025 | 07:59 AM
  #6  
Voh's Avatar
Voh
Thread Starter
|
Mountain Pass
15 Year Member
Shutterbug
Joined: Nov 2006
Posts: 224
Likes: 55
It is not a DS2 system. its a small cap pointless replacement distributor.
 
Reply
Old Oct 15, 2025 | 10:17 AM
  #7  
JimsRebel's Avatar
JimsRebel
Cargo Master
15 Year Member
Photogenic
Photoriffic
Community Builder
Joined: Mar 2008
Posts: 2,561
Likes: 206
From: Washington
Originally Posted by Voh
It is not a DS2 system. its a small cap pointless replacement distributor.
You will have to bypass the original resistor wire or use a relay to get full voltage. The instructions that came with your replacement dist. should have more details.
Jim
 
Reply
Old Oct 15, 2025 | 10:19 AM
  #8  
Voh's Avatar
Voh
Thread Starter
|
Mountain Pass
15 Year Member
Shutterbug
Joined: Nov 2006
Posts: 224
Likes: 55
Thank you Jim.
 
Reply
FTE Stories

Ford Trucks for Ford Truck Enthusiasts

story-0

Top 10 Ford Truck Tragedies

 Joe Kucinski
story-1

AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make

 Brett Foote
story-2

Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!

 Michael S. Palmer
story-3

Ford's 2001 Explorer Sportsman Concept Looks For a New Home

 Verdad Gallardo
story-4

10 Best Ford Truck Engines We Miss the Most!

 Joe Kucinski
story-5

2026 Shelby F-150 Off-Road: Better Than a Raptor R?

 Brett Foote
story-6

2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!

 Michael S. Palmer
story-7

10 Most Surprising 2026 Ford Truck Features!

 Joe Kucinski
story-8

Top 10 Ford Trucks Coming to Mecum Indy 2026

 Brett Foote
story-9

5 Best / 5 Worst Ford Truck Wheels of All Time

 Joe Kucinski
Old Oct 15, 2025 | 10:19 AM
  #9  
JimsRebel's Avatar
JimsRebel
Cargo Master
15 Year Member
Photogenic
Photoriffic
Community Builder
Joined: Mar 2008
Posts: 2,561
Likes: 206
From: Washington
Also, as it's a small diameter cap, keep the spark plugs gapped the same as points. Or about.033 or so.
Jim
 

Last edited by JimsRebel; Oct 15, 2025 at 05:30 PM.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
vanspeed
1961 - 1966 F-100 & Larger F-Series Trucks
3
Jun 14, 2025 04:12 PM
moto_hero
1967 - 1972 F-100 & Larger F-Series Trucks
4
Jun 2, 2025 08:11 AM
rupp.jess
1967 - 1972 F-100 & Larger F-Series Trucks
9
Mar 9, 2025 07:01 PM
tacticalturnip
2017 - 2022 Super Duty
4
Feb 12, 2023 09:09 PM
N8RdaGR8R
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks
1
Apr 6, 2019 01:52 PM




All times are GMT -5. The time now is 10:48 AM.

story-0
Top 10 Ford Truck Tragedies

Slideshow: Top 10 Ford truck tragedies.

By Joe Kucinski | 2026-05-18 19:34:33


VIEW MORE
story-1
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make

And it might be even better than that.

By Brett Foote | 2026-05-18 19:26:42


VIEW MORE
story-2
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!

Slideshow: Does lowering an F-150 Lobo RUIN the ride quality?

By Michael S. Palmer | 2026-05-18 19:20:37


VIEW MORE
story-3
Ford's 2001 Explorer Sportsman Concept Looks For a New Home

Slideshow: Ford's bizarre fishing-themed Explorer concept has resurfaced after spending decades largely forgotten.

By Verdad Gallardo | 2026-05-12 18:07:46


VIEW MORE
story-4
10 Best Ford Truck Engines We Miss the Most!

Slideshow: The 10 best Ford truck engines we miss the most.

By Joe Kucinski | 2026-05-12 13:09:47


VIEW MORE
story-5
2026 Shelby F-150 Off-Road: Better Than a Raptor R?

Slideshow: first look at the 810 hp 2026 Shelby F-150 Off-Road!

By Brett Foote | 2026-05-12 12:50:07


VIEW MORE
story-6
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!

Slideshow: Everything You Need to Know about the 2027 Super Duty Carhartt Package!

By Michael S. Palmer | 2026-05-07 17:51:06


VIEW MORE
story-7
10 Most Surprising 2026 Ford Truck Features!

Slideshow: 10 most surprising Ford truck options/features in 2026.

By Joe Kucinski | 2026-05-05 11:17:22


VIEW MORE
story-8
Top 10 Ford Trucks Coming to Mecum Indy 2026

Slideshow: Here are the top 10 Fords coming to Mecum Indy 2026.

By Brett Foote | 2026-05-04 13:49:49


VIEW MORE
story-9
5 Best / 5 Worst Ford Truck Wheels of All Time

Slideshow: The 5 best and 5 worst Ford truck wheels of all time

By Joe Kucinski | 2026-04-29 16:49:01


VIEW MORE