Showing articles & questions for topic
alternators

Related articles

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....
How Long Does an Alternator Last?
Your alternator is a vital component in your car. It recharges your battery, using engine power, and...
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?
Hot weather can cause battery fluid to evaporate and make it hard to start your car. Battery overcharging decreases the lifespan of your battery.
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
Battery light is on after a new battery
Hello, thank you for writing in. The vehicle may be having issues with the alternator or with the charging system's electrical wiring. Start by making sure all of your battery terminals, ground connections, wires to the alternator, and wires to...
Question
New radiator, which was installed incorrectly and overheated my car. Now my alternator is going out could this be related?
Overheating can damage many engine components such as the thermostat, crankshaft position sensor, and so forth. Overheating does damage alternators but the overheating in alternators is typically caused by electrical overloads, that is too much current flowing through the alternator....
Question
Car dies while driving
Hello, thank you for writing in. The vehicle can stall for many reasons. You are going to want to start with the most common causes, or do some further testing. To start, the fuel pump may be going out and...
Question
Idk
Hello, thank you for writing in. When a vehicle has alternator issues, the entire car is forced to run off of the battery. As you can imagine, this stresses out the battery and can cause it to prematurely fail. Start...
Question
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...
Question
Car won't stay charged for some reason
Claimed by Jeff Engstrom
Question
I have a 2009 Scion xB and replaced the alternator. The engine is slightly shaking drove it around and the car was turning off on
Hello, thank you for writing in. As to the alternator wires, we cannot determine if they are connected correctly without an inspection. A weak electrical supply would cause the engine to run poorly. The air conditioner may or may not...
Question
My Honda 2009 just got a new battery and new alternator 2 weeks ago. Now car starts but then shuts off in 10 seconds.
If the alternator is not a factory new or remanufactured then you may have an alternator that is not communicating with the computer and needs computer scan to check it and replace alternator with new one that is compatible with...
Question
Having problems removing the long bolt in bottom of alternator. I took off the nut and tapped it out til it hit inner fender. 2007 Hyundai Elantra
Hi there. In order to get that bolt out the engine will need to be lifted in order to get clearance. If you do not lift it then it will not come out. You should get some help from a...
Question
I recently got a new battery and starter with in a month for my 2006 bmw 330i. Now the car won't start and key buttons won't work.
Hello, thank you for writing in. To remove the key from the ignition, you are going to want to disconnect the battery. The electronic sensors that register you are in park and allow the key to come out are not...
Question
Will a faulty alternator effect the transmission?
If you have a faulty alternator and the vehicle battery gets low on voltage then the computer may not shift the transmission gears correctly and cause other drive symptoms like stalling or surges and rough shifts. Engine and transmission may...
Question
no high beams
You should first have the charging system checked to make sure it is not overcharging since these alternators are known to have this problem. If an overvoltage condition is present it could have blown the high beam circuit inside bulb....
Question
Is There a video showing how to do this
Hello, we do not have repair videos available at this time. We do offer the service to come out and replace the alternator for you, and you can find out more about that here. Otherwise, look to the internet and...
Question
Can't get alternator back on after taken it off my Acura 1999 3.2 tl
On some alternators there is a bolt hole that has a small slide sleeve that needs to be tapped lightly to open the top bolt hole spacing more open to get alternator back on. If you still have an issue...
Question
My 96 Ford Taurus alternator and battery tested good but battery won't stay charged
Hello. If the alternator is testing good then you probably have a failure in the control circuit for the alternator. This can be a fuse, wiring or it can be the computer. I usually need to test the circuit with...
Question
I have a vehicle where the battery is brand new, I had it tested, whereas the battery is putting out 11.9 volts. But when I go to
You are likely having issues with your charging system. Considering you have a new battery, your alternator may be to blame. Keep in mind, that the symptoms you are having are more commonly seen with battery failure. For this reason,...
Question
My 2011 chevy Cruze keeps saying check battery charging system and the battery and alternator are both completely fine. Any ideas?
Hello, thank you for writing in. If you are not able to find any faults with the battery or the alternator, you are going to want to focus on their wires and connections. Make sure all of the wires are...
Question
I have a GS Lexus 400 1994 alternator needs be replaced but GS 400 not pulling up need a quote on fixing
Hello, thank you for writing in. The submodel you are looking for may not be on our website at this time. There are a couple of options from here. One, you can use a similar submodel to get an idea...
Question
So I bought my wife a 2016 malabu and out of no where the battery saver light came could it be the same as the cruz
Hello, thanks for writing in. Both the battery and the alternator may be at fault. The light turns on any time low voltage is detected. That being said, both are easy enough to test. Most automotive parts stores will test...
Question
My ford f 150 want turn over changed battery
Hello. There may be one of several issues wrong. When having starting and running issues, always verify that the alternator and battery are working perfectly first. Make sure the battery cables and grounds are clean, dry, and tight. From there,...

Need a mechanic?

Our certified mobile mechanics make house calls in over 700 U.S. cities. Fast, free online quotes for your car repair.

Get a quote

Post a question and get free advice from our certified mechanics.


Ask a question