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Blowing alternator fuses

Tiny
AERICKSON
  • MEMBER
  • PONTIAC GRAND PRIX
I have a 1994 grand prix with 145000 miles, v6 That keeps blowing alternator fuses. I have taken the alternator and had it bench checked and it is ok.
i have checked the wires to the fuse block could find no problems. Don't want to have to take the alt back out but I am out of ideas. Please help if you can.
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Sunday, September 30th, 2007 AT 10:44 AM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Its probably overcharging the system-regulator not controlling the field circuit or computer is not telling the regulator to increase the field winding to drop the voltage.

Test the regulator ground connection.
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Tuesday, October 2nd, 2007 AT 5:12 PM

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