1970 cutlass heavy gauge black wire
#1
1970 cutlass heavy gauge black wire update 4/26/16
If some one could please advise me as to where this wire goes and it's purpose. I have tried to trace this wire from the wiring diagram in the chassis service manual. It appears to have constant power. Thank you for any help.
UPDATE
this wire is the other second heavy gauge wire that is in this cluster of wires. The other heavy gauge wire is the purple wire that goes from the starter motor. This black wire comes out of the block just under the set of wires that goes to the wiper motor and voltage regulator. the color of wires are Blue, yellow, black w/orange stripe, green and heavy purple, then this heavy large black wire that looks like it plugs somewhere. I have tried to trace this from the manual but can't seem to find it on the diagram. thanks guys for any help.
UPDATE
this wire is the other second heavy gauge wire that is in this cluster of wires. The other heavy gauge wire is the purple wire that goes from the starter motor. This black wire comes out of the block just under the set of wires that goes to the wiper motor and voltage regulator. the color of wires are Blue, yellow, black w/orange stripe, green and heavy purple, then this heavy large black wire that looks like it plugs somewhere. I have tried to trace this from the manual but can't seem to find it on the diagram. thanks guys for any help.
Last edited by sealw98; April 26th, 2016 at 09:41 AM.
#4
That looks like the feed for a power option. What options do you have on the car? PW? PSeat? etc?
#5
power option
No power options except for power steering.....lol nothing but a AC car and everything else is manual doesn't have rear defrost or anything of the sort pretty much a plain jane.
#7
The picture has no arrows or whatnot to indicate which one you are referring to.
If the wire has power all the time and goes near the fusebox bulkhead and you have AC, it may be for the Blower Motor High Speed function.
Best bet is to trace it and see where it goes to/from.
Or disconnect it and see what stops working.
If the wire has power all the time and goes near the fusebox bulkhead and you have AC, it may be for the Blower Motor High Speed function.
Best bet is to trace it and see where it goes to/from.
Or disconnect it and see what stops working.
#8
I'm sorry about arrows
I have no ideal how to draw arrows , the wire comes from the left side or if your sitting in the car it would be the right side of the fuse block. The side that appears to feed the AC wiring. On the end of the plastics terminal it has 23 stamped on it if that helps. Where does the AC blower high side connect at?
#9
I have no ideal how to draw arrows , the wire comes from the left side or if your sitting in the car it would be the right side of the fuse block. The side that appears to feed the AC wiring. On the end of the plastics terminal it has 23 stamped on it if that helps. Where does the AC blower high side connect at?
:-)
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Select a color like say red or green
Select a tool like say the Draw A Line Tool.
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Last edited by Octania; December 27th, 2015 at 11:31 AM.
#10
updated info on the mystery wire,
Is this possibly a ground wire for the fuse block or something/ is there such a thing? I took the ohm meter and connected to the plug of this wire and everywhere I would touch on the fuse panel it would make an audible sound, thanks for any assistance.
#11
There is no such thing on an Olds. What does "audible sound" mean? Every ohmmeter I've used has a, er, meter. Does the sound indicate continuity or power?
#16
The only single black wire that passes through the firewall connector is the wire from the horn button to the horn relay, which is located on the driver's side inner fender. It should not be grounded all the time, unless the horn button is messed up or missing. It's also a 20 ga. wire, not a heavy gauge wire.
#19
The ceramic ignition resistor is NOT factory-installed, so a previous owner has messed with the car, meaning you don't know what you have. There is no "power to the other side" wire. As I pointed out above, there is no heavy gauge black wire like that on the factory wiring diagram. Did you trace the other end of it? That would answer a lot of questions.
#21
Really appreciate your patience and help joe, I have followed it all the way back to the firewall and it's the wire that is in between the wiper motor and the AC harness. I'm a little hesitant in attempting to unscrew the harness from the fire wall as I'm not to comfortable with that aspect.
#23
#27
Thank you, but... No - the most helpful view would be head-on, looking directly into the plug, like your camera was the receptacle.
That way we can see what special characteristics the "missing" part has.
- Eric
That way we can see what special characteristics the "missing" part has.
- Eric
Last edited by MDchanic; April 27th, 2016 at 10:44 AM.
#28
That's a broken HEI power connector - the white one in this photo. The locking tab is broken off on yours. Again, NOT factory on your car, which is why no one can place it. A previous owner put that in. I assume the distributor was converted to HEI?
#29
Thanks, Joe - I knew someone (other than me) would recognize it.
I was about to go through the electrical diagrams to see whether any of the stock connectors looked like that, as I didn't remember any.
- Eric
I was about to go through the electrical diagrams to see whether any of the stock connectors looked like that, as I didn't remember any.
- Eric
#33
Sorry guys for all the frustrations, but I truly appreciate your help. So now it explains why it's hot continuous and why I can't seem to find the wire from the harness to the coil. only have the starter to the coil "yellow" wire. Thanks so much for your help and yes the original motor did have Hei and I have just a Petronix kit in my distributor. Goes to show you when you buy somethings you need to have someone with knowledge review it with you.
So I am correct in my assumption of why it has power all the time?
I wish I could take a real good photo as it looks factory.
So I am correct in my assumption of why it has power all the time?
I wish I could take a real good photo as it looks factory.
Last edited by sealw98; April 27th, 2016 at 08:12 PM.
#35
Sorry guys for all the frustrations, but I truly appreciate you help. So now it explains why it's hot continuous and why I can't seem to find the wire from the harness to the coil on had the starter to the coil "yellow" wire. Thanks so much for your help and yes the original motor did have Hei and I have just a Petronix kit in my distributor. Goes to show you when you buy somethings you need to have someone with knowledge review it with you.
So I am correct in my assumption of why it has power all the time?
I wish I could take a real good photo as it looks factory.
So I am correct in my assumption of why it has power all the time?
I wish I could take a real good photo as it looks factory.
FYI, it would have helped to know the car had a non-original HEI as well as any other non-factory items. Lacking that info, we can only assume the car is stock.
#36
Well, the original motor didn't have HEI, as it hadn't been produced then...
It should have power in Start and RUN, but not in ACC, LOCK, or OFF.
- Eric
edit: Curses! Joe beats me again!
It should have power in Start and RUN, but not in ACC, LOCK, or OFF.
- Eric
edit: Curses! Joe beats me again!
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