Please help identify wires
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Junior User
Joined: Mar 2005
Posts: 79
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From: Belleville, MI
Please help identify wires
I'm trying to decipher the wiring harness on my hiboy and would like some help with identifying what a few of these wires are that are coming through the firewall.
The truck is a 1973 F250 4wd, originally with a 360, np435, AC and it does have two factory battery trays. I'm not certain that it has the factory dual battery setup, as someone could have added the second battery tray.
Today, it has a 460 and a standard heater. There are a few wires that are coming through the firewall, and none of them are on my 77-79 F150s so I'm struggling to identify them.
This comes through to the right of the master cylinder, and the lead is 4-5 ft long.
This is how it terminates:
This comes through to the left of the master cylinder and is two wires that have been cut off at some point
This little guy comes through the the immediate left of the master cylinder.
This is the portion of the harness that goes to the solenoid and regulator, but what does this little plug hanging off here go to?
Any help you can offer would be greatly appreciated.
I apologize for these photos, I'm not sure why they appear so large...
The truck is a 1973 F250 4wd, originally with a 360, np435, AC and it does have two factory battery trays. I'm not certain that it has the factory dual battery setup, as someone could have added the second battery tray.
Today, it has a 460 and a standard heater. There are a few wires that are coming through the firewall, and none of them are on my 77-79 F150s so I'm struggling to identify them.
This comes through to the right of the master cylinder, and the lead is 4-5 ft long.
This is how it terminates:
This comes through to the left of the master cylinder and is two wires that have been cut off at some point
This little guy comes through the the immediate left of the master cylinder.
This is the portion of the harness that goes to the solenoid and regulator, but what does this little plug hanging off here go to?
Any help you can offer would be greatly appreciated.
I apologize for these photos, I'm not sure why they appear so large...
Laughing Gas
Joined: Jun 2010
Posts: 1,056
Likes: 10
From: Indiana, PA
Just get a manual and look them up. On my truck there are a lot of unused plugs that are just extra from the factory which would have been hooked up if there was AC and that sorts of stuff. Personally I would just hook up the wires you know, see what does/doesn`t work and trouble shoot from there. Good luck
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