Wiring diagrams -- where did they go?!? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

kipps · 12-29-2018, 10:07 PM

Somewhere on here, I ran across a bunch of very nice squarebody diagrams. I don't remember if they were in a post or in someone's signature. Either way, I can't find them.

Can anyone help me out here?

**hatzie** · 12-29-2018, 10:37 PM

How bouts my signature

kipps · 12-30-2018, 09:59 AM

It wasn't the one I was thinking of. The format of those factory manuals is not as handy as I would like. Somewhere on here, I was seeing some very nice clear diagrams.

geezer#99 · 12-30-2018, 10:17 AM

How many do you want?
Search with ‘google images’ to find anything you want.

https://www.google.com/search?q=1984...w=1366&bih=922

**hatzie** · 12-30-2018, 10:46 AM

None of the aftermarket diagrams are complete for each year and there are errors that are not present in the GM manuals.

Sabaka454 · 12-30-2018, 08:20 PM

What diagrams are you looking for?

kipps · 12-30-2018, 08:36 PM

Quote:

Originally Posted by Sabaka454

What diagrams are you looking for?

Specifically, I'm looking for complete pinouts for all the stock '87 dash controls. I'll be moving all the dash connectors over to my own new harness.

I'm using Hatzie's wiring manual, which is a better scan job than AllDataDiy had of the same diagrams. It's still not as clear as a diagram I saw on here just a week ago, but can't find.

kipps · 12-30-2018, 08:54 PM

Found it. It was on the wrong forum. These appear to be aftermarket diagrams, but different and better than the Haynes manual that I have. They're also clearer than the factory diagrams, and laid out in a little more typical format. I'll keep an eye out for errors.

http://forum.73-87chevytrucks.com/sm...?topic=11766.0

Sabaka454 · 12-31-2018, 10:05 AM

the pinouts are here http://forum.73-87chevytrucks.com/sm...?topic=31456.0

**hatzie** · 12-31-2018, 11:21 AM

Quote:

Originally Posted by kipps

Found it. It was on the wrong forum. These appear to be aftermarket diagrams, but different and better than the Haynes manual that I have. They're also clearer than the factory diagrams, and laid out in a little more typical format. I'll keep an eye out for errors.

http://forum.73-87chevytrucks.com/sm...?topic=11766.0

Those are chopped up sections of page 1 of an 81-83 or so wiring manual. In 84 GM started adding some embyonic ECM control to things and it got progressively more complex each year.

You should've mentioned you were working on a 1987. Those 1987 GM wiring diagrams are a bear to wade through.

Download the 1988 & 1989 RV series diagrams. You can follow those and they'll be closer to your 87 than the scans you linked to on Chris's board.

Chris Lucas has a lot of good electrical and other tech info on his board written and organized by Rich "bd", VileZamboni, IrishAlley, and several others.

12-29-2018, 10:07 PM	#1
kipps Registered User Join Date: Jul 2014 Location: North-central Virginia Posts: 1,104	Wiring diagrams -- where did they go?!? Somewhere on here, I ran across a bunch of very nice squarebody diagrams. I don't remember if they were in a post or in someone's signature. Either way, I can't find them. Can anyone help me out here?

12-29-2018, 10:37 PM	#2
hatzie Moderator Join Date: Oct 2008 Location: Wentworth, NH Posts: 4,977	Re: Wiring diagrams -- where did they go?!? How bouts my signature __________________ 1959 M35A2 LDT465-1D SOLD 1967 Dodge W200 B383, NP420/NP201 SOLD 1969 Dodge Polara 500 B383, A833 SOLD 1972 Ford F250 FE390, NP435/NP205 SOLD 1976 Chevy K20, 6.5L, NV4500/NP208 SOLD 1986 M1008 CUCV SOLD 2000 GMC C2500, TD6.5L, NV4500 2005 Chevy Silverado LS 2500HD 6.0L 4L80E/NP263 2009 Impala SS LS4 V8 RTFM... GM Parts Books, GM Schematics, GM service manuals, and GM training materials... 1973-1991 GM Light Truck Service, Unit/Overhaul, Wiring Manuals, Parts Books and Some 1968-1999 GM Service Training textbooks in PDF 1988-1998 GMT400 CK service manual project 1988-1993 GMT400 CK parts books. 1967-1972 GM Light, Medium, & Heavy Truck Service Manuals in PDF Please include at least the year and model in your threads. It'll be easier to answer your questions. And please let us know if and how your repairs were successful.

12-30-2018, 09:59 AM	#3
kipps Registered User Join Date: Jul 2014 Location: North-central Virginia Posts: 1,104	Re: Wiring diagrams -- where did they go?!? It wasn't the one I was thinking of. The format of those factory manuals is not as handy as I would like. Somewhere on here, I was seeing some very nice clear diagrams.

12-30-2018, 10:17 AM	#4
geezer#99 Registered User Join Date: Aug 2009 Location: Bowser Posts: 13,736	Re: Wiring diagrams -- where did they go?!? How many do you want? Search with ‘google images’ to find anything you want. https://www.google.com/search?q=1984...w=1366&bih=922

12-30-2018, 10:46 AM	#5
hatzie Moderator Join Date: Oct 2008 Location: Wentworth, NH Posts: 4,977	Re: Wiring diagrams -- where did they go?!? None of the aftermarket diagrams are complete for each year and there are errors that are not present in the GM manuals. __________________ 1959 M35A2 LDT465-1D SOLD 1967 Dodge W200 B383, NP420/NP201 SOLD 1969 Dodge Polara 500 B383, A833 SOLD 1972 Ford F250 FE390, NP435/NP205 SOLD 1976 Chevy K20, 6.5L, NV4500/NP208 SOLD 1986 M1008 CUCV SOLD 2000 GMC C2500, TD6.5L, NV4500 2005 Chevy Silverado LS 2500HD 6.0L 4L80E/NP263 2009 Impala SS LS4 V8 RTFM... GM Parts Books, GM Schematics, GM service manuals, and GM training materials... 1973-1991 GM Light Truck Service, Unit/Overhaul, Wiring Manuals, Parts Books and Some 1968-1999 GM Service Training textbooks in PDF 1988-1998 GMT400 CK service manual project 1988-1993 GMT400 CK parts books. 1967-1972 GM Light, Medium, & Heavy Truck Service Manuals in PDF Please include at least the year and model in your threads. It'll be easier to answer your questions. And please let us know if and how your repairs were successful.

12-30-2018, 08:20 PM	#6
Sabaka454 Registered User Join Date: Jul 2005 Location: CT Posts: 278	Re: Wiring diagrams -- where did they go?!? What diagrams are you looking for?

12-30-2018, 08:54 PM	#8
kipps Registered User Join Date: Jul 2014 Location: North-central Virginia Posts: 1,104	Re: Wiring diagrams -- where did they go?!? Found it. It was on the wrong forum. These appear to be aftermarket diagrams, but different and better than the Haynes manual that I have. They're also clearer than the factory diagrams, and laid out in a little more typical format. I'll keep an eye out for errors. http://forum.73-87chevytrucks.com/sm...?topic=11766.0

12-31-2018, 10:05 AM	#9
Sabaka454 Registered User Join Date: Jul 2005 Location: CT Posts: 278	Re: Wiring diagrams -- where did they go?!? the pinouts are here http://forum.73-87chevytrucks.com/sm...?topic=31456.0



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