72 dart blinkers

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CLAY72dart

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Okay so I had thought I fixed this before but I guess I didn’t my blinkers work sometimes but they stopped a while ago and I don’t know where to start. It’s both blinkers but the hazards work.
 
Okay so I had thought I fixed this before but I guess I didn’t my blinkers work sometimes but they stopped a while ago and I don’t know where to start. It’s both blinkers but the hazards work.

Start with a new or working flasher unit.
 
Or swap the hazard flasher for the signal flasher. There are two

Also the two get power from different sources, IE the signals get power through the ignition switch must be on, and the hazards are always hot.
 
Have you checked ALL you turn signal bulbs?

If you press the brake pedal do both brake lights come on?

If the flashers are on do both brake lights flash.
 
go to Rock Auto, look up your car and go to turn signal flasher and you will get pictures of them, and a source to buy one...
 
DACFC065-91AA-41D4-9E0A-056C215B825A.jpeg


Maybe I found something or maybe I’m stupid. This black wire does nothing but when the aligator clip is hooked to another positive and the blinker is used the light will work when touching the red and white.
 
You are saying that you are jumpering power to the red? Then if that works, the flasher is not receiving power. or the flasher is bad. You have a wiring diagram? Time to look at fuses, and where does that power come from?

Standby............

the red is the output of the flasher, feeding TO the turn signal switch.

The black Goes to "W" terminal on the bulkhead connector, used as a junction point at that turns into B1-18W which goes to the radio connector--ANOTHER junction point, to X12-18R, which finally leads back to the fuse panel
 

You are saying that you are jumpering power to the red? Then if that works, the flasher is not receiving power. or the flasher is bad. You have a wiring diagram? Time to look at fuses, and where does that power come from?

Standby............

the red is the output of the flasher, feeding TO the turn signal switch.

The black Goes to "W" terminal on the bulkhead connector, used as a junction point at that turns into B1-18W which goes to the radio connector--ANOTHER junction point, to X12-18R, which finally leads back to the fuse panel
The flasher is not receiving power. Via the black wire.
 
What connector? Flasher? those rarely give trouble but you should be able to probe it and confirm power. I would first try inserting the flasher "rotated" so you only engage one terminal at a time. "Feel" for how tight they are, and work it in/ out a few times to scrub the terminal clean. You should be able to swap the hazard flasher in there to try it, or just jumper a wire across the two connector terminals and the signals should "come on solid" when selected
 
Does anyone know if the switch that goes in the transmission could be the problem?
What problem? You talking about turn siganls? No. Automatic? That is the reverse lamps on the outside two, and the neutral switch on the center one
 
That is for the reverse lamps and neutral safety. Has nothing to do with turn signals
 
There are so many bulbs which in the back are turn signals
Sorry for the late response...

The brake light bulb has 2 filaments in it.

One is for the rear driving lights
The other is for the brake light.

The turn signal circuit cause one side brake light filament to light up, then the blinker causes that cir to go off then back on, off, on, off, on etc


The flasher circuit does the same thing but for both sides at the same time.


You really need to download your wiring diagram, or buy one from classiccarwiring.com
 
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