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

Electrical Adventures

Thread Tools
 
Search this Thread
 
Old May 11, 2016 | 07:46 AM
  #1  
Jarrett Campbell's Avatar
Jarrett Campbell
Thread Starter
|
Cargo Master
Joined: Jul 2015
Posts: 3,076
Likes: 21
From: Aransas Pass, Tx
Electrical Adventures

Ok so I decided enough was enough with the truck and that I would finally get around to tracking down my electrical gremlin.

I repaired three completely exposed wires (one was the main power wire off of the generator) and replaced a few butt connectors with solder and heat shrink and one especially frustrating length of wire with three butt connectors holding the thing together

So here are some pictures of loose wires I found while rooting around in there. I know it is dirty, but all the oil is old. I plugged the leaks when I bought it and never got around to cleaning.




Wires everywhere. I need to loom this mess.




First two danglers. They come out of the connector in the next picture.....




Two wires on the right are loose, the one on the left is connected to..... next picture




Right here. Can I cut the other two off? Should I just zip tie them to the fender?




Passenger side firewall, single wire connector comes out of main harness and I can't see anything it should be attached to...




Another look at the single connector.


I will have some other pictures of the other connectors that aren't attached to anything probably tomorrow morning.

Thanks to everyone for the help!!
 
Reply
Old May 11, 2016 | 08:12 AM
  #2  
hickory1991's Avatar
hickory1991
Fleet Mechanic
15 Year Member
Photogenic
Photoriffic
Shutterbug
Joined: Feb 2011
Posts: 1,410
Likes: 42
From: Michigan
Club FTE Silver Member

I think that single connector is for an under hood light.
 
Reply
Old May 12, 2016 | 11:39 AM
  #3  
brianto79's Avatar
brianto79
New User
Joined: Mar 2016
Posts: 4
Likes: 0
X2 on the single connector, don't worry about it. Check all grounds.
 
Reply
Old May 12, 2016 | 01:25 PM
  #4  
Jarrett Campbell's Avatar
Jarrett Campbell
Thread Starter
|
Cargo Master
Joined: Jul 2015
Posts: 3,076
Likes: 21
From: Aransas Pass, Tx
Originally Posted by hickory1991
I think that single connector is for an under hood light.
[QUOTE=X2 on the single connector, don't worry about it. Check all grounds.[/QUOTE]

Thanks guys!

How many grounds are there on this truck? Or better said, how many should there be?

I've been really busy and away from the house the last few days, haven't had a chance to work on anything. I'll hopefully get to it after I get back from Canada next Friday.
 
Reply
Old May 12, 2016 | 02:17 PM
  #5  
4x4slik's Avatar
4x4slik
Elder User
Joined: Jan 2014
Posts: 898
Likes: 3
From: Chillicothe, IA
1973-1979 Ford Truck Wiring Diagrams & Schematics - FORDification.net

link to wiring schematic which I believe has locations of grounds also.
 
Reply
Old May 12, 2016 | 04:24 PM
  #6  
Jarrett Campbell's Avatar
Jarrett Campbell
Thread Starter
|
Cargo Master
Joined: Jul 2015
Posts: 3,076
Likes: 21
From: Aransas Pass, Tx
Originally Posted by 4x4slik
1973-1979 Ford Truck Wiring Diagrams & Schematics - FORDification.net

link to wiring schematic which I believe has locations of grounds also.
That link is solid gold. Thank you!
 
Reply
Old May 12, 2016 | 09:27 PM
  #7  
4x4slik's Avatar
4x4slik
Elder User
Joined: Jan 2014
Posts: 898
Likes: 3
From: Chillicothe, IA
Yeah, I have a few i keep in a special bookmark folder. I just wish I had a giant format printer to print them out so I can read them.
 
Reply
Old May 13, 2016 | 07:58 AM
  #8  
Jarrett Campbell's Avatar
Jarrett Campbell
Thread Starter
|
Cargo Master
Joined: Jul 2015
Posts: 3,076
Likes: 21
From: Aransas Pass, Tx
Originally Posted by 4x4slik
Yeah, I have a few i keep in a special bookmark folder. I just wish I had a giant format printer to print them out so I can read them.
I could plot them at work. We have a 34" printer. Would a 22x34" print be big enough? hahaha

For real, if you want me to I can print it and send it to you! Just PM your address and the diagrams you want and I'll get it in the mail
 
Reply
FTE Stories

Ford Trucks for Ford Truck Enthusiasts

story-0

10 Ugly Ford Trucks That We Still Kinda Love

 Joe Kucinski
story-1

10 Things Every Truck Owner NEEDS (2026 Edition)

 Michael S. Palmer
story-2

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

 Verdad Gallardo
story-3

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

 Joe Kucinski
story-4

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

 Brett Foote
story-5

Top 10 Ford Truck Tragedies

 Joe Kucinski
story-6

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

 Brett Foote
story-7

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

 Michael S. Palmer
story-8

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

 Verdad Gallardo
story-9

10 Best Ford Truck Engines We Miss the Most!

 Joe Kucinski
Old May 13, 2016 | 08:07 AM
  #9  
HIO Silver's Avatar
HIO Silver
Fleet Owner
Joined: Dec 2009
Posts: 20,678
Likes: 82
From: NorCal
Laminated 11x17 sheets are more handy.
 
