How long will a whining alternator last?

The battery’s job is to start the car, and the alternator keeps it running.” Gunning says an alternator typically lasts about seven years — or about 100,000 to 150,000 miles, says Waits. Some mechanics, though, say they typically see alternators last about 80,000 miles.

How do I get rid of alternator whine?

You can usually isolate the head unit as the problem by disconnecting the RCA cables from the amplifier and inserting a muting plug (RCA plug with the connectors shorted together). This also eliminates any noise from components upstream of the amplifier such as crossovers and equalizers.

Can a bad battery cause a whining noise?

The battery light is an indication that something in your charging system is not working properly such as a weak battery (usually noticeable with a weak start), a failing alternator or a bad voltage regulator. The whining sound may be the alternator failing which is common when this happens.

Is it safe to drive with a noisy alternator?

The truth is, there’s no way to know how long it will last. It might last several months just making a noise and doing nothing worse. Or, it may end up failing the next time you start your car. However, driving with a dying alternator can cause other problems, such as damaging the battery.

What is the noise that a bad alternator will make?

If you’re hearing a grinding sound in your car, this could indicate that the alternator is going bad. The grinding sound may be caused by a worn-out bearing. Your car can also make a whining sound when the voltage regulator is sending signals to the alternator to charge more than is necessary.

Why does my new alternator whine?

Alternator whine is caused by a difference in electrical potential (voltage) between two points. It’s usually caused by a ground connection that is less than ideal. The main culprits are the amp, the head unit and any intermediate components such as crossovers and equalizers.

Will a bad alternator make a noise?

An alternator will alsways make noise. The more of a load you put on it, the louder it will get. Any grinding noise (like a bad water pump) means the alternator is on the way out. The reason why your car is slower when you are using it is because the more amperage you pull, the harder it is to turn the alternator.

Why does the alternator make a clicking noise?

An alternator may make a clicking sound if the bearings or other internal components are beginning to wear. Once the alternator has been identified as the source of the sound, remove the drive belt and turn the pulley by hand. If the pulley does not turn smoothly, the alternator is worn.