Process for Knowing If There is a Problem With Your Alternator
Experiencing car trouble can be a really big headache for someone that is not a mechanic. There are some minor things that you should check before consulting a mechanic. It is highly recommended that you determine if the problem is with your alternator.
Process for Knowing If There is a Problem With Your Alternator
Use a digital multi-reader (voltmeter) to test the alternator. Attach the multi-reader to the battery of the car. A voltmeter is fairly inexpensive and can be purchased at most automotive parts stores, such as Pepboys or O'Reilly Auto Parts.
After securing the multi-reader to the battery, start the engine. Turn on all of the electrical accessories in the car, such as the radio and air conditioner.
Check the reading on the voltmeter while the engine is running. If the voltmeter is showing a reading of at least 12.75 volts, the problem is not with the alternator. If the voltmeter is reading below 12.75, the problem is definitely with your alternator.