Ok guys, I need some help. I have a few random wires in my engine compartment that I can't figure out where they go. I've spent hours studying the AIM and my old photos to no avail. Any help would be appreciated. My car is a 71 BB w/AC. Here goes...

Wire #1 - From the A/C harness: long (+/- 30") dark green wire. Mine has a pigtail connection near its end where it turns into two purple wires with a two prong connector (I'm guessing the purple wires were added by Bubba?)


Wire #2 - From the A/C harness: shorter (+/- 18") black wire. This wire leaves the main wire bundle at about the same location as the green wire above. It leads to a single black terminal at its end.


Wire #3 - From the main harness: Two wires, one blue one light brown, leading to a two-prong terminal. The wire leaves the main harness at the same location as the wires for the wiper motor.


Wires #4, 5 & 6 - From the main harness: Three individual wires, two black (about the same length) and one insulated tan wire. All three wires leave the main harness at the same location as the wires for the wiper motor. I'm guessing the black are grounds, and the insulated wire goes to the coil, but I'm not positive.


Any help or hints would be really appreciated! Thanks!

 

Wire 2 I think goes to a terminal with on one side a spade to accept the connector and on the other side a hole which one of the blower motor fixation screws goes through
In the last picture, do you already have a ground wire connected to the wiper motor?
Nick

 

need a wiring diagram?

 

Thanks, I think I know where you're talking about. I'll take a picture to confirm.

Not yet. I'm unsure where the wires are supposed to ground to the wiper motor.

 

I've been using the wiring diagram in the AIM but I'm struggling to get these last few in place.

 

Wire #1 goes to the AC Compressor, it needs the two prong plug, the other wire is a ground.BUT...on mine the ground does NOT connect back to the Green wire,mine has the green wire going into the prong which plugs on the comp.and a black wire comming out of prong going to ground.

 

I think the A/C wire your referring to is the one just behind my hand int eh first picture. It's a heavier gauge green wire and has the two prong connector on it. From my old photos the green wire in my hand was running over by the blower motor, but I don't know what it connected to, especially considering the Bubba connector.

 

I also have a 71 BB with AC. I highly recommend getting the wiring diagrams from DocRebuild. They are really handy as they have actual pictures of every connector. http://docrebuild.com/oosoez.html

My best guess on these.

1. TCS temp sensor. That may not be the correct pigtail. Goes to pass side head.

2. Probably wiper ground. Might be AC blower or AC relay ground.

3. TCS/CEC solenoid on carb.

4. Yes, black is usually ground. Where they connect is the question. The tan one is a mystery. The coil wire(s) are black and yellow.

Do you have power windows or automatic trans? There are extra wires for these options.

 

OK, your right, they do go over there .The Green /Yellow wires hook to the AC plactic box cover way up out of sight on the fender side,look straight down beside the fender at the firewall and you should see the connection it plugs to. The single back wire plugs in to the blower motor, the ground for it.

 

I'll look into that wiring diagram from Doc Rebuild. I don't have power windows or auto trans

 

Thanks, I'll check it out.

Do any of these wires hook into the capacitor for the blower motor. That's the other component I need to figure out.

 

Ok, I took some more photos out in the garage. They were hard to get photos in the area of the blower motor, but I got a few good ones.

I suspect the green wire shown in photo 1 above is supposed to attached to the connector shown with the yellow arrow below. Could someone confirm this for me? The connector shown with the red arrow is attached to a pig tail connector that attaches to the ground for the blower motor.



Also, I believe the blower capacitor (shown below) is supposed to be connected roughly where the yellow arrow is above (or perhaps to the screws holding the blower motor to the blower housing).



And lastly, I suspect I have the purple wired connection shown below installed incorrectly. I suspect the purple wire is supposed to plug into one end of the blower motor capacitor which in turn connects to this terminal.



Can anyone confirm this for me?

Thanks,
Tim

 

From my previous post regarding your first post. Pretty sure I'm correct on #1 and #3.

1. TCS temp sensor. That may not be the correct pigtail. Goes to pass side head.

2. Probably wiper ground. Might be AC blower or AC relay ground.

3. TCS/CEC solenoid on carb.

4. Yes, black is usually ground. Where they connect is the question. The tan one is a mystery. The coil wire(s) are black and yellow.

 

With regards to your last picture I just looked at mine and yes the purple wire connects to the black, and black to the blower. And the cap is mounted to one of the blower screws.

 

Have you considered a new harness it looks like there have been many repairs in the last 41 years why not start fresh and not worry about a fire. Harness's dont get better with age. Just my two cents worth.
Mark

 

Thanks for the verification guys, this is a big help. I thought of a new harness briefly - until I looked at the price tag!

The rest of the harness is actually in pretty good shape, it's just these few that are causing me an issue.

 

The AIM also shows wiring connectors in the diagrams for the various applications. Combine what you see in the assembly diagrams with the wiring diagram schematic.