Can a voltage regulator work intermittently?

Unpredictable Engine Performance Engine stalling, sputtering and intermittent acceleration will occur when the vehicle’s voltage regulator is unable to handle the power put out by the vehicle’s stock (and faster-moving) alternator. This causes the regulator to burn out quickly because it was overworked.

What should I do if my Battery Light is intermittent?

You could take your alternator down to most parts shops and get it checked, but it may not show an intermittent charging issue. You can also check all of your connections and grounds to ensure they are tight, clean, and making good contact.

Why does the battery light come on after the alternator is replaced?

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.

What does the charge indicator light mean on a car?

Indicator Light On Usually, the first sign that your charging system is in trouble is a “battery,” “ALT,” or “CHARGE” warning light illuminating on your instrument panel while driving. It means that the alternator voltage output is below 12 volts, or over its limit or has stopped charging the battery and your car is running on battery power.

When does the Batt charge light stay on?

The batt/charge light only illuminates when the system does not detect a charge state from the Alt… so it is happening intermittently for now… it will soon stay on and you will replace the alternator. The test performed just caught it on a good day…with no vehicle movement or real world vibrations.

Why does the battery light stay on when the alternator is charging?

If your vehicle’s battery light stays on, even when the alternator is charging, it could indicate that the battery circuits or the alternator system are malfunctioning. This will lead to improper charging. Having the battery light turn on when you’re charging can sometimes happen. But the light should go off after some time.

How to troubleshoot intermittent Battery Light issue in..?

The easiest what to check for this is to have a helper in the driver’s seat, engine running, then you go through and move wires associated with the charging system around a little bit and see if you can get the light to come on. Like I said, a long shot, but about the only other thing you could check.

What causes the charge indicator light to come on?

You may notice: your ALT or CHARGE indicator light comes on, your engine is hard to start and cranks slowly, or doesn’t crank, your battery demands lots of water, your alternator makes noises, or your headlights suddenly go dim. These and other problems may be caused by a fault in the charging system.

How can you tell if your car charger is in trouble?

Usually, the first sign that your charging system is in trouble is a “battery,” “ALT,” or “CHARGE” warning light illuminating on your instrument panel while driving. It means that for some reason, the alternator has stopped charging the battery and your car is running on battery power.