What Does a Bad Alternator Sound Like?
A bad alternator commonly makes a high-pitched whine, low growl, grinding sound, rhythmic chirp, or belt squeal that changes with engine speed. Worn bearings usually create growling or grinding, while a slipping belt or failing pulley produces squealing or chirping. Electrical faults can cause a smooth, siren-like whine. Key Facts at a Glance What Does […]