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73-87 Chevy _ GMC Trucks => Electrical => Topic started by: Danevineyard on January 15, 2021, 06:49:05 pm

Title: Need help identify a plug.
Post by: Danevineyard 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
Title: Re: Need help identify a plug.
Post by: Spool 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?
Title: Re: Need help identify a plug.
Post by: DanMcG on January 19, 2021, 05:12:33 am
rear lighting harness? do your lights work?
Title: Re: Need help identify a plug.
Post by: Danevineyard 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
Title: Re: Need help identify a plug.
Post by: Danevineyard on January 19, 2021, 05:51:18 pm
The wires coming out of it are green, light green, and two brown wires.
Title: Re: Need help identify a plug.
Post by: 75gmck25 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
Title: Re: Need help identify a plug.
Post by: JohnnyPopper 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  ;)