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Going through batteries

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Old Nov 21, 2012 | 07:10 PM
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King Gamabunta-x7's Avatar
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From: Medford, Ny
Going through batteries

hey guys I could use a lil helP here. Recently got a used logicon from the furom. So I soldered the wires together and ever since then the battery never holds charge. I touch the brakes voltage drops from 14.5 to 13 and change! Drive still no charge . Then when you touch the brakes well same ****. I just don't get it I even unplugged the logicon and well the same bs. Can anybody give me any tips maybe in soldering that can cure this situation or maybe it's something else.

I have a new referbished alternator installed in the summer. I adjusted the alternator last night and found that the belt is slightly glazed on the underside. Perhaps that could be my issue?

None of the wires are touching any metal and resin core solder with flux
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Old Nov 21, 2012 | 09:12 PM
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Does the voltage drop only when the brake pedal is pushed, or will it drop when any sort of electrical load is added, such as lights, wiper, etc?

What did you solder?? Replacing the logicon is a simple unplug and replug, no soldering required.



Even with a substantial load suddenly placed on the electrical system, the voltage regulator should be quick to adjust, so you shouldn't see a voltage drop for more than a second. Highly unlikely that the sudden load exceeds the alternator's capacity without cooking a fuse.
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Old Nov 22, 2012 | 11:10 AM
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The voltage just drops when anything electrical is applied. Lights go dim windows start getting slow, but you mostly see if during driving and of course I only drove the car at night when elec load is greatest (due to work mostly). So when the brakes are applied you just see it take a dump .
Replacing the logicon is plug and play. But there is the set of wires from behind the dad that snakes it's way and connect the thing. Those wires. I'm gonna cut the and see if there is a difference with out the wires being soldered

I really dint understand it and my fuses seam intact.
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Old Nov 22, 2012 | 01:49 PM
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From: Whitewater, WI
Originally Posted by King Gamabunta-x7
The voltage just drops when anything electrical is applied. Lights go dim windows start getting slow, but you mostly see if during driving and of course I only drove the car at night when elec load is greatest (due to work mostly). So when the brakes are applied you just see it take a dump .
From what you described, this certainly sounds like the voltage regulator in the alternator is faulty. Spend the money on a new alternator, and I'd be willing to bet your issues will go away.

BTW, just because it has a newer alternator, doesn't mean its good.
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