Author Topic: Need help identify a plug.  (Read 1450 times)

Offline Danevineyard

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Need help identify a plug.
« on: January 15, 2021, 06:49:05 PM »
So I am going through and redoing some of the electrical on my 1973 Chevy G20 van and I found this plug melted to the side of my engine block. Can anyone help me identify it when I found it the plug that was in it had four wires coming out the end there seemed to all be wired together but then I took it out and subsequently lost the piece with the wires that were together. So I need help identifying what plug this is so that perhaps I can replace it and maybe restore it so it's not rigged all funny

Offline Spool

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Re: Need help identify a plug.
« Reply #1 on: January 18, 2021, 08:43:38 PM »
I don't have the answer, but I came across the very same question today on my 73 c20.
And I'd like to share my photo with the same interest.

I have 3 of these connections:
-The one in question is disconnected: What is its function?
-A second connected right into the firewall beside the bulkhead: What is its function?
-A third between the first two: What is its function?

Offline DanMcG

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Re: Need help identify a plug.
« Reply #2 on: January 19, 2021, 05:12:33 AM »
rear lighting harness? do your lights work?

Offline Danevineyard

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Re: Need help identify a plug.
« Reply #3 on: January 19, 2021, 05:48:41 PM »
Yes my lights work but when I lost the plug my engine won't even turn over anymore. Whereas before it would turn over but not start

Offline Danevineyard

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Re: Need help identify a plug.
« Reply #4 on: January 19, 2021, 05:51:18 PM »
The wires coming out of it are green, light green, and two brown wires.

Offline 75gmck25

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  • 1975 GMC K25 Camper Special, 350/TH350/NP203
Re: Need help identify a plug.
« Reply #5 on: March 05, 2021, 10:29:39 AM »
Some of the colors you have are standard for the lighting circuit. Take a look at this link.  http://www.chuckschevytruckpages.com/80hlightschematic.html

Bruce
« Last Edit: March 05, 2021, 10:33:40 AM by 75gmck25 »

Offline JohnnyPopper

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Re: Need help identify a plug.
« Reply #6 on: March 05, 2021, 01:28:39 PM »
It doesn't look like it's burned beyond use.

Take a razor knife and clean up the burned areas, use some brake cleaner to clean out the gunk.

Then plug it in and get on with life  ;)
1957 Apache 3100 235 Inline 6, 3 on the tree
1973 C-20, 3+3 454 4BBL TH400  Water Injection
1978 K-10, 350 4BBL TH350 NP203 M.M. Part time Kit/Hubs
1980 C-10 under construction