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alternators

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How to Adjust an Alternator Bracket
Alternator bracket replacement typically means an entire alternator belt replacement in modern cars.
How Long Does an Alternator Last?
Your alternator is a vital component in your car. It recharges your battery, using engine power, and it also delivers power to your...
Can a Car Battery Overheat in Hot Weather?
Hot weather can cause battery fluid to evaporate and make it hard to start your car. Battery overcharging decreases the lifespan of your battery.
Can a Car Battery Overheat in Hot Weather?
Hot weather can cause battery fluid to evaporate and make it hard to start your car. Battery overcharging decreases the lifespan of your battery.
A Mechanic's Guide to the Parts of a Car
Modern cars have many different parts and features, including catalytic converters, anti-lock brakes, four-wheel drive, and keyless ignition.
How the Alternator Works in Your Car
Your Your car alternator, at its most basic, is what works along with your battery and the rest of your charging system to keep your car running. When you start your car, you’re running on battery power. Then the battery...
How the Alternator Works in Your Car
Your Your car alternator, at its most basic, is what works along with your battery and the rest of your charging system to keep your car running. When you start your car, you’re running on battery power. Then the battery...
How the Alternator Works in Your Car
Your Your car alternator, at its most basic, is what works along with your battery and the rest of your charging system to keep your car running. When you start your car, you’re running on battery power. Then the battery...
How the Alternator Works in Your Car
Your Your car alternator, at its most basic, is what works along with your battery and the rest of your charging system to keep your car running. When you start your car, you’re running on battery power. Then the battery...
How the Alternator Works in Your Car
Your Your car alternator, at its most basic, is what works along with your battery and the rest of your charging system to keep your car running. When you start your car, you’re running on battery power. Then the battery...
How to Test Your Alternator
Having your alternator fail can leave you stranded on the side of the road. Though it is not necessary to know every aspect...
What Does the Alternator Warning Light (Battery Warning Light) Mean?
The alternator warning light means there is an issue with powering the battery. This could be due to the alternator becoming worn out.
Can a Car Battery Overheat in Hot Weather?
Hot weather can cause battery fluid to evaporate and make it hard to start your car. Battery overcharging decreases the lifespan of your battery.
Symptoms of a Bad or Failing Alternator
Common signs include having to jump start the car frequently, dim lights when operating the vehicle, or the Battery Light coming on.
Symptoms of a Bad or Failing Alternator Belt
A failing alternator belt can cause the Battery Light to turn on, dimming or flickering lights in the car, and engine stalls.
How the Alternator Works in Your Car
Your Your car alternator, at its most basic, is what works along with your battery and the rest of your charging system to keep your car running. When you start your car, you’re running on battery power. Then the battery...
How the Alternator Works in Your Car
Your Your car alternator, at its most basic, is what works along with your battery and the rest of your charging system to keep your car running. When you start your car, you’re running on battery power. Then the battery...
How the Alternator Works in Your Car
Your Your car alternator, at its most basic, is what works along with your battery and the rest of your charging system to keep your car running. When you start your car, you’re running on battery power. Then the battery...
How the Alternator Works in Your Car
Your Your car alternator, at its most basic, is what works along with your battery and the rest of your charging system to keep your car running. When you start your car, you’re running on battery power. Then the battery...
How the Alternator Works in Your Car
Your Your car alternator, at its most basic, is what works along with your battery and the rest of your charging system to keep your car running. When you start your car, you’re running on battery power. Then the battery...

Related questions

Won't stay running

Hello and thank you for your question. It seems to be the transmission that is causing the engine to stall out when you are putting the vehicle into drive. The transmission could have a converter clutch lock up issue causing...

Whining noise coming from car

This may be potentially related to a failing alternator (https://www.yourmechanic.com/services/alternator-replacement) as these are known for making a whining sound when they are beginning to fail. When this happens, you may also notice your battery light (https://www.yourmechanic.com/services/battery-light-is-on-inspection) to come on or...

Trouble starting car

Engine stalls are often caused by a malfunctioning sensor if not lack of fueling or ignition system maintenance. A trained technician will take them all into consideration. Worn spark plugs may cause a stall on their last leg and prove...

Steering wheel locked

There is a pin that locks the steering wheel when the key is turned off. If you turn off the key and you have pressure on that pin from the wheel, the ignition will be very hard to turn. Try...

