1972 Dart Swinger won't start
You have to check it out, or have someone help you. Download a shop manual from MyMopar. Access the switch connector coming out of the column and use a meter or test light to see if you have power there. I'll have to look it up............
IF it is IGN2 (no power when cranking, using the key) it is either the ignition switch, the switch connector, the terminal in the bulkhead connector, or someone messed with the factory wiring in the engine bay and that somehow got left "loose."
The 72 shop manual.........
page 8-144 is the wiring index
page 8-145 is the layout of the bulkhead connector
page 8-150 is the A body inst. panel wiring
Here is a clip from page 8-151, the ignition switch........
In the diagram, the YEL "start" wire goes from the switch out through the bulkhead and connects to one of the small "push on" terminals of your starter relay. It is hot ONLY in start
Next, BLACK, "accessory" should be hot either in "run" or "accessory"
Next, Dark BLue, "IGN1" is hot ONLY in run, NOT start This is what feeds power to the coil ballast, the blue alternator field, the VR IGN terminal, and a few other things depending on car model
Next, BRown, IGN2, is hot ONLY in start. This is the one to check Must be hot with key in "start"
Below that is RED the main power coming into the switch, hot all the time
You have to check it out, or have someone help you. Download a shop manual from MyMopar. Access the switch connector coming out of the column and use a meter or test light to see if you have power there. I'll have to look it up............
IF it is IGN2 (no power when cranking, using the key) it is either the ignition switch, the switch connector, the terminal in the bulkhead connector, or someone messed with the factory wiring in the engine bay and that somehow got left "loose."
The 72 shop manual.........
page 8-144 is the wiring index
page 8-145 is the layout of the bulkhead connector
page 8-150 is the A body inst. panel wiring
Here is a clip from page 8-151, the ignition switch........
In the diagram, the YEL "start" wire goes from the switch out through the bulkhead and connects to one of the small "push on" terminals of your starter relay. It is hot ONLY in start
Next, BLACK, "accessory" should be hot either in "run" or "accessory"
Next, Dark BLue, "IGN1" is hot ONLY in run, NOT start This is what feeds power to the coil ballast, the blue alternator field, the VR IGN terminal, and a few other things depending on car model
Next, BRown, IGN2, is hot ONLY in start. This is the one to check Must be hot with key in "start"
Below that is RED the main power coming into the switch, hot all the time
