73 Duster Electrical Issue

Electrical and Ignition

  1. 67Dart273

    67Dart273 FABO Gold Member FABO Gold Member

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    Yes the relay pictured is the starter relay. The bottom terminals are the relay coil (electromagnet). The YELLOW wire is "start" voltage coming from the igntion switch. Make sure you have that. Put a light or meter on the yellow wire--just stick it in the connector as it's still connected, and see if you have power when someone turns the key to start

    Does it crank? No? No remove the OTHER push-on "dark colored_ wire. This goes to your neutral switch and provides a GROUND for the relay when the transmission is in park or neutral. Take an alligator clip wire and ground that terminal. Not the wire, the terminal on the relay. Try to crank it again. No crank? The yellow is hot? Then you need a starter relay.

    On your relay, the "big stud" with nut is the battery power and that is a junction point AS WELL AS one of the relay contacts. The other remaining wire goes to the starter solenoid. So jumpering those two big terminals with anything metal--pliers, screwdriver, etc, should cause the engine to crank.
     
  2. 67Dart273

    67Dart273 FABO Gold Member FABO Gold Member

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    I cannot tell what colors you have there on the ballast. "One end" of the ballst should have two wires connected together. That should be power to the ballast. If you disconnect all the ballast wires, and turn the key to "run" those two wires should be "hot." I have no idea why hooking th brown to them would cause heating, unless you just left the key on such as:

    IN STOCK CONFIGURATION, that is before you modified the car, leaving the key in "run" WILL result in the coil , the ECU, and the ballast drawing current and getting hot.

    With the key in run, either running or stopped, that ballast will get hot--too hot to touch
     
  3. 1972trucks

    1972trucks Well-Known Member

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    Call me a dumb ass. . had the trans linkage backwards so trying to start it in L1
     
  4. 67Dart273

    67Dart273 FABO Gold Member FABO Gold Member

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    LOL stuff like that has happened to all of us
     
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