Webto test if your alternator is bad you will need to perform a test with either a voltmeter or a multimeter. If the voltage is low, charge your battery with a battery charger or jump. For an accurate measurement of your charging system’s voltage, attach.

Webyour alternator should be inspected and the belt should be replaced regularly as specified by the manufacturer. If no manufacturing defect is found,. Your napa autopro technician will test and install an alternator that meets your manufacturer’s specifications. If you use a multimeter you will need to set it at dc volts to measure the. Webhere are two tests you can also use to determine the route of your alternator repair:

Webhere are two tests you can also use to determine the route of your alternator repair: