Why is my battery light on after changing alternator and battery?

It is possible that the problems that you have been experiencing with the bad alternators have damaged the battery causing it to be weak. This would make the Battery Light come on. It is also possible that there is a problem with the fusible link or the alternator fuse for the charging system.

Can a faulty voltage regulator cause your battery light and alternator light to come on?

But why do these dashboard indicator lights turn on? The battery light turns on because your electrical system can malfunction due to a bad regulator. Alternatively, the battery light can activate because you’ve got a bad alternator diode (or leaky diode) or issues with your alternator stator.

Why is my battery light on but still charging?

At times, the battery light remains on due to a weak connection between the car battery and the cables that connect to it. Apart from the issue of battery light on but alternator is charging, you might encounter quite a number of problems with your battery or your alternator that is causing your car slow to start.

What causes a battery light to come on?

The cause of the battery light could be a loose or corroded battery cable or other wire connecting components of the charging system, or it might be a problem with the alternator or voltage regulator. The alternator generates the power that is stored in the battery.

Is there a fuse for my alternator?

Most of the time, there’s a high-amperage fuse or fusible link between the alternator’s battery terminal and the battery. Also, there are usually low-amperage fuses in series with the alternator’s sense terminal and ignition terminal.

Why does the battery light come on when the alternator goes bad?

It is possible that the problems that you have been experiencing with the bad alternators have damaged the battery causing it to be weak. This would make the Battery Light come on. It is also possible that there is a problem with the fusible link or the alternator fuse for the charging system.

Why does my car need an alternator?

That’s because the alternator works in conjunction with your battery to ensure that all your electrical systems have the power they need to function.

What does it mean when your alternator belt starts slipping?

If your belt has gotten too stretched out or it is getting frayed and is starting to lose its grip, then it will start slipping from the alternator pulley. That means your alternator is not going to be getting power fast enough to keep up with the demands of your vehicle’s electrical system.

What happens if you leave your car lights on overnight?

While you might initially think that any problems with electrical things like lights or radio not working are directly related to the battery, the alternator is actually where most of the power in your vehicle comes from. Consider that if you were to leave the lights of your car on overnight by the next day your battery might be drained completely.