yes i have read the stickys and also have used the search as well. I am still confused.
I cut the wires going to the controller thinking there would be 3 wires there(thought i read that). I have 5 wires total going to the controller.

Black which was apart from the rest is a ground.
Purple(never hot and didnt show to be connected to gp #1 like i thought i read----maybe bad fuseable link???..i believe i read theres one in there someplace...not sure why)
Red and a red/white(hot with key on)
Orange(never hot)

On the glow plug relay i have a purple snap on.A black snap on. Main pos. and the secondary positive is what i assume is the glow plug wire but there is also two large orange wires as well that goes into a factory(looks it anyway) plug in.-------------in the various pics i have seen i have not seen or heard about these two wires being there.

im about to go and gut the wiring cover i believe. I know i can make a glow plug switch work but i would like to understand it better and know what those other wires are for and what i need to do with them.

 

Would help having abit of info on your rig. Assuming you have an 83-86 truck, witch has the older system.


You'll just need a momentary push button, run a wire to the GP solenoid purple wire terminal, make sure to remove the purple wire from solenoid so the truck can’t control them, and then find a ignition on hot wire in the cab, connect that to the one side of the momentary switch and the wire you ran to the purple wire terminal, to the other side, bam, done.





You don't need to cut or do anything to the actual controller, as just unplugging the purple wire terminal, will disable the controller anyways.

 

just unplugging it is good eneough huh........???......well heck. I already cut it. I took the wiring off and took all the covering off so i could see the wires. I needed to clean the connecting ends anyway and also blues,blacks,purples and some reds are to the point of looking like the same color...along with the dirt.

i think i got it all taken care of now. Wiring on my solenoid looks different than yours.I think someone somewhere added/cut/taped on the harness. My main problem that had been causing me grief for a long time no doubt was the plastic connection housing thing that harness plugs into. The two orange wires from my solenoid controlled separate side to the harness and one was not plugging together inside the housing and the other might have been but it was sporadic due to corrosion.

im gonna clean the ends and put it back together.Should be good now.

question though....why would you remove the purple wire from the solenoid....do you not use the solenoid at all in your set up? Wouldnt that be bypassing the solenoid as well?----maybe you dont need it i dunno, just asking.
Also there is a wire that runs off the harness on the right side(left as you look) that runs under the filter and into the covering of the fuel tube of the fuel pump.....what is that?---thanks.

 

What year is your truck? 83-86 is the old system, witch is the pic I showed. And 87-94 is the better solid state system.

 

its an 86. It looks like that but it has 3 wires coming off the secondary hot post. one is for the injector pump and the other two heavy guage orange ones goes to the glow plugs.--------i dont know if this was factory but it seems workable so i am going to keep it as i understand it now....even though it may be different.

 

I got a question quick. I have a 1978 f250 that i put my 78 cab on a 83 f350 6.9 frame. got everything done except my glow plug wiring and injection pump. Wondering how to wire all that up. I did switch glow plug relay if i could run a manuel push button thats what i need to be helped on. Thanks

 

Glow Plugs 101 Tutorial