What Are Signs of a Bad Voltage Regulator?

By Staff WriterLast Updated Apr 7, 2020 2:57:17 AM ET

Warning lights, unpredictable engine performance and dimming or pulsating lights are all signs of a faulty voltage regulator. A number of symptoms can develop if the voltage regulator fails to deliver sufficient voltage. Warning lights may not inform the operator of such a failure until it is too late, so it is important to be aware of the associated issues.