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Grounding issue I think

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Question ole wise ones, all my lights flicker when the car is running, with the car off and lights on there is no problem. Only when engine is running. Problem is with all lights, headlights, maker lights and the interior lights.


Amy ideas?

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Voltage regulator or worn brushes or slip rings in the alternator.


It could also be loose connections on the alternator or regulator.

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“If you can't explain it simply, you don't understand it well enough.”

--Albert Einstein


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Not sure what you mean by interior lights too?  The dash illumination or something else?


My bet is on a defective headlight switch.



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Looks like the wiring that goes to the voltage regular has seen its better days, there is no more insulation for about an inch on any of the wires where it plugs into the regulator.

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  • 1 month later...

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