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alternators

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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.
How Long Does an Alternator Belt Last?
Your car’s alternator is what delivers energy to your vehicle’s battery. It works by means of converting mechanical energy to electrical energy, taking power from the engine’s crankshaft and delivering it to...
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 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...
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 as to how the alternator works, knowing...
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 car’s electrical components. Essentially, it keeps the battery from losing...
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.
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.
Alternator or Car Battery: How to Tell Which Part Is the Problem
When you need to go somewhere and your car won’t start, it’s not unreasonable to think that you could have a car charging problem. A jump start might fix it in the short...
Can a Car Battery Overheat in Hot Weather?
If it’s hot outside, and you’re experiencing car battery problems, you may be wondering if it’s possible for your battery to overheat. The answer isn’t really a straight yes or no. Generally speaking, your...
How Does a Mechanic Check a Car Alternator's Volt Output?
Have you ever wondered how a mechanic checks your alternator? It’s not something that has to be done all that often, because usually alternators are maintenance-free, and they can last for up to 12 years without needing repairs....
How to Buy a Good Quality Alternator
The alternator is one of those parts that, when it malfunctions, can leave you high and dry by the side of the road. This essential component of your vehicle’s systems turns mechanical energy into electrical...

Related questions

Question
changed altenator, still no power going to battery
If the alternator is "new", and thus presumably good, the vehicle engine is running, the alternator drive belt is appropriately tightened, and yet you are not getting around 14.5 volts of charging current at the battery posts, that means there...
Question
Can I find out if my battery is dead using a trickle charger? What if I try and jump the vehicle with the battery being fully charged.
Hi there. Put on a pair of gloves and check the terminals of the battery and see if they are loose or tight. If they are tight, then put the key in the ignition switch and turn on the power...
Question
Charging System Not Working (Alternator is not kicking in)
The battery should be load tested by a professional. Load testing can only be reliably performed on a fully charged battery. If the battery passes a load test, you have to be sure it is NOT a marginal pass in...
Question
Changed alternator now car seems to be in creeper mode.
Hi there. If the engine is not accelerating after replacing the alternator, then check the alternator and see if its charging the battery. Look at the cables and make sure that they are hooked up correctly. If the alternator is...
Question
I have a Lexus motor in my 2000 Toyota avalon, would I need a Lexus alternator? Mine seems to be dead and my battery is weak..
Hi...if you changed motors and you are in need of a replacement alternator, by far the best strategy is to read the part number right off of your existing alternator, either now or once you get it removed. There will...
Question
For what reason is my car grinding and forcing itself to turn off at low RPM's?
Hi there. The battery could be low on a charge. Check the voltage of the battery and if it's lower than 12.4 volts it will need to charged or replaced. for the grinding noise that you are hearing, either the...
Question
altinater is fine but battery light keeps coming on what could be the problem? came on 7 times while on the road
The battery should be load tested by a professional. Load testing can only be reliably performed on a fully charged battery. If the battery passes a load test be sure it is NOT a marginal pass in which case you...
Question
Can my car drive 350 miles with this issue?
There are several possibilities for the issues you've described, but I would look more towards a belt being the issue. It could be the belt, belt tensioner, air conditioning compressor, the alternator, or one of the other belt driven accessories....
Question
About how much is it to fix an alternator on Rendezvous Buick?
Billing question sent to CS for the repair or replacement of the alternator on a 2002 Buick Rendezvous with a V6-3.4L engine.
Question
My 2002 Nissan Maxima has a noise when I start it. The sound keeps emitting while driving and it becomes louder especially when I turn left and right.
Hi there. The noise could be either the alternator making a noise as the inside bearing could be wearing out or the windings could be old and dirty making a whining sound or the noise could be the power steering...
Question
lights dim , radio shuts,down all rear lights come on in flashing mode when accelerating.
Hello, thank you for writing in. On your vehicle, there will be a "voltage regulator" located on the inside of the alternator. It will be controlled by the PCM. When dealing with the charging system it is important to have...
Question
Starting and shaking issues on a 2007 Honda accord.
Hi there. Check the alternator and see if it is making a full charge to the battery. If the vehicle is having a slow start when cranking, either the battery has lost a charge and is low or the starter...
Question
dead battery
Batteries can die if the lights are left on, the charging system is malfunctioning, or the battery is just plain "old", typically 5 years or more in age. What to do when you have a no start problem, caused by...
Question
My car keeps dying after a jump
The problem sounds like the alternator stopped charging. The battery being dead may have overloaded the alternator since they are designed to maintain the battery and run the accessories, not recharge a battery and run all the accessories. I would...
Question
My battery was tested and when I jump it the truck starts, take them off and it dies instantly.
If the car starts and runs with the use of a "jumper" battery, but stalls immediately when you remove that battery, that means your battery is dead and, as well, there could be something wrong with your charging system. Of...
Question
ALTERNATOR ISSUE?
The voltage put out by the alternator is typically in the range of 14.2 V to 14.5 V as measured right across the battery posts. If the charging voltage is outside that range, then there is a problem with the...
Question
Why do I need to charge my car's battery ever week or two but I cannot find an obvious problem withe the electronic system.
If you are starting the car and only operating it for a very short period, such short duration operation does not give the car's charging system sufficient time to re-charge the battery. Consequently, repeated short trips, especially in cold weather...
Question
Car won't start. Got a new battery. Still won't start. Lights came on once I turned ignition everything died out.
A dead alternator will not prevent the engine from starting. As long as the car battery is FULLY charged and not defective, the battery alone provides all of the power required for ignition and starting. However, a dead alternator will,...
Question
2015 Ford Edge charging system light come on ?
There may be a fault with the alternator and/or the battery. You can use a voltmeter to check charging system output at the battery posts. Output should be in the neighborhood of 14.5 volts but the actual specification will depend...
Question
Car will not start after replacing battery and alternator
The support bracket is a structural element and therefore must be installed to maintain proper alignment of the alternator. However, as far as its temporary omission being a possible cause of the no start, it has nothing to do with...

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