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Why are batteries not charging with new alternator installed…

Customer Question
why are batteries not charging...
why are batteries not charging with new alternator installed 1999 ford 7.3 diesel F350
Submitted: 2 years ago.Category: Ford
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Answered in 7 minutes by:
3/5/2016
Ford Mechanic: Juan Crespo, Tech Trainer replied 2 years ago
Juan Crespo
Juan Crespo, Tech Trainer
Category: Ford
Satisfied Customers: 1,532
Experience: A.S.E. Master Technician, Advanced Level, Emissions - Asian, Domestic, & European
Verified

Well, actually, the batteries don't do the charging, the alternator does. I can probably help you but first I'll need some information:

  • Were the batteries charged and load-tested before the new alternator was installed?
  • Was the charging system checked for volts and amps to determine what was causing the problem?
  • Are you thinking of repairing this issue yourself? If yes, do you have a volt and amp meter capable of reading up to 120 amps?
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Juan Crespo
Juan Crespo
Juan Crespo, Tech Trainer
Category: Ford
Satisfied Customers: 1,532
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