Alternator and Starter Check

1. Disconnect the batteries.
2. Check the tightness of the alternator bracket fasteners; tighten the fasteners as needed. See  for torque specifications.
3. Check the tension of the alternator belt. See  for belt tension instructions. Some engines are equipped with dual alternator belts. Always check both belts for correct tension. Engines equipped with a serpentine or poly-V belt have automatic belt tensioners and do not require belt tension inspection.
4. Check that all electrical connections at the alternator and starter are clean. Clean and tighten all charging system electrical connections as needed.
5. Check the alternator wiring for missing insulation, kinks, and heat damage. Replace or repair as needed.