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2007-01-06 00:37:06 · 14 answers · asked by luisao 2 in Cars & Transportation Maintenance & Repairs

14 answers

Most of the answers given are correct. It is a faulty voltage regulator. If you allow this to continue very long, it will ruin the battery and burn out the alternator as well.

I suggest you get this taken care of right away. And yes, most regulators used today are solid state and inside the alternator. You will have to replace the whole alternator or go to a repair shop and have them replace the regulator. If there are many miles since new you should go ahead and replace the whole thing.

2007-01-06 00:58:45 · answer #1 · answered by pinelake302 6 · 0 0

Yes the voltage regulator, its like a electrical tap that lets volts through to the battery. On older cars they are seperate items from the alternator but a lot of modern cars are built in to the alternator.A faulty fusebox can also cause this problem by sending the wrong information to the regulator as well, causing it to overcharge.

2007-01-06 00:46:52 · answer #2 · answered by iain xx 4 · 0 0

Yes the voltage regulator on the alternator has broke, this is a fuse that only lets enough current back to the battery whilst you are driving along. If at idle your car is charging the battery @ say 14 volts ( and providing enough current to run the engine) then when you start to move the engine speeds up causing the alternator to spin faster causing more current to be produced, so this regulator does the job of only letting enough through, so if this not working you are putting in a lot more current thus boiling the battery dry, time for a new alternator. Happy motoring.

2016-05-22 22:37:14 · answer #3 · answered by Anonymous · 0 0

A bad regulator.
A properly functioning alternator should produce more voltage/amps than the car should ever need.
It's the regulator's job to insure that the overcharge is grounded off before reaching the battery.

2007-01-06 02:41:18 · answer #4 · answered by strech 7 · 1 0

The regulator is not doing it's job for various reasons.
Either it is not operating properly or, not getting a good signal from the battery / vehicle so it doesn't know how much amperage to allow the alternator to produce.

Most garages should be able test the system and tell you where the problem is.

2007-01-06 00:39:58 · answer #5 · answered by shovelkicker 5 · 0 0

Your Battery-Regulator ! It is Funny you'd ask this Question. I am on my way out the Door right now, to get my Alternator replaced.
Had it done in July of 2006 and need a new one already. Last Time i went to a Shop wich used a AC/Delco one (GM). Cost me almost $600 and it did'nt last. This Time i called PEP-BOY'S and they quoted me $185 installed.
My Advice: Get more than one Quote

2007-01-06 00:53:38 · answer #6 · answered by connoiseur444 3 · 0 0

Replace the alternator! Unless you know how to replace the voltage regulator inside the alternator. If it's an older vehicle it may have an external voltage regulator which would be easy to replace.

2007-01-06 00:47:16 · answer #7 · answered by M.S.K.-II 1 · 0 0

It could very well be the Alternator which any advance auto or major auto parts store can check for you for free. But you may want to check and see how old your battery is first.

2007-01-06 00:50:52 · answer #8 · answered by cheeseburger_nparadise 2 · 0 0

what causes a motorcycle battery to overcharge?

2015-10-30 03:25:46 · answer #9 · answered by robert 1 · 0 0

Voltage regulator is stuck open unfortunatly most of them are built into the alt. so you will probley have to replace the whole thing

2007-01-06 00:40:36 · answer #10 · answered by Larry m 6 · 0 0

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