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Lots of things can go wrong. The bearing that is belt driven can fail. It can over, or undercharge your system. The best check is to check it's running voltage - it should be between 13-14.5 volts. Anything less than 12.5 and it's not charging your battery.

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โˆ™ 2006-09-04 02:47:44
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Q: How do you know when the alternator is dead?
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How do you know when an alternator goes out on a Toyota Corolla?

the battery will not be recharged and will soon become inoperable or discharged {dead}


Will a dead alternator drain a battery?

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How do I know if if my car battery or alternator is dead?

Fully charge the battery Check with a voltmeter (should read approx. 12.8 volts without engine running) With engine running and good alternator reading should be 13.8-14.2 if the battery is dead the car wont start. replace the battery (preferably with a new one) run the car and if it dies or wont crank again its the alternator (or possibly the alternator belt is slipping)


Why will a batter not hold a charge when the alternator has been replaced?

Maybe the batter is dead or you got another bad alternator.


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If the alternator has no output then the vehicle's electrical requirements must be supplied by the battery, until dead. In addition, if the alternator quits, the alternator light, located in the instrument cluster, will illuminate


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

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