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  #46  
Old 07-20-2012, 11:55 AM
Old Coyote Old Coyote is offline
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Makes sense -- it is connected to an auxillary batt on the schematic. And again, I agree with you on where to start on those wires with the fuse links. My guess it that this is a basic continuity problem.
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  #47  
Old 07-22-2012, 06:10 PM
sjbrink sjbrink is offline
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Quote:
Originally Posted by Rossta86 View Post
Alright, we will focus on your +12V supply to the cab.

Do you have the ability to take a picture of your starter solenoid?

Provide me with that picture and we will get started on tracing where the interruption is.
Found the usb cord for my camera. Here's a few pictures of the starter solenoid. Also, any idea where the ground strap is located? Thanks.

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  #48  
Old 07-22-2012, 06:14 PM
sjbrink sjbrink is offline
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Quote:
Originally Posted by Rossta86 View Post
From your post i believe you replaced the fusible link for your charging circuit (e.g fusilbe link going to your alternator).
Yes, I replaced the fusible link for my charging circuit(the fusible link going to my alternator).
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  #49  
Old 07-22-2012, 06:28 PM
sjbrink sjbrink is offline
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Quote:
Originally Posted by piratius View Post
Was the fusible link you replaced in the Black/Yellow wire? (That's what the '78 shop manual shows, I don't know the exact colors for all the years, but I think they're fairly consistent).
Thank-you for the help.

The fusible link I replaced was a black wire. The black wire runs off of the rubber tab in the below picture, the black wire has an orange rubber tab on the end of it. The orange rubber tab is on the right side of the picture.

Ford Truck Enthusiasts Forums - View Single Post - No electrical, completely dead, won't start
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  #50  
Old 07-22-2012, 08:24 PM
sjbrink sjbrink is offline
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Quote:
Originally Posted by KenEdwards View Post
If you are not getting 12+ volts on the battery side of the fuse box than try checking the resistance from the battery side of the fuse panel back to the battery. You will have to make some extentions for your probes with some 12 ga wire or larger. If the resistance is high than start tracing wireing back to the battery which I believes goes through the solenoid connections. Can we assume that the truck was originally a single battery system? If not this can add some complexity to the tracing and trouble shooting effort. Hope this helps.
Thank-you for the help.

I don't know if the truck was originally a single battery system, I bought the truck from a previous owner. The truck is currently a single battery system.

I don't know how to trace the resistance from the battery side of the fuse box to the battery.
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  #51  
Old 07-22-2012, 08:33 PM
sjbrink sjbrink is offline
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Quote:
Originally Posted by Old Coyote View Post
I don't know if this will help, but the schematic at this link shows 4 fusible links.
http://www.justanswer.com/uploads/cr...ruckwiring.pdf

Also, what is the history of this problem? You say in your initial post it won't start and seems to have no electrical. Is this a thing that started while you were operating the truck, or was it like this when you got the truck?
Thank-you for the help. Thanks for the link to the schematic.

The history of the problem is that the truck just stopped working after I hadn't driven it for a few weeks. The truck was running fine, everything was working fine. I hadn't driven the truck for a few weeks, and it just went completely dead.
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  #52  
Old 07-22-2012, 11:10 PM
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  #53  
Old 07-23-2012, 09:29 AM
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Hey sj, Reading back over this thread, I'm a little confused by something. You said in one of the earlier posts:
"Removed the fusible link. There is a wire that connects into the voltage regulator that appears to become one with the fusible link(there is a rubber tab that both the voltage regulator wire and the fusible link join into). On the one end of the fusible link after the rubber tab, there is only wire exiting the rubber tab. On the other end of the fusible link before the rubber tab, the fusible link and the wire running to the voltage regulator are separate."fficeffice" />>>
You say the fusible link you removed is on a wire that "connects to the voltage regulator and appears to become one with the fusible link." On the wiring schematic I sent you for the 78, (linked here: http://www.justanswer.com/uploads/crazi429/2006-08 30_221853_78fordtruckwiring.pdf) the wire that runs from the voltage regulator to the starter solenoid is yellow where it connects to the regulator and splits into two black/red wires, one of which goes to the starter solenoid and one to the alternator. The fusible link is on this black/red wire between the solenoid and where it splits.
Later a poster asked: "Was the fusible link you replaced in the Black/Yellow wire?" >>

You replied: "Yes, I replaced the fusible link for my charging circuit (the fusible link going to my alternator)." >>

> >
But, according to my wiring diagram, the fusible link on the circuit going to the alternator (as described by me above) is not Black/Yellow, but Black/Red. >>
> >
> >
Then you say, "the fusible link I replaced was a black wire. The black wire runs off of the rubber tab in the below picture, the black wire has an orange rubber tab on the end of it. The orange rubber tab is on the right side of the picture."

When you say "black wire", do you mean it was all, black with a red stripe (what's called a "tracer"), or with a yellow stripe, or which? I know the wiring diagrams, like the one I sent you, are not always accurate on colours, etc.. but I'm just tryign to make sure we understand the situation and rule out the possibility of simple mis-wiring. What colour or colours is the wire you replaced the fuse link on? Where does it come from and go to?



>>
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  #54  
Old 01-13-2014, 07:09 PM
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Back from the dead. Troubleshooting what sounds like the same problem. Starter solenoid fried today, replaced it and now have no electrical power. Am able to jump the starter motor but have no power to the key, accessories or fuses. Hopefully will find something soon.
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Old 01-13-2014, 07:09 PM
 
 
 
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