Disconnecting the battery while the engine is running isn't a valid test for alternator function and may damage sensitive electronic parts. Instead, use a common voltmeter and the following test ...

Prior to 1969, most GM cars used an alternator with an external regulator. While they were good in their day, most early-model alternator cores have been recycled through rebuilders several times, and ...

Production cars began using alternators in the 1960s. As part of the electrical system, alternators made it possible for cars to use higher voltage, and led the way to the modern car charging system.

General Motors has issued an immediate stoppage on the production and sale of around 5000 heavy duty Chevrolet Express and GMC Savana vans as a result of a faulty alternator, the automaker announced ...