Alternator issues

1997 DODGE DAKOTA
150,000 MILES • 5.2L • V8 • 4WD • AUTOMATIC
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TODD BEST
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  • 2 POSTS
Alternator is putting out 30 volts with comp connected or external regulator conversion installed the 140A fuse between alt. n batt is blown alt tested ok could it be because alt not connected to batt with fuse or what can cause this
Jan 2, 2016 at 6:24 AM
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HMAC300
  • CERTIFIED EXPERT
  • 48,601 POSTS
check for a sulfated battery causes that are you reading on ac or dc scale. you should never run car with out battery connected. it could be bad regulator have a pro scan for codes for a pcm problem as well.
Jan 2, 2016 at 9:44 AM
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TODD BEST
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  • 2 POSTS
Batt is connected fuse between alt n batt not comp is clear and of course im on dc batt tested good
Jan 2, 2016 at 11:09 AM
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HMAC300
  • CERTIFIED EXPERT
  • 48,601 POSTS
try a different battery you can't really tell if it's sulfated or not. otherwise it may be the external regulator you are talking about.there shold be a fusible link between battery connection and alternato as well. I don't understand this phrase... not comp is clear
Jan 2, 2016 at 11:47 AM