How To Test Internal Voltage Regulator On Alternator

Signs of a bad voltage regulator in a vehicle include dimming or pulsing lights or a dead battery.

How to test internal voltage regulator on alternator.

A good alternator should maintain battery voltage between 13 9 and 14 8 volts 14 2 is optimum. A voltage regulator will limit the maximum amount of voltage from a power source and prevents a device or alternator from shorting and overheating. Greeny on february 16 2017. You may want to take the alternator to a local auto parts store to get tested.

Tools used in the video volt meter. A voltage regulator controls the alternator voltage output to maintain a preset charging voltage for the battery. Alternator failure voltage regulator stator problems slip rings worn out etc but make also sure your battery still can take the charge check the alternator belt. Voltage regulators are commonly found in vehicles and other electronic equipment.

If you have electrical equipment that won t turn on that could. Without a regulator the battery would receive upwards of 30 volts of power while charging which would quickly damage or destroy your battery. This is enough to destroy the car s battery and electrical system. 01 test voltage across the battery terminals with the engine running.

It also controls electrical power to the vehicle s different electrical systems. The voltage regulator is built into the alternator on all chevys made from the 1980s to at least 2010. There can be many reasons for a lack of charge. Simply put the regulator restricts the amount of voltage being sent to the battery.