Reply
Old May 13, 2016 | 08:41 AM
  #10  
mikeo0o0o0's Avatar
mikeo0o0o0
Hotshot
15 Year Member
Liked
Loved
Community Favorite
Joined: Apr 2009
Posts: 14,333
Likes: 247
From: Stanley, VA
Club FTE Gold Member
In the first pictures, that looks like the engine gauge feed harness. One wire should go to the "+" side of the coil. From the pictures I would say that there was an issue with the ignition coil resistor wire sometime in the past and it's been bypassed with the external resistor. The two "danglers" should be for the oil pressure sending unit and the temperature sender.
 
Reply
Old May 13, 2016 | 09:07 AM
  #11  
Jarrett Campbell's Avatar
Jarrett Campbell
Thread Starter
|
Cargo Master
Joined: Jul 2015
Posts: 3,076
Likes: 21
From: Aransas Pass, Tx
Originally Posted by mikeo0o0o0
In the first pictures, that looks like the engine gauge feed harness. One wire should go to the "+" side of the coil. From the pictures I would say that there was an issue with the ignition coil resistor wire sometime in the past and it's been bypassed with the external resistor. The two "danglers" should be for the oil pressure sending unit and the temperature sender.
That would make a lot of sense. There is an aftermarket oil pressure, voltage, and coolant temp gauge in the truck and the stock ones don't work. Thanks Mike!

As far as the ignition coil resistor, is the external one ok or should it have been replaced?
 
Reply
Old May 13, 2016 | 09:56 AM
  #12  
mikeo0o0o0's Avatar
mikeo0o0o0
Hotshot
15 Year Member
Liked
Loved
Community Favorite
Joined: Apr 2009
Posts: 14,333
Likes: 247
From: Stanley, VA
Club FTE Gold Member
Originally Posted by Jarrett Campbell
As far as the ignition coil resistor, is the external one ok or should it have been replaced?
As long as it's working okay, you aren't going for a concourse restoration, or you're not obsessively OCD, you can leave it. Replacing the resistor wire that it bypasses is a real pain. To do it to concourse standards would pretty much mean replacing the underdash wiring harness .
 
Reply
Old May 13, 2016 | 10:05 AM
  #13  
Jarrett Campbell's Avatar
Jarrett Campbell
Thread Starter
|
Cargo Master
Joined: Jul 2015
Posts: 3,076
Likes: 21
From: Aransas Pass, Tx
Originally Posted by mikeo0o0o0
As long as it's working okay, you aren't going for a concourse restoration, or you're not obsessively OCD, you can leave it. Replacing the resistor wire that it bypasses is a real pain. To do it to concourse standards would pretty much mean replacing the underdash wiring harness .
I think it is going to be left the way it is.
 
Reply
Old May 13, 2016 | 10:21 AM
  #14  
mikeo0o0o0's Avatar
mikeo0o0o0
Hotshot
15 Year Member
Liked
Loved
Community Favorite
Joined: Apr 2009
Posts: 14,333
Likes: 247
From: Stanley, VA
Club FTE Gold Member
Originally Posted by mikeo0o0o0
obsessively OCD
I re-read my answer, I think that's a pretty redundant statement .
 
Reply
Old May 13, 2016 | 10:22 AM
  #15  
Jarrett Campbell's Avatar
Jarrett Campbell
Thread Starter
|
Cargo Master
Joined: Jul 2015
Posts: 3,076
Likes: 21
From: Aransas Pass, Tx
Originally Posted by mikeo0o0o0
I re-read my answer, I think that's a pretty redundant statement .
My dad always says he is CDO.


That's OCD in alphabetical order, and I think he's right.
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Wes444
1999 - 2003 7.3L Power Stroke Diesel
3
Oct 3, 2017 06:36 AM
Tugly
1999 - 2003 7.3L Power Stroke Diesel
13
May 2, 2017 11:48 AM
drizzie27
1967 - 1972 F-100 & Larger F-Series Trucks
6
Mar 28, 2012 06:08 PM
Fishin76
Pre-Power Stroke Diesel (7.3L IDI & 6.9L)
12
Oct 21, 2009 09:54 PM
black58
1948 - 1956 F1, F100 & Larger F-Series Trucks
15
Apr 5, 2009 08:31 PM




All times are GMT -5. The time now is 12:18 PM.

story-0
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-1
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-2
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-3
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-4
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-5
Top 10 Ford Truck Tragedies

Slideshow: Top 10 Ford truck tragedies.

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


VIEW MORE
story-6
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-7
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-8
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-9
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