HELP me identify these wires

[ocbaud]

the 2nd,3rd, and 4th pictures are all connected on the same bundle, along with the electric chock plug, oil pressure, and stuff.

[1974ChevyC10]

1st pic-dont know
2nd pic-looks like the wires that connect to the starter solenoid
3rd pic-those look like your alternator wires
4th pic-dont know
5th pic-dont know

[Blue82Chev]

5th pic looks like your coolant temp sensor.

[87 STEPPER]

OK,
1st-look's like the black connector for the windshield wiper motor the orange one unk.???
2nd- look's like the starter lead's.
3rd-look's like the alternator lead's.
4th-the grey one look's like a coolant sensor connector the black one unk.???
5th-is a knock sensor.

Why did you unhook all this stuff without marking them???

[MidnightBlues]

Agree with Bruce , exept pic 1. Seems like the 700R4 lockup wiring.I had that same colours.(Removed everything and renewed all wiring)

[apstguy]

1 - that green one is disconnected in my truck also for the other one I have no idea
2 is starter
3 is alternator
4 is choke (black) and the mixture control solenoid for the carb (white)
5 knock sensor

[Free88]

What year truck?

# 1 looks to me like it would connect to the oil pressure unit behind the ditributor, green wire, orange plug. The other may connect up to the washer pump on the wiper motor.
#2 Starter
#3 alternator
#4 ?
#5 Temperature Sendind unit.
Dig out the shop manual. Masking tape and a pen would saved ya a lot of grief. Not a 100% of my guess but will help maybe.

[ocbaud]

okay i remember for sure now.... kinda

1:???
2:starter leads
3:alternator wires
4:carb stuff
5:knock sensor



so, the starter leads i need to keep for sure. the alternator wires i can ditch cause i'm going to a 1 wire alternator.

will i need to keep the wires in the 4th picture even if i'm not running a stock qjet?

[apstguy]

What you have down is correct. If you are no longer going to use a ECM or ESC you won't need the knock sensor either.

The 4th pic - you will only need the choke wire for an electric choke. If the carb you are getting is come other style choke, you won't need it but with it unplugged, your choke light will be on all the time. If you go that route we can help you fix it.

[apstguy]

I need to trace my wire that looks like #1. I have 2 of those connectors disconnected under my engine bay and have no idea where they go.

[ocbaud]

that black wire in the 4th pick, isnt the choke connector. i already have that off to the side, but yes, i will have an electric choke.

the knock sensor i wont have anyway with the new engine

[ocbaud]

Originally posted by apstguy
I need to trace my wire that looks like #1. I have 2 of those connectors disconnected under my engine bay and have no idea where they go.

if you look hard enough in the picture, you can see its going into the fire wall. beyond that, i havent traced it anymore

[apstguy]

I was talking about the green and orange one but I don't know about that black wire.

[greg0380]

The 4th picture is the connectors for a dual capacity accel. pump for the carb. The white connector would plug into the solenoid on the carb and the black connector (with one wire on it) plugs into a temp. switch mounted on the t-stat housing. Assuming you are using the stock q-jet.

[ocbaud]

Originally posted by greg0380
The 4th picture is the connectors for a dual capacity accel. pump for the carb. The white connector would plug into the solenoid on the carb and the black connector (with one wire on it) plugs into a temp. switch mounted on the t-stat housing. Assuming you are using the stock q-jet.

and if i'm not, i dont need it?

[greg0380]

No you don't need it if you are not running the stock carb. If you trace the 2 wires on the white connector, the pink wire goes up to behind the dash to a splice (+12 volts), the other wire goes to the connector that would plug into the temp. switch.

Hey, if you are going to trash those two connectors, would you mind donating them. I have the same setup and my connectors are all buggered up.

[Jonboy]

Eric, just a thought, but you might be better off finding an engine wiring harness in a junk yard from an earlier truck, that does not have a lot of the ESC and other stuff in it. Maybe from a 78 or older truck. That may simplify your wiring a ton, and still plug up to the fuse block connection.

[Phuloi68]

I am looking at an 1985 wiring diagram and it shows an green wire with orange plug and says it's a test plug. I kinda of think it might be used for diagnastic checks when in for repairs, like hooking up to a computer or something like that.

[Slonaker]

I have that same green wire with orange plug. It isn't connected to anything, which supports the theory that it is for testing purposes.

Slonaker

[MidnightBlues]

The green wire/orange plug was also not connected in my truck.But the other end of this wire disapeared into the 700R4 harnass.

[ocbaud]

i got rid of all the connectors in pictures 1,3, and 4

the connector in picture one runs to a little plug under the dash that goes to the cruise control!

[TIMSPEED]

Hey Eric, under my hood I have very few wiring connectors
1.) Starter
2.) Distributor/Tach
3.) Electric Choke
4.) Alternator
5.) Temp Sensor (Drivers side head between 1 and 3)
6.) Headlight harness ran along drivers side fender
You really shouldn't need any more than those...IIRC

[ocbaud]

Originally posted by TIMSPEED
Hey Eric, under my hood I have very few wiring connectors
1.) Starter
2.) Distributor/Tach
3.) Electric Choke
4.) Alternator
5.) Temp Sensor (Drivers side head between 1 and 3)
6.) Headlight harness ran along drivers side fender
You really shouldn't need any more than those...IIRC

i have

1.starter
2.dist
3.electric choke
4.oil preasure sender
5.temp sensor
6.headlight harness
7.a/c stuff