What are these wires

[Brad_H]

What are these wires used for? Please and thank you

 

[Brad_H]

Anyone know?

 

[blackazz]

The one in the top pic, white cap goes down to the brake valve on the frame.lower pic.lil green wire has something to do with the fuel system. something like that.hope I'm right.

 

[john keskes]

the bottom pic green wire is a Tach lead. I've got my aftermarket Tach hooked up to this. There is also a black lead next to it. that one is for the Fuel pump. The factory used these leads to test components during manufacturing

 

[Brad_H]

the bottom pic green wire is a Tach lead. I've got my aftermarket Tach hooked up to this. There is also a black lead next to it. that one is for the Fuel pump. The factory used these leads to test components during manufacturing

Where do they hook up to or they just left unplugged?

 

[notacarlo]

Left unplugged

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[novaderrik]

the only wire i know for sure is the tan one in the first pic that goes to the brake prop valve down on the frame rail... it's what triggers the "brake" light in the dash when a brake line explodes at the wrong time..

 

[buddy]

There are two open female electrical connectors on the drier side if the engine. One is the tach lead connector(green) and one is the fuel pump prime connector(black). Te two leads were used by the factory to test tees components.
I stole that info from a turbo buick I have. I'm not sure what the third wire is though.

 

[turbonut85]

On my 85....these are as follows:
Pic 1:
brown conn brake proportioning valve.
Black conn with purple and yellow wires is connected to the windshield washer pump
The grey conn with the green wire is not hooked up to anything.....and my tach lead is a green connector with two tan wires under the coil pack as seen here:

pic 2 is the fuel pump prime lead.