answersLogoWhite

0

Use a vom meter, or battery tester and with the engine running voltage should be approximately 14.5 volts.

User Avatar

Wiki User

15y ago

What else can I help you with?

Related Questions

How do you tell if your alternator is done?

The alternator is here to give power to / recharge the battery while the engine is running. the alternator, when wired correctly isn't charging with the engine running, then you can tell it is not working anymore. how to know : ideally you'll need a volt meter to controle voltage on the battery +/- plug while engine is doing ~1200rev. bit more elaborated : follow the + cable from the battery to the alternator connection, then with the engine running mesure voltage between the alternator connection and any negative ( - ) spot that you are 100% sure of (i.e. the head of a bolt screw onto the car) a good alternator will give you a reading around 14 for a 12V system (most popular) What happen when the alternator is not working properly : Your battery keeps on diying.


How do you tell if it's the alternator or battery?

Have a shop load test the battery.


Where is the fusible link for the alternator charging system on a 1990 mercury cougar?

I can tell you that on a 2000 mercury cougar it is a fuse on the positive cable between the battery and the alternator


How do you tell if the alternator is outon a 1999 kia spehia?

A quick way to tell if there might be a problem with an alternator is to remove the positive side battery cable from the battery while the vehicle is idling. If the engine dies, odds are there is an alternator problem.


How can tell if the battery is bad or the alternator?

Take the battery to a parts store so they can test it.... Actually you need to test both the battery and the alternator because if your alternator is not functioning correctly it can drain the battery of power... so just testing the battery may only tell you that you have a drained battery and not reveal the cause... This testing can be done using an Auto meter which tests the battery and also does an alternator load test...If you do not have a tester you can rent one from an auto parts store,or you can remove the alternator and take it to the auto parts store and have it bench tested along with the battery...usually for free...


How do you tell my alternator is faulty 2006 impala?

An alternator keeps the battery charged in a vehicle. In a 2006 Chevrolet Impala when the alternator fails the battery will keep dying and no power will be available when attempting to start the car.


Battery KEEPS draining?

Need more info... How old is it? Do you drive short distances? Does it sit around not driven a lot? Check for a short, bad alternator, or fried battery. If you take the car to an alternator shop, they can usually tell you for free if it's the battery or the alternator.


How do you tell if your alternator is bad in your 1996 dodge neon?

you could pull off your positive battery cable if it stalls out then you alternator is the problem


How can you tell the alternator is going out on a 1994 ford explorer sport?

the battery will not charge properly


How do you tell if your car battery is finished?

Have it load tested by a shop, most parts stores will load test your battery and alternator for free.


How do you tell if the battery is dead in the Chrysler sebring jxi or if it's the alternator?

if the battery is dead, there will be no ignition lights etc when u turn the key your headlights would be very dim if on at all. the alternator only works when engine is running, so if alternator is dead it will not charge the battery most auto stores will check both battery and alternator for free if you remove from car and take them to the store


How do you repair the problem if car battery is not charging properly?

take the car to a repair shop and have them put a battery tester on it. it may be the alternator or the battery the tester will tell