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Will not start after I accidentally touch the alternator positive terminal to a metal portion of the alternator

Tiny
JORDAN PIERCE
  • MEMBER
  • 2003 NISSAN SENTRA
  • 1.8L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 309,000 MILES
Today I was trying to get rid of a squeaking belt on my car. I didn’t disconnect the battery before I started working. I know now that that is an issue. That being said I accidentally touch the alternator positive terminal to a metal portion of the alternator. It caused a spark. Now my car won’t start. No crank no clicking. What can I do now? Do I need a new alternator? Do I need a new positive wire?
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Tuesday, May 25th, 2021 AT 12:25 AM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 42,883 POSTS
There is a 120 amp fusible link which sounds like has blown out which is normal to protect the system. here is a alternator wiring diagram so you can see how the system works with the fusible location so you can check it out. (QR)

https://www.2carpros.com/articles/how-to-check-a-car-fuse

Check out the diagrams (below). Let us know what happens and please upload pictures or videos of the problem.
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Wednesday, May 26th, 2021 AT 10:02 AM

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