How Long Does an Alternator Last? An alternator should last between 80,000 to 150,000 miles, which usually means around 7-10 years. However, if your vehicle is driven hard around Venice or Bradenton, your alternator may need to be replaced sooner.

What is the average lifespan of a car alternator?

Alternators have an impressive lifespan of seven years–or between 80,000 to 150,000 miles. But be careful that you are not wearing it out prematurely! Here are some common causes of early alternator failure: Alternator quality.

At what mileage does an alternator go bad?

However, we can say with near certainty that an alternator will not last for the average life of a vehicle. In general, you can expect alternators to last about 6-10 years, or about 80,000-150,000 miles.

What are the symptoms of a bad alternator?

7 Signs of a Failing Alternator

• Dim or Overly Bright Lights. ...
• Dead Battery. ...
• Slow or Malfunctioning Accessories. ...
• Trouble Starting or Frequent Stalling. ...
• Growling or Whining Noises. ...
• Smell of Burning Rubber or Wires. ...
• Battery Warning Light on Dash.

Do alternators fail suddenly?

When your alternator begins to fail it can cause a variety of different electrical problems in your car, and eventually cause a breakdown. Alternators can go bad suddenly, or slowly over time.

This Alternator Will Destroy Your Car

How much does a new alternator cost?

Typically, it costs between $400-$600 to replace a faulty alternator with parts and labour. However, this price usually reflects a remanufactured alternator. New alternators can run you approximately $500 to $1000, again, depending on the type of vehicle you have.

How often should alternator be replaced?

An alternator should last between 80,000 to 150,000 miles, which usually means around 7-10 years. However, if your vehicle is driven hard around Venice or Bradenton, your alternator may need to be replaced sooner.

What causes an alternator to fail?

Alternators have a number of moving parts, so as they get dirty and are subjected to extreme temperatures, those internal components can wear out, causing the alternator to go bad. One of the most common problems you're likely to experience with an alternator is a failure in the bearings.

Do I need a new battery after replacing alternator?

Should the battery be replaced whenever an alternator is replaced? It's not necessary, however it's not uncommon for an old battery to fail when an alternator stops working. This happens because when the battery is completely drained, it deteriorates sooner.

What shortens the life of alternator?

The harder your alternator has to work, the shorter its performance life. If your vehicle frequently performs heavy-duty hauling, has to run for extended periods, or if you love turning up your headlights and sound systems to the max settings, you are putting a strain on your alternator.

Can alternator last 15 years?

Alternators are bolted to the engine and are driven by a serpentine, or drive, belt. You might be surprised that your alternator is usually maintenance-free. Typically, they last 10 to 15 years without needing to be repaired.

How can I make my alternator last longer?

In addition to mitigating the effects of external factors like heat, vibration, and contaminants, you can also prolong the life on an alternator by replacing certain components before they wear out. For instance, some manufacturers recommend that you check the regulator and brushes every 12 to 24 months.

Should I replace alternator or buy a new car?

It's usually a better idea to replace the alternator entirely if it is malfunctioning. While new ones can be spendy, they are usually a better choice than remanufactured or rebuilt options. Those probably won't last as long as a new one since the mechanical parts have miles on them already.

Can an alternator fry a battery?

A bad battery won't damage the alternator, but a bad alternator can damage a battery. The car battery simply isn't made to deliver electrical energy for extended periods, so both components need to be functioning optimally.

Will a failing alternator throw a code?

HOW TO DIAGNOSE A FAILING ALTERNATOR. If you have a “Check Engine" light on, connect a code reader to the diagnostic port. If you find code P0562, you very likely have a failing alternator (note that codes may vary by vehicle make/model/year). Get it checked out before it fails entirely.

What happens when alternator goes out while driving?

If your alternator fails while you're driving, your battery should still provide electrical power for your car. If you start to notice things like flickering lights, your radio turning off, or other signs of low power, pull over and call a tow truck.

Can AutoZone tell me if my alternator is bad?

We can do a charging test in the parking lot which tests the battery, and will determine whether or not your system is charging properly. This test may not pinpoint whether the alternator is bad or not, but you can also remove the alternator from your vehicle and have it tested at the nearest AutoZone auto parts store.

Can a mechanic change alternator?

That extra power comes from larger amp alternators that cost more to build. Repair cost aggregate websites like RepairPal show an alternator replacement averages between 1 to 3 hours of work whether doing it yourself or having a mechanic swap it out.

What does a broken alternator sound like?

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.

Will a new alternator improve gas mileage?

Improvements to alternator efficiency can reduce the amount of power drawn from the engine and thus lead to improved fuel consumption.

How can I protect my car alternator?

If you wash your engine, never get water or soap in or on the alternator. It's also important to stay on top of your oil and coolant levels. If either of these are too low, the alternator, not to mention many other components, will not be able to work properly and will wear themselves down.

Can cleaning an alternator make it work again?

The process involved is pretty easy, and you do not need any sophisticated tool for cleaning the alternator. With water and a degreaser (water-soluble), you can make your vehicle's alternator look as new, getting rid of all contaminants.