Shut down while driving

Hello, thank you for writing in. It certainly sounds like the vehicle is losing electrical power, which is an almost definite sign that the alternator has failed. It is solely responsible for providing electrical power to the vehicle while driving....

Possible dead battery

Hello. The battery light turning on when the engine is running indicates that system voltage is low. Everything required to run the engine, and everything in the car, will drain the battery. Most likely, it is the alternator, but the...

No power to car

Your alternator (https://www.yourmechanic.com/services/alternator-replacement) and battery (https://www.yourmechanic.com/services/battery-replacement) may be the cause of this problem. You should have the battery completely charged and load tested (https://www.yourmechanic.com/article/how-to-check-a-car-battery) first. If it fails testing, then replace it then test the charging system. When the battery...

My truck turns over but won't start.

Start with also checking things like cam position sensor (https://www.yourmechanic.com/services/camshaft-position-sensor-replacement) and crank position sensors (https://www.yourmechanic.com/services/crankshaft-position-sensor-replacement). These are two components that will cause a no spark problem as they are both partially responsible for monitoring the speed of both the crank...

My car will not start without a jump

This sounds like your alternator (https://www.yourmechanic.com/services/alternator-replacement) is going out. It maybe outputting just enough power to allow the car to run once you get it started, but it isn't putting out enough power to recharge your battery. Either way, you...

My car keeps shutting off

Hi there. From the description you have given, the charging system needs to be inspected. First, the battery needs to be charged (https://www.yourmechanic.com/article/how-to-recharge-a-car-battery) and load-tested. Assuming the battery tests good. The battery terminals are clean and tight (https://www.yourmechanic.com/article/how-to-clean-battery-terminal-connections-on-a-car). From what...

why is battery and brake light on?

Hello, thank you for writing in. The battery light and brake light often illuminate together when your alternator has failed. You can verify this easily by scanning for diagnostic codes. These are codes that pertain to the warning lights, and...

Truck won't stay running

One of the hardest problems to diagnose are electrical gremlins. Without being there to physically inspect your 97 Dodge Ram pickup, it's hard to give you a perfect diagnosis. However, when the battery and alternator are good, I tend to...

The car has no electrical power at all

Hi. I would recommend to have a technician check for any loose power or ground wiring. There also could be some corrosion present that is blocking the electrical current flow. I also recommend that the technician use a test light to...

Something draining the battery

If it ran for 30 minutes after a jump, the alternator is probably ok. I would start by checking the battery first. Alternators are not designed to charge a dead battery. A good battery, that is completely dead, takes more...

Problems starting car

Hello. It sounds like the key or the ignition switch could be having contact issues. There are contacts inside the ignition switch. To eliminate a worn key resistor, try another key and see if you have the same result. If...

No power when accelerating

Hello! I believe the problem is likely to do with the mass air flow sensor (https://www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-mass-airflow-sensor). When this sensor is at fault it will be sending a regular error inlet reading which will cause computer to incorrectly apply air fuel...

No power at all

Check the voltage at the battery terminals for 12 volts at rest. While cranking the voltage shouldn't drop very much, about 10 volts. Jump the vehicle and observe the voltage while it's running. If the voltage isn't above 13.5 volts,...

My car will start, just not run.

Hi, thanks for writing in. I would start with testing your battery and alternator with a multi meter. Good batteries (https://www.yourmechanic.com/article/how-to-buy-a-good-quality-car-battery) hold a charge of 12.6 volts or higher. If the battery is low, try to jump start it. If...

My car shut down while driving and won't start

If you lost power steering and then lost power to the engine you may have broken the alternator and power steering belt. Your charging system light (https://www.yourmechanic.com/services/battery-light-is-on-inspection) should of come on before the battery went dead. (https://www.yourmechanic.com/services/battery-is-dead-inspection) You should first...

My car died while driving it

In this case, it sounds like your battery (https://www.yourmechanic.com/services/battery-replacement) or alternator (https://www.yourmechanic.com/services/alternator-replacement) is failing. If you'd like to get this fixed, certified technician, like one from YourMechanic, will be able to diagnose your stalling issue (https://www.yourmechanic.com/services/car-is-stalling-inspection) to determine the exact...

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