Eee-youch! 30k Service $$$$$$$$$$$$

From : jeff mayner

Q: max340 wrote i dont think maz realized that we were talking about voltage drop across the wiring. i realize exactly what you were saying and i got battery voltage. because you took out the bulbs. measure the voltage drop across the wires like i described to see what the bulbs arent getting. or measure the drop across the bulbs to see what they *are* getting. or measure both add them up and theres your total. but the circuit has to be operating. like bryan swadener said you measured a broken circuit. you measured nothing. sorry to disappoint you folks but i do know what i saw and how to operate a vm properly. evidently not. he just looked at the empty socket found about 12 volts there and concluded that no volts dropped on the ground or something. hardly. i find it fascinating that anyone would believe that an automotive electrical system would show anything but battery voltage no matter what load was placed on it. check the voltage on the lighting circuit youll find the same voltage at the battery given the same load. you do realize that both the battery and the load are in the circuit and thus will read the same voltage right you refer to the load as if the bulb is all of it. nope everything in the circuit is part of the total load. wires switches connectors everything. so it doesnt matter if the circuit has amp robbing stuff in it or not the voltage at the battery damn well better be the same as that in the circuit. the voltage at the battery is the same as the total voltage drop across the circuit. it isnt all across the bulb. but to say that a modern charging system with a voltage regualtor remember that cannot compensate enough to keep a nominal charge voltage of 13.5-14.5v from dipping below 12v in any circuit when the headlights are operating is reaching a bit. thats probably why nobody said that. were discussing one circuit and the total voltage drop in the circuit may indeed be over 12 volts but its not all across the bulb. id be further fascinated to know what you think the voltage drop is in an ignition circuit or any of the circuits in the pcm network since you think the headlights drop the voltage so much. the voltage drop you are supposing ought to cause havok in the sensing circuits since they are monitored by the millivolt in some cases. so what there would be havoc if voltages werent controlled there. resistors are intentionally put in place where needed in electronics resistance isnt always a bad thing. hell with new batteries the grid heater in my 00 only drops the voltmeter on the dash from 15v to 13vengine running. ill bet it draws more than the headlights and it still cant pull enough amps to drop voltage below 12v and yet the headlamps dim. wow maybe its the amperage draw that is the cause where do amps come from what pushes them which as i mentioned before is the reason why mr. stern supplies a heavier guage wire not the volts. he doesnt supply any wire. or is my voltmeter incorrectly installed from the factory max life liberty and the pursuit of any jackass that threatens it. embellished usnavy slogan .