QA

Question: How Do You Replace An Alternator

Can you replace your own alternator?

In general, it will take about two hours for you to replace an alternator on your own, though this could vary somewhat depending on your knowledge of car mechanics. If you take your car into a shop in order to have the alternator replaced, timing may vary somewhat, and you may have to leave the car for the day.

Is changing an alternator hard?

It’s not horribly difficult, but there’s a lot more work involved than ever before and one might need some unexpected tools. Open the hood, find the alternator, and determine whether your tools can get onto all the fasteners they need to get onto, including those for the serpentine belt tensioner, if so equipped.

Can AutoZone replace an alternator?

When your vehicle is running, your alternator powers the electrical system. Even worse, a malfunctioning alternator eventually leads to a dead battery, and your vehicle can’t start. Avoid all of this hassle by replacing your alternator and alternator parts with the help of AutoZone.

How much does it cost to change an alternator?

Alternators can average anywhere from $100 to $350 depending on make and model. Most vehicles will have an average cost between $350-400 for the total job of an alternator replacement if no other parts need to be replaced. If the serpentine belt is included in the process, add another $20 to $50 to your bill.

What tools do I need to replace my alternator?

In addition to a replacement alternator, you’ll need some tools: Hand tools like ratchets, sockets, and wrenches. Belt tensioner tool. Gloves and safety gear. Battery tender or memory saver, if necessary. Jack, jack stands, and wheel chocks, if necessary.

Do you have to replace battery when 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.

How long does it take a mechanic to change an alternator?

The make and model of your vehicle will determine the exact time it takes to replace the alternator, but usually, one to two hours is sufficient.

Is it worth replacing an alternator?

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.

Is replacing an alternator a big job?

When the engine is running, the electrical system is powered by the alternator which replenishes your battery so it doesn’t go flat. It has an aux belt which goes around it. There are a couple of bolts, one on the bottom and one on the top, so it’s not really a big job to replace them.

Is my alternator bad?

Signs of a Bad Alternator Some of the things to look for are no-starting and trouble starting, dimming lights and problems with stereo system output. If your car starts but stalls when you’re underway, your battery is probably not being recharged due to a faulty alternator.

What causes an alternator to fail?

Most of the time, alternators fail as a result of age or use. However, some other factors can cause an alternator to fail prematurely. Fluid leaking on the car alternator can commonly lead to failure. Often, engine oil or power steering fluid can work its way into the alternator and cause it to malfunction or fail.

What happens when alternator fails?

A bad alternator will result in a discharged (dead) battery and cause a vehicle to not start or run. Alternators are designed to maintain a battery’s charge, not to recharge a dead battery. Your alternator’s job is to maintain a consistent charge on your battery. Draining your car’s battery is not advised.

How often should an alternator be replaced?

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 does it take for a new alternator to charge a battery?

The time it takes to charge the battery depends on the alternator’s size, the battery’s age, the temperature outside, and the electrical load on the car’s electrical system. A new alternator should typically charge after about 3 hours.

How many years does an alternator last?

How Long Does an Alternator Last? An alternator should last between 80,000 to 150,000 miles, which usually means around 7-10 years.

Is the alternator a generator?

An alternator is an electrical generator that converts mechanical energy to electrical energy in the form of alternating current. For reasons of cost and simplicity, most alternators use a rotating magnetic field with a stationary armature.

How can I test my alternator?

More videos on YouTube Get a multimeter. Set your multimeter to DCV (DC Volts) above 15. Make sure your alternator’s positive and negative terminals are clean. Put the multimeter’s black cable to the negative terminal and the red cable to the positive terminal. Look for an ideal alternator reading of around 12.6.