1986 GMC Sierra 1500 SWB wiring
 

Hi, am new to the board and would like some help please. I have an 1986 GMC Sierra Classic 1500 short bed with 305 v8. What I am looking for is where some of the wiring goes in the engine bay. The truck I bought had a race motor in it from what I'm told and when they put the 305 back in it, they left ALOT of stuff just hanging or cut. Air conditioning was also removed with all the plumbing too so any help here would be awesome too. I need to put a horn back in it as that is gone along with the wiring. There is a wire hanging from the drivers side headlight (appears to be a spade terminal) that I dont know where it goes. Truck runs good although I see 2 spots on the Edelbrock carb that are capped off and there is a small zip tie on the passenger side of the carb for some reason??? Some stock engine bay shots (especially wiring) would be great!!! Thank you all for your help!

Re: 1986 GMC Sierra 1500 SWB wiring
 

I will untarp it and shoot some engine bay pics when we get a break in the weather. Thanks again all!

Re: 1986 GMC Sierra 1500 SWB wiring
 

I think that spade terminal goes to the brake proportioning valve down there.

Here is a few pics might help I dunno.

Re: 1986 GMC Sierra 1500 SWB wiring
 

Here few more.

Good luck.

I may be able take some specific ones of my truck these are just some pics I had on computer.

Re: 1986 GMC Sierra 1500 SWB wiring
 

Hi guys i'm new here and all though this thread seems a lil dated I was wondering if anyone has pics of connection points for transmission sensors and tie in point to harness? Any help would be greatly appreciated.

Re: 1986 GMC Sierra 1500 SWB wiring
 

More info is needed for you! What truck and year is it?
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Re: 1986 GMC Sierra 1500 SWB wiring
 

Sorry its a 1986 gmc k-1500 sierra 4x4 pick up