Noisy Whining Alternator

This alternator on a Toyota, came in with the owner complaining of a whine under the hood. The whine would stop and start as I unplugged and plugged the alternator. The cause of the whine is a bad diode in the alternator. I've seen some of these whine for several weeks before failing completely.

• #autos_vehicles
• #alternator_invention
• #automobile_tv_genre
• #tcat
• #automotive_technology
• #livingston
• #tcat_automotive_technology
• #tennessee_college_of_applied_technology
• #automotive
• #auto
• #car
• #mechnaics
• #car_problems
• #alternator_noise
• #alternator_whine
• #whining