How Often Should An Alternator Be Replaced?

Is it dangerous to drive with a bad alternator?

If you have a bad alternator, it is wise to replace it as soon as possible.

It can be dangerous to drive around with a bad alternator, especially in newer vehicles because they are far more electricity reliant than older ones, in ways that can cause serious trouble if they lose electricity..

How long does it take for a bad alternator to drain a battery?

20 to 30 minutesIf your alternator is going bad, the vehicle will shut down after 20 to 30 minutes. The alternator, as it fails, will drain the battery, causing all electrical systems to power down. Look at the dashboard when you turn the headlights or radio to the “On” position.

How much does it cost to fix alternator?

Waits says the average price to replace an alternator with a remanufactured one is $400, while Gunning adds that a remanufactured alternator on a typical, domestic car, costs about $300 to $500, including parts and labor. The price of a new alternator can run from $500 to $1,000.

What are the symptoms of a bad alternator?

6 Symptoms of a Failing AlternatorThe indicator light. … Headlights are dim or flickering. … Other electrical failures. … Strange noises. … Car stalls or has difficulty starting. … Battery dies.

What causes a brand new alternator to go bad?

Hereof, what causes a brand new alternator to go bad? Maintaining your alternator He adds that fluid leaks in the alternator or a tight belt can also cause damage to the alternator bearings, causing premature wearing.

How often do alternators fail?

100,000-150,000 milesOn average, an alternator fails after 100,000-150,000 miles. In cars that are driven daily, an alternator tends to last longer.

Do alternators fail suddenly?

The alternator is a key component in running the electrical systems in your car. … 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.

Can a bad ground cause alternator failure?

Poor ground connections are an often-overlooked cause of low charging output and alternator failure. Check for voltage drops at the positive and negative battery cable connections, the alternator BAT+ power connection and the engine ground strap(s). Voltage drops on the negative side can cause overcharging.

Is it OK to buy a remanufactured alternator?

The quality difference between a rebuilt and remanufactured alternator can be vast while the price difference may be small. The most important factor for buyers to consider is the reputation of the facility performing the work. A longer warranty is a good indication that the facility has confidence in their product.

What can damage an alternator?

Driving a vehicle through water that is deep enough to splash or flood the alternator can damage the alternator shaft bearings and possibly the brushes and electronics inside the unit as well. Water can also cause corrosion that over time will damage the wiring and bearings inside the alternator.

How long do alternators last?

about seven yearsThe 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 long can I drive with a bad alternator?

How long can you drive a car with a bad alternator? The answer is as long as your battery has power still stored. Once your alternator has stopped working, your vehicle starts to take the energy it needs from the vehicle’s battery.

Can a bad alternator destroy a new battery?

If you take your vehicle to an auto parts store they may give you a new battery for a few hundred dollars, without running any tests. Don’t make this mistake! A faulty alternator could ruin a perfectly healthy battery, which would put you further back from a solution than where you started.

Can you jump a car with a bad alternator?

Fortunately, it is possible to jumpstart your vehicle with a bad alternator so that you can get it back on the road and drive it to the nearest auto shop. The vehicle only needs enough electricity to power its onboard computer (engine control unit) and fuel injectors.

What kills the alternator?

“your car needed a new alternator, and this battery cable needed to be replaced also.” Running in full charge mode continuously can kill an alternator, so trying to have your new alternator try and charge your dead battery can result in immediate alternator failure.

How hard is it to change an alternator?

Replacing an alternator can cost you several hundred bucks at the local repair shop, but it’s one of the simplest repairs you can do at home. With a few tools and about an hour you can swap it out yourself — and keep your dough in your pocket where it belongs.