How Do I Know If My Alternator Is Faulty. If an alternator is giving a low charge it will but a load on the engine trying to ineffectually charge a battery and the battery will slowly die as the alternator gets weaker. A hack that could help you decipher if a faulty alternator is really the issue is to turn your radio on the AM frequency and find a low dial without music.
Dim or Flickering lights. If the headlights flicker dim or get brighter when the accelerator is pressed down your alternator may be bad. As described above a.
Trouble Starting or Frequent Stalling.
Trouble Starting or Frequent Stalling. If an alternator is giving a low charge it will but a load on the engine trying to ineffectually charge a battery and the battery will slowly die as the alternator gets weaker. Nearly any auto parts store will test your battery for free to see if it holds a charge. But you can perform a basic charging system output test using a digital multimeter set to DC volts at home.
