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Old 11-28-2014, 09:48 PM   #1
barmanvarn
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Can you identify this wire?

Working on my dads '69 GMC. Sometimes it's hard to tell what is stock and what is some kluge he did at some point in the past.

Found this "hub" in the passenger side right next to the battery tray.

Edit: no idea why the pic is upside down. Am posting from my mothers ipad so am limited in what I can do. Sorry

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The hub has 3 wires coming out of it. One goes down to the passenger headlights ( I think), 1 runs across the grill and looks like it runs through the firewall. The remaining wire is loose and dad says he thinks it goes to the battery positive.

Any ideas?

Thanks.
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Old 11-28-2014, 10:05 PM   #2
1972BlueC20
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Re: Can you identify this wire?

That "hub" is the battery junction block. As for the wire, I'm not sure. I'm sure someone will chime in with the answer shortly. Maybe try searching junction block and there may be a wiring diagram.
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Old 11-28-2014, 10:16 PM   #3
barmanvarn
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Re: Can you identify this wire?

Quote:
Originally Posted by 1972BlueC20 View Post
That "hub" is the battery junction block. As for the wire, I'm not sure. I'm sure someone will chime in with the answer shortly. Maybe try searching junction block and there may be a wiring diagram.
Thanks. Not used to older vehicles so just seems so odd to me. Not used to seeing extra wires coming off the battery.
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Old 11-28-2014, 10:40 PM   #4
FirstOwner69
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Re: Can you identify this wire?

Your dad is right... dads always are!

There should be a wire that goes from the positive cable to the junction block. It's actually a fusible link. Here's a picture of the battery end of the original positive cable from my 69 that shows the fusible link.
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Old 11-28-2014, 10:46 PM   #5
1972BlueC20
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Re: Can you identify this wire?

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Originally Posted by FirstOwner69 View Post
Your dad is right... dads always are!

There should be a wire that goes from the positive cable to the junction block. It's actually a fusible link. Here's a picture of the battery end of the original positive cable from my 69 that shows the fusible link.

FirstOwner69 to the rescue once again!!

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Old 11-28-2014, 11:17 PM   #6
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Re: Can you identify this wire?

Yup. He's right. That's the link to the whole trucks electrical system.
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Old 11-29-2014, 11:41 AM   #7
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Re: Can you identify this wire?

Thanks for the info folks. Much appreciated.

Am hoping today I can attempt to start the engine up.
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Old 11-29-2014, 01:03 PM   #8
GuyO
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Re: Can you identify this wire?

Also, make sure it is actually "fusible link' wire and not just "wire". Fusible Link is the protection from fire due to electrical short. You can buy Fusible Link wire at the auto parts store.
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Old 11-29-2014, 02:54 PM   #9
magwakeenercew2jh
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Re: Can you identify this wire?

Quote:
Originally Posted by barmanvarn View Post
Edit: no idea why the pic is upside down. Am posting from my mothers ipad so am limited in what I can do. Sorry
You've already been well advised.

But, here's the "fixed" pic.
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Old 11-29-2014, 09:16 PM   #10
barmanvarn
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Re: Can you identify this wire?

Quote:
Originally Posted by magwakeenercew2jh View Post
You've already been well advised.

But, here's the "fixed" pic.
Ha! Thanks!

Had to take a pic of my iphone from my mother's iPad in order to post that.
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