Melted black wire headed to fuse box

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samblnc

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Sam
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So, my 73 C10 truck died suddenly on the road last night. No power, lights, nothing. I replaced the alternator since it looked near original, and since we noticed that the negative terminal was pretty damaged and loose. Still no power of any kind.

After about an hour or so of hunting for the issue this morning, we found the main + battery cable runs up to the top of the firewall and splits off: (1) to the left towards this “hub” shown in the photos, and then (2) to the right towards the fuse box.

The problem was a wire leading to the hub that had apparently melted/fused and split in two and apparently just came apart while I was driving. It’s a braided wire that almost looked smooth/solid where it split. Once we closed the circuit back up, all power was back.

Question 1: Is this splicing job acceptable (yellow connector)?

Question 2: Has anyone seen this situation? Note that we recently had vintage air installed on a non-factory AC truck. Also note the comment above regarding damaged alternator.

Any tips appreciated.
 

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Jgonick

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That looks like a fusibe link. The barrel on it. I would check the wire diagram
LINk
You really should replace the fusible link if it is one. You can buy them from auto store or make your own out of fusible wire (special type of wire). The wire diagram will tell you the gage of wire & the gage of the fusible link. (Usually 4 gages smaller)
 
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CalSgt

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That looks like a fusibe link. The barrel on it. I would check the wire diagram
LINK.
You really should replace the fusible link if it is one. You can buy them from auto store ir make your own out of fusible wire (special type of wire). The wire diagram will tell you the gage of wire & the gage of the fusible link. (Usually 4 gages smaller)
Beat me to it by seconds… LOL
 

AuroraGirl

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So, my 73 C10 truck died suddenly on the road last night. No power, lights, nothing. I replaced the alternator since it looked near original, and since we noticed that the negative terminal was pretty damaged and loose. Still no power of any kind.

After about an hour or so of hunting for the issue this morning, we found the main + battery cable runs up to the top of the firewall and splits off: (1) to the left towards this “hub” shown in the photos, and then (2) to the right towards the fuse box.

The problem was a wire leading to the hub that had apparently melted/fused and split in two and apparently just came apart while I was driving. It’s a braided wire that almost looked smooth/solid where it split. Once we closed the circuit back up, all power was back.

Question 1: Is this splicing job acceptable (yellow connector)?

Question 2: Has anyone seen this situation? Note that we recently had vintage air installed on a non-factory AC truck. Also note the comment above regarding damaged alternator.

Any tips appreciated.
if you wanted to special it could be a time to put a MAXIFUSE bar in .. lol.
 

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