Your car runs fine but when you stop at the light it feels like it is about to die It never does Can anyone tell you what the problem is?

1. How do you check if it's your battery or alternator?
2. Can AutoZone check my alternator?
3. How does a car act when the battery is going bad?
4. What does dead car battery sound like?
5. What can drain a car battery when the car is off?
6. What sound does a bad alternator make?
7. How much does it cost for an alternator?
8. How can I test my car battery at home?
9. Can a car battery go dead from sitting?
10. Why does my car battery died after sitting for a few days?

How do you check if it's your battery or alternator?

If your engine won't turn over or takes far longer than usual, it's time to grab the jumper cables and attempt a jump-start. If your engine starts and stays running but won't start again later, it's likely a battery problem. If your vehicle immediately stalls, it's probably a bad alternator.

Can AutoZone check my alternator?

Every AutoZone in the USA will check your alternator, starter, or battery at no charge.

How does a car act when the battery is going bad?

If the engine cranking sounds sluggish you likely have a bad battery. If you've noticed the progression of your car turning over more and more especially on cold mornings, or just inconsistent starts then your issue is usually your battery needing replacing. Other symptoms include no interior lights and no sound.

What does dead car battery sound like?

A clicking sound when you turn the key, instead of engine ignition, is a common sign that your battery is weak or dead. The clicking sound comes from the starter motor; it usually indicates that the battery does not have enough power to start the engine.

What can drain a car battery when the car is off?

Even while your car is off, your battery provides power to things like the clock, the radio, and the alarm system. ... What may drain a car battery when it's off are things such as interior lights, door lights, or even bad relays.

What sound does a bad alternator make?

A common sound made by failing alternators is a very high pitched whining noise that you'll hear when the engine is running. When the RMPs increase, such as when you accelerate, you'll hear the noise get higher in pitch as the pulley spins faster.

How much does it cost for an alternator?

When your car starts having electrical problems, it's a sign you need an alternator replacement. Considering the price of a new alternator as well as labor, you should expect to spend anywhere between $500 and $1,000 to get a new one for your vehicle.

How can I test my car battery at home?

Watch the brightness of your headlights. If your headlights dim noticeably as the engine turns over, your battery doesn't pass the load test. The battery should hold enough charge to handle the 10-15 minutes before the engine starts, and once the engine turns over.

Can a car battery go dead from sitting?

The battery in your car can die within as little as two weeks when unused. When the car isn't regularly being used, the battery doesn't have a chance to recharge, leading to a dead battery. ...

Why does my car battery died after sitting for a few days?

As mentioned above, there are many components in your car—like clocks, computers and security alarms—that continue to draw power from your vehicle when it is turned off. This is called key-off battery drain or parasitic drain, and it could cause you to wind up with a dead battery after multiple weeks with no driving.