Ford Truck Enthusiasts Forums

Notices
1967 - 1972 F-100 & Larger F-Series Trucks Discuss the Bumpsides Ford Truck

Charging system harness

Thread Tools
 
Search this Thread
 
Old Aug 20, 2018 | 06:56 AM
Share
  #1  
Ghill70's Avatar
Ghill70
Thread Starter
|
Freshman User
Joined: Aug 2018
Posts: 37
Likes: 1
From: Williamsport, Pa
Charging system harness
Hi. I just picked up a 1970 F100 with a 302. Gauges, not idiot lights. It is not giving a charge. The alternator tested as working correctly, but it really looks as though there are wires cut off or missing from the alternator to voltage regulator harness, so I believe that's where the problem is. I am having trouble finding a new harness. I read somewhere that the 1970 mustang uses the same harness. Could someone please tell me if that is correct?
 
Reply
0
Old Aug 20, 2018 | 07:45 AM
Share
  #2  
mrpotatohead's Avatar
mrpotatohead
Posting Guru
Joined: Apr 2006
Posts: 1,477
Likes: 7
From: NAMPA, ID.
I have a good used one from a 71 f-100 for sale.
 
Reply
0
Old Aug 20, 2018 | 10:27 AM
Share
  #3  
Thipdar's Avatar
Thipdar
Laughing Gas
Joined: Mar 2010
Posts: 1,028
Likes: 5
From: San Francisco East Bay
Originally Posted by Ghill70
Hi. I just picked up a 1970 F100 with a 302. Gauges, not idiot lights...
With the 1970/gauges combination, you'll want to use the F350 diagram for troubleshooting your alternator wiring.
The F100-250 diagram only shows wiring for the idiot lights.
There are differences at the Voltage Regulator, Alternator and Instrument Cluster.
 
Reply
0
Old Aug 20, 2018 | 12:45 PM
Share
  #4  
Ghill70's Avatar
Ghill70
Thread Starter
|
Freshman User
Joined: Aug 2018
Posts: 37
Likes: 1
From: Williamsport, Pa
Originally Posted by mrpotatohead
I have a good used one from a 71 f-100 for sale.
Ok. How much do you want for the harness, and how do we arrange payment and shipping?
 
Reply
0
Old Aug 20, 2018 | 12:46 PM
Share
  #5  
Ghill70's Avatar
Ghill70
Thread Starter
|
Freshman User
Joined: Aug 2018
Posts: 37
Likes: 1
From: Williamsport, Pa
Originally Posted by Thipdar
With the 1970/gauges combination, you'll want to use the F350 diagram for troubleshooting your alternator wiring.
The F100-250 diagram only shows wiring for the idiot lights.
There are differences at the Voltage Regulator, Alternator and Instrument Cluster.
Thank you!
 
Reply
0
Old Aug 20, 2018 | 01:32 PM
Share
  #6  
Ghill70's Avatar
Ghill70
Thread Starter
|
Freshman User
Joined: Aug 2018
Posts: 37
Likes: 1
From: Williamsport, Pa
Originally Posted by Ghill70
Ok. How much do you want for the harness, and how do we arrange payment and shipping?
I guess the better question would be is it listed here in the marketplace?
 
Reply
0
Old Aug 20, 2018 | 02:29 PM
Share
  #7  
mrpotatohead's Avatar
mrpotatohead
Posting Guru
Joined: Apr 2006
Posts: 1,477
Likes: 7
From: NAMPA, ID.
I'd take 50.00 for it plus the shipping charges. I will post a picture of it if you are interested in it. Just let me know.
Thanks.
 
Reply
0

Trending Topics

Old Aug 20, 2018 | 03:48 PM
Share
  #8  
Ghill70's Avatar
Ghill70
Thread Starter
|
Freshman User
Joined: Aug 2018
Posts: 37
Likes: 1
From: Williamsport, Pa
Originally Posted by mrpotatohead
I'd take 50.00 for it plus the shipping charges. I will post a picture of it if you are interested in it. Just let me know.
Thanks.
Please post the picture.
 
Reply
0
FTE Stories

Ford Trucks for Ford Truck Enthusiasts

story-0

This Hennessey Takes the Expedition Tremor's Off-Roading Capability to the Next Level

 Verdad Gallardo
story-1

Top 10 Fords at 2026 Carlisle Ford Nationals

 Joe Kucinski
story-2

3 Best / 3 Worst Parts of Modern Ford Ownership

 Brett Foote
story-3

10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches

 Pouria Savadkouei
story-4

Every 2026 Ford Engine Explained

 Brett Foote
story-5

10 Ugly Ford Trucks That We Still Kinda Love

 Joe Kucinski
story-6

10 Things Every Truck Owner NEEDS (2026 Edition)

 Michael S. Palmer
story-7

Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath

 Verdad Gallardo
story-8

Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer

 Joe Kucinski
story-9

2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)

 Brett Foote
Old Aug 20, 2018 | 08:36 PM
Share
  #9  
mrpotatohead's Avatar
mrpotatohead
Posting Guru
Joined: Apr 2006
Posts: 1,477
Likes: 7
From: NAMPA, ID.








