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Quote:
Originally Posted by JayChicago
Theoretical guess here:
Original post said: "when I put on brakes the dash lights go dim and headlights get even weaker". That makes me think that when brake lights go on the entire ground bus (the body of the car) is being charged, reducing its ability to take-on ground voltage. So why is the ground bus not immediately discharging to the battery as it should?
I would suggest cleaning/tightening the battery-to-body cable connections.
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I agree looks like body has either no ground cable or a weak ground cable.
Grounding is a lot like lightning it will seek a path of ground usually where
you do not want it. I have seen smoked - melted, from speedometer cables
to E brake cables to choke / throttle cables cause the system is 'gasping' for
ground. Just look at these new cars ground wires all over cause most of the
vehicle is plastic. Wood and fiberglass boats = a mile of grounds. My best
friend is many jumper wires, a test light and volt meter. I grew up with
6volts and my father got into road rage with blinding mirrors pulling over
then following said car blasting him with his high beams LOL causing a mad
mommy good ole days