How to Tell If Alternator Is Going Bad?

Answer

After starting the vehicle and running, the positive cable is disconnected from the battery, if the engine dies or slows down the alternator is bad or going bad. Battery is there to start the engine, then alternator / generator takes over the electrical system of a car. If the alternator is good, idling of engine will not slow down even the battery is disconnected.
2 Additional Answers
One way to determine that an alternator is going bad would be to check the voltage at the battery terminals. Target healthy range with engine running and no major power draws is between 13.6 and 14.1 volts. Anything lower than this could be indicative of an alternator problem.
Since the alternator is the generator for a car, it is important to keep it in good shape and to give it proper maintenance. Listen to your engine for any unusual noises. Also, keep an eye on your battery light turning on, since this can indicate a problem with your alternator.
Q&A Related to "How to Tell If Alternator Is Going Bad"
One way to tell if your alternator is going bad is to start your car and then unhook the battery cables. If the car remains running then your alternator is fine. If it stalls it going
http://answers.ask.com/Vehicles/Autos/how_to_tell_...
1. Keep an eye on your "battery" or "alternator" light. This light should show up on your dashboard when you start the car (if it doesn't, it may be burned out
http://www.ehow.com/how_4827772_tell-alternator-go...
Most people would take the vehicle to a mechanic to have it checked. A cheap way to tell if it is charging is to remove the positive battery cable from the battery while the engine
http://wiki.answers.com/Q/How_do_you_tell_if_alter...
1 Get your eyes tested regularly by an ophthalmologist or optometrist . Once a year is standard. If any of the following are a problem, you may wish to schedule an appointment sooner
http://www.wikihow.com/Know-if-Your-Eyes-Are-Going...
Explore this Topic
One way to tell if your alternator is going bad is to start your car and then unhook the battery cables. If the car remains running then your alternator is fine. ...
One way to tell if your alternator is going bad is to start your car and then unhook the battery cables. If the car remains running then your alternator is fine. ...
One way to tell if your alternator is going bad is to start your car and then unhook the battery cables. If the car remains running then your alternator is fine. ...
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