Ignition issue, paging Del

67Dart273 said
First thing I'd do is check the belt, second thing is check brushes.

If neither, then "try to get it to act up" (We ALL hate intermittents LOL) while monitoring one of the other field connections. The blue wire field should always have 12V in "run" and the green will vary, but should be "low" when charging. That wire acts as a ground controlled by the VR. Other than that check the ground on VR, and work the VR plug in/ out several times in case it's corroded.

so it sounds like you're leaning towards charging system problems? I was too until it began to misfire and then I wondered if the ecu may be dying.

If it ever stops raining here I'll get out and do some checking.

Dana67Dart said
Put a volt meter on for your next drive. If voltage goes down as it goes into discharge you are loosing charging someway.

Electric or mechanical fans?
What type of ignition system do you have?

Does it do this when in neutral in the driveway?

Personally I would have the charging system checked at the local auto parts store.

the only loads on the car is the wipers, headlights, blower motor for HVAC and the '73+ chrysler electronic ignition module. It does do it in park and neutral but oddly it doesn't seem to do it when the engine is cold. If I dont find anything obvious I'll probably have the charging system checked.