The section covers batteries, serpentine belts and tensioners, alternators and starters and decoupler pulleys including OAP and OAD. Use our Starting & Charging Diagnostics eLearning Tool to run through intuitive, interactive diagnostics.
Starting & Charging
Most parts professionals categorize starters and alternators as “rotating electric.” Automotive technicians, on the other hand, generally categorize the starter and alternator as part of the starting/charging system. Since the designs of starting and generating systems have evolved during the past decade to include computer controls, the so-called “basics” of each operating system must be constantly revised…
Bad diodes are a common cause of alternator failure. The diodes are part of the rectifier assembly that converts the alternator’s AC output to DC. The alternator’s charging output flows through six diodes in the rectifier assembly before it goes to the battery and electrical system.