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

Wire identification

Thread Tools
 
Search this Thread
 
Old Mar 12, 2007 | 08:26 PM
  #1  
IllRespect's Avatar
IllRespect
Thread Starter
|
Senior User
Joined: Jan 2005
Posts: 221
Likes: 0
From: Poplar Bluff, MO
Wire identification

I just purchased a 77 f250 crew cab with a 400 in it. I started pullin the dash apart in order to swap parts out of my f150 in to it. That is when I found some burnt wires behind the instrument cluster. I have isolated the wires and can't seem to find them on the wiring diagram in the Haynes manual. I have taken some pictures and have posted them in my gallery. There are acutally 3 wires in question. Two of them are black w/ red strip and the other one is black w/ green strip. One of the black/red is coming out of the fuse box as well as the black/green. The one that I am really concern about is the black/red that goes threw the firewall and connects to the square connector. Any help would be greatly appreciated.

Larry
 
Reply
Old Mar 12, 2007 | 08:31 PM
  #2  
Mil1ion's Avatar
Mil1ion
New User
Joined: Jan 2008
Posts: 0
Likes: 24
One of the black/red is coming out of the fuse box as well as the black/green.
do you mean out the back of the fuse box or out the front because it was attached to a fuse lug ?

That connector looks like is for the cruise control.

Does this truck have speed/cruise control ?

The reason I ask is because all those color wires match cruise control wiring.
black with red or red/black is for stop light switch & cruise shutdown switch.


 

Last edited by Mil1ion; Mar 12, 2007 at 08:36 PM.
Reply
Old Mar 12, 2007 | 08:36 PM
  #3  
IllRespect's Avatar
IllRespect
Thread Starter
|
Senior User
Joined: Jan 2005
Posts: 221
Likes: 0
From: Poplar Bluff, MO
coming out of the back of the fuse box. It doesn't have cruise control.



So what does the wire that goes through the firewall connect to.
 

Last edited by IllRespect; Mar 12, 2007 at 09:07 PM.
Reply
Old Mar 12, 2007 | 09:59 PM
  #4  
plowpusher's Avatar
plowpusher
Posting Guru
Joined: Sep 2003
Posts: 1,192
Likes: 1
From: lino lakes, mn
I would venture to guess this truck has a manual transmission the flat plug is a jumper that goes where the neutral saftey switch/backup light wiring off the steering column the black and red would go to the top of the tranny where the backup light switch is on a 4 spd
 
Reply
Old Mar 13, 2007 | 12:56 AM
  #5  
Mil1ion's Avatar
Mil1ion
New User
Joined: Jan 2008
Posts: 0
Likes: 24
Well I know there is also a Black/green stripe wrire that runs to the alternator light.

so do you have warning lights or gauges ?

also.,.how many and what colour wires go into that plug that you have marked?
 

Last edited by Mil1ion; Mar 13, 2007 at 01:03 AM.
Reply
Old Mar 13, 2007 | 05:06 PM
  #6  
IllRespect's Avatar
IllRespect
Thread Starter
|
Senior User
Joined: Jan 2005
Posts: 221
Likes: 0
From: Poplar Bluff, MO
I have gauges. In that plug there are

1- yellow/black
1- yellow
1- black/red (wire in question)
2- brown
 
Reply
Old Mar 13, 2007 | 06:40 PM
  #7  
Mil1ion's Avatar
Mil1ion
New User
Joined: Jan 2008
Posts: 0
Likes: 24
Then that is for Camper or Trailer wiring

see the wiring diagram 10.67 on page 230.
 
Reply




All times are GMT -5. The time now is 07:44 AM.

story-0
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-1
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-2
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-3
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-4
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-5
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-6
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-7
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-8
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
story-9
Top 10 Ford Truck Tragedies

Slideshow: Top 10 Ford truck tragedies.

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


VIEW MORE