It's in absolutely perfect condition. 50.00 plus shipping, I do paypal. I can get more if anyone else is interested. Thanks.
 
Reply
0
Old Aug 20, 2018 | 09:04 PM
Share
  #10  
Ghill70's Avatar
Ghill70
Thread Starter
|
Freshman User
Joined: Aug 2018
Posts: 37
Likes: 1
From: Williamsport, Pa
I'll take it. How do we do this? Do you have a website or online store?
 
Reply
0
Old Aug 20, 2018 | 09:28 PM
Share
  #11  
mrpotatohead's Avatar
mrpotatohead
Posting Guru
Joined: Apr 2006
Posts: 1,477
Likes: 7
From: NAMPA, ID.
I see you don't have the messaging feature activated. Can I send you an e-mail?
 
Reply
0
Old Aug 20, 2018 | 09:33 PM
Share
  #12  
Ghill70's Avatar
Ghill70
Thread Starter
|
Freshman User
Joined: Aug 2018
Posts: 37
Likes: 1
From: Williamsport, Pa
Originally Posted by mrpotatohead
I see you don't have the messaging feature activated. Can I send you an e-mail?
**********
 
Reply
0
Old Aug 20, 2018 | 09:34 PM
Share
  #13  
mrpotatohead's Avatar
mrpotatohead
Posting Guru
Joined: Apr 2006
Posts: 1,477
Likes: 7
From: NAMPA, ID.
E-mail sent.
 
Reply
0
Old Aug 20, 2018 | 09:47 PM
Share
  #14  
Ghill70's Avatar
Ghill70
Thread Starter
|
Freshman User
Joined: Aug 2018
Posts: 37
Likes: 1
From: Williamsport, Pa
Originally Posted by Ghill70
************@yahoo.com
Originally Posted by mrpotatohead
E-mail sent.
not seeing anything yet.
 
Reply
0
Old Aug 25, 2018 | 01:27 AM
Share
  #15  
Ghill70's Avatar
Ghill70
Thread Starter
|
Freshman User
Joined: Aug 2018
Posts: 37
Likes: 1
From: Williamsport, Pa
Originally Posted by Thipdar
With the 1970/gauges combination, you'll want to use the F350 diagram for troubleshooting your alternator wiring.
The F100-250 diagram only shows wiring for the idiot lights.
There are differences at the Voltage Regulator, Alternator and Instrument Cluster.
I got the charging system going again, big thanks to mrpotatohead. Would the f350 diagram apply to turn signals and running lights as well, or would the f100 diagram correctly cover it?
 
Reply
0



Advanced Search
Reply Closed Thread Share
Forum Jump

All times are GMT -5. The time now is 08:15 PM.

story-0
This Hennessey Takes the Expedition Tremor's Off-Roading Capability to the Next Level

Slideshow: The VelociRaptor Expedition gains a lift, upgraded suspension, Brembo brakes, and trail-ready equipment while retaining the stock 440-horsepower EcoBoost V6.

By Verdad Gallardo | 2026-06-12 11:01:55


VIEW MORE
story-1
Top 10 Fords at 2026 Carlisle Ford Nationals

Slideshow: Top 10 Fords at 2026 Ford Nationals

By Joe Kucinski | 2026-06-09 11:10:08


VIEW MORE
story-2
3 Best / 3 Worst Parts of Modern Ford Ownership

Based on years of owning multiple modern Ford products.

By Brett Foote | 2026-06-09 10:53:36


VIEW MORE
story-3
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches

SPONSORED: From muddy boots to rain-soaked cargo, these upgrades address some of the most common frustrations Ford truck owners face every day.

By Pouria Savadkouei | 2026-06-08 18:50:34


VIEW MORE
story-4
Every 2026 Ford Engine Explained

Here's everything you need to know about every Ford engine available for the 2026 model year.

By Brett Foote | 2026-06-05 12:58:01


VIEW MORE
story-5
10 Ugly Ford Trucks That We Still Kinda Love

Slideshow: 10 ugly Ford trucks that we still kinda love.

By Joe Kucinski | 2026-06-03 09:51:16


VIEW MORE
story-6
10 Things Every Truck Owner NEEDS (2026 Edition)

Slideshow: the best gifts for dads & grads

By Michael S. Palmer | 2026-06-03 15:43:58


VIEW MORE
story-7
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath

Slideshow: Called the Fortress, the 850-horsepower pickup combines Raptor underpinnings with military-inspired features, survival equipment, and a starting price of $285,000.

By Verdad Gallardo | 2026-06-03 11:38:36


VIEW MORE
story-8
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer

Slideshow: 10 most expensive Ford trucks ever sold on Bring a Trailer.

By Joe Kucinski | 2026-05-27 16:24:34


VIEW MORE
story-9
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)

Here's everything that has changed for the latest model year.

By Brett Foote | 2026-05-27 16:17:28


VIEW MORE