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Just used my power probe. With the ignition key on and the NOS 2 speed wiper switch off, all terminals at the motor plug are dead. With the switch in low I get 11.4 volts at the terminal which plugs on the lower spade. With the switch in high, I get 11.4 volts at the terminal that plugs to...

Yup. That's what I thought but I cannot get the motor to work? I have the power probe hooked to the battery and I was trying to ask how to go about probing this to see if it works.

Just used my power probe. With the ignition key on and the NOS 2 speed wiper switch off, all terminals at the motor plug are dead. With the switch in low I get 11.4 volts at the terminal which plugs on the lower spade. With the switch in high, I get 11.4 volts at the terminal that plugs to the...

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Just closely checked and the plug in the car is the same as the one as was shipped as a 2 speed?? It is the one in the picture installed on the 3 speed switch. Not even close to the other switch???

Going to try pictures this time. I have two switches. One is part number 3488781 which I was told is a 1972 only two speed wiper motor switch. I have another switch which is part number 3488764 which I think is a 3 speed wiper motor switch. OK, so I had to purchase a used dash harness as...

OK. I think I figured my issue. Now I need to figure how to fix it. My car came with a 2 speed wiper motor. My dash harness was toast, so I bought a nice used clean one. After doing all the install I plugged in a wiper switch I had and the motor would not work. I realized that the new...

Ya, The tail lights/ brake lights/and fuel guage are all there on a different larger connector and all working fine. This connector is right next to them. I did have wires going to the seat belt pull out but I am not using them. I was wondering if this connector is what they connected to?

Hi, I have a blue and a gray wire going into a connector plug which has slightly angled terminals. The plug is located under and inside the drivers side kickpanel. Can't find it in my 72 diagram? Is it something to do with the seat belt light or buzzer that is attached to the two floor...

Yes, however, not realizing they were different configurations, I threw the entire old harness away because it was so chopped up?? Ugh...

I have read that the connector for the 2 and 3 speed switches are exactly the same but not all terminals are used? Is that correct? I also noticed today that my 72 Dart manual does not show a red wire at the switch, however, there is a red wire on mine? Is it a different year harness that I...

Yes, I agree. But I was wondering if I found a two speed under the dash connector, could I cut it in to operate the 2 speed motor without a lot of trouble regarding the wiring harness bundle under the dash?? Or should I change the motor to a 3 speed. I may have a hard time as the car is an...

I bought a used dash harness for my car as mine was hacked up. I am just now checking the wipers and I am finding that my 72 2 speed switch will not plug into the harness but I do have a 3 speed switch that will fit the harness connector plug? It is 3488764 and has a rectangular small box off...

OK., Just putting wiring together. Installed a new front harness. Installed new headlights and plugged them in. Installed new bulbs in my 72 Demon grille parking lights and plugged them in. The side marker and top of fender connections are just hanging loose because I did away with the...

Ok. Just twist the last blue wire to the other brown wire and solder and tape them together. That will complete the circuit that was interupted when u removed the ballast resistor. Ur done. Check everything first before soldering but solder and shrink tube or tape all splices.

I just did mine. Got rid of the dual ballast resistor. Take a tester and test those wires. One should be live with the key on and the other with the key off. Those are the start and run wires. All you need to do is tie them together and run the red wire from the msd box to them. What...

That's two confirms that I may have a ground issue. My other few gauges seem to work fine but the tach may be looking for a better ground as you stated. Time for some better quality wiring. I learned a lot with this build for sure. Wiring was never my strong suit.....

Looks like what I did? As far as signal check is concerned, MSD says check the gray wire with engine at idle. Use a volt meter set on DC and voltage in the gray line should be about 5v engine running at idle. Maybe I will do that today. I guess where I jumpered all the white ground wires...

I am not getting my autometer tach to run. I installed an MSD 6AL brand new. Instructions and MSD call verified I should use the gray wire coming from the msd box. They also told me the autometer tach I bought brand new needs no extra parts to make it work. Basically I have a keyed on...

I very carefully on a bench removed my standard printed circuit dash. I took the round harness plug that feeds all the instruments and cut the plug away from the wires. I installed all new autometer gauges in a new panel. I then used my manual to follow the color code wires. I added more...

I am trying to find key on 12v power? I have a probe light which a clamp to the negative battery post. With the key on, I am probing the two small terminals on the starter relay and nothing lights? I am probing the two field terminals on the alternator and nothing lights. The only way I get...

Makes sense. But I don't seem to have power to either field. I turned the key in the on position and probed each terminal with a probe light and I have nothing at either field. I should also state that I have an MSD6AL box and also did the MAD ammeter switch? So I don't know if this has...

ok, so I am looking to wire my electric choke on the holley carb. so far I just ran a short jumper ground from the ground terminal to under a screw that holds the choke assembly to the body of the carb as it shows in the holley website. Now I am looking to run a positive 12v wire to feed...

ok. so that is why I have an empty spade on my starter relay. so it goes on the spade next to the one on the angle? Yellow wire goes to the switch. brown wire goes to the transmission??

I know I have seen this many times, but I am at a loss for where it plugs to?? It is a brown wire??

hEY THANKS. Mine has the seven fuses. I will print and compare this to mine. Maybe I bought a 73 harness which was sold as a 72 Harness?? Now I have to work out whether there isd a big change ion the wiring it serves?

My demon has 7 fuses in the fuse block. Part number 3588198... my manual shows only 6 and has part number 2291593?? Can anybody here clarify this? I did buy a used good harness for this car and it appeared to look the same?? My car is a stock 340 a/c car???

Yes, My first thought was the MSD box, so I disconnected the wire on the positive post and as stated earlier the negative msd was not connected anyway. But the sparks were almost like welding? I have taken many cables off cars and really never saw sparks fly like tis. Maybe a little spark...

I just tried to hook my battery cables to my battery. Got the positive on the battery which also has the big red wire from the msd6 box and also a direct 10 wire from the alternator to do the mad ammeter change over to a volt meter. When I tried to install the negative cable to the battery I...