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post #1 of 16 (permalink) Old 06-13-2013, 11:29 PM Thread Starter
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I'm sure we've all been in a car where the headlights dim when the rear defogger is turned on. (or something similar) That's a case where the power source can't deliver enough to all the demands at once. Can the same sort of thing happen via a ground? i.e. If multiple items are grounded together, can one high powered item "use up" so much of the ground that the other ground-demanding items falter due to diminished ground remaining? (probably assuming here that we have a marginal ground to start with)

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post #2 of 16 (permalink) Old 06-14-2013, 02:11 AM
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Hey Pete, short answer - yes. I have a 2012 Dodge Ram with quite the stereo. Even tho the alternator is 220 amp the onboard computer decides what gets output. I've had a helluva time with the lights dimming and have had several "experts" look at it. I've had the ground wires effectively doubled from the alternator to the battery, from the chasis to the battery, and the alternator to the chasis. Simply put, my problem is the computer, and the only way around it as seen is for me to go HID with ballasts instead of Halogen, but to do that correctly is gonna be like $400.00. Don't know if this helps any, but it touches along the lines of your dilema.

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post #3 of 16 (permalink) Old 06-14-2013, 02:29 AM
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You can't use up to much of a ground, toejam's problem sounds like his alternator isnt able to put out enough amperage, sounds like he would possibly need a second alternator or a second battery or both. But again your aren't going to use too much of a ground!


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post #4 of 16 (permalink) Old 06-14-2013, 06:55 AM
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Plus 1 with Joshn... you can't use up a ground connection... electrons just don't line up to get out a ground.

This is a supply side problem... demand exceeds availability.

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post #5 of 16 (permalink) Old 06-14-2013, 08:32 AM
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Quote:
Originally Posted by petegtsv10 View Post
I'm sure we've all been in a car where the headlights dim when the rear defogger is turned on. (or something similar) That's a case where the power source can't deliver enough to all the demands at once. Can the same sort of thing happen via a ground? i.e. If multiple items are grounded together, can one high powered item "use up" so much of the ground that the other ground-demanding items falter due to diminished ground remaining? (probably assuming here that we have a marginal ground to start with)
No, not possible.

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post #6 of 16 (permalink) Old 06-14-2013, 08:35 AM
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Quote:
Originally Posted by petegtsv10 View Post
I'm sure we've all been in a car where the headlights dim when the rear defogger is turned on. (or something similar) That's a case where the power source can't deliver enough to all the demands at once. Can the same sort of thing happen via a ground? i.e. If multiple items are grounded together, can one high powered item "use up" so much of the ground that the other ground-demanding items falter due to diminished ground remaining? (probably assuming here that we have a marginal ground to start with)
nope.
supply side issue....i have not heard/encountered a "controller limit" as described by toejam, although it is reasonable that i am out of date.
but not ground...if that sort of thing happened, algore would have told us already...

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post #7 of 16 (permalink) Old 06-14-2013, 02:56 PM
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Its not the ground its the power thats being drawn.
Open your fuse panel in your house the grounds are all bundled together. Your regulator or alternator will only supply so much power to the battery. So if your using to much it can't keep up. On a bike your screwed there is now way to put more power to a bike. As for car or truck you can find a high out put alternator. If your in a big enough city look in yellow pages for car electrical shop that might be able to rewind yours for higher out put. Or like the man said add a extra battery like campers do

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post #8 of 16 (permalink) Old 06-14-2013, 03:52 PM
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No, You can't "use up" a gound.
Yes, a poor or improper ground can cause the symptoms you are describing.
Yes, a short can cause the syptoms you are describing as well as overloading the electrical system.

What you got on there that is pulling so much load? Something? You know what to do, get rid of it.
Nothing? Good luck. Start at the battery terminals, and don't shortcut it, Clean and properly install, both of them. Go to the starter and do the same. Find the main ground and repeat. If this doesn't do it, you are in for the long haul in searching.

Hard to say since the question is kinda vaugue.

Good Luck

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post #9 of 16 (permalink) Old 06-15-2013, 08:50 AM
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We don't know how much stuff you have added to your bike. You have a lot of amps available though. Resistance plays a large role in what is going on also. The more amps you pull the lower the resistance must be. If you added something that has less resistance, the flow will go that way (i.e. led lights without load compensator). If you have corrosion, the more power applied the more heat (resistance) at connections. If you added anything to the bike pull it off and check.
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post #10 of 16 (permalink) Old 06-16-2013, 01:09 PM Thread Starter
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I've run a dedicated ground from the Stebel to the battery and re-grounded my other mods to the frame rather than the gas tank. (heated grips, PCV, AT and brake module) Everything is finally good now!! All hesitations and surges are gone.

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