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After replacing the alternator there is no electricity to the car

Tiny
SLIDYMK2
  • MEMBER
  • 1983 TOYOTA SUPRA
  • 6 CYL
  • 2WD
  • MANUAL
  • 200,000 MILES
I had my alternator go out and changed it, yes I was sure the alternator was the issue, so I changed it. I made sure to connect everything correctly and now there’s no electricity to the car. I found a wire that runs from the same grouping as the alternator that isn’t connected to anything and I can’t find its home.
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Friday, July 17th, 2020 AT 10:51 PM

17 Replies

Tiny
ASEMASTER6371
  • MECHANIC
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Good morning,

Can you upload a video or pictures of the wire that is hanging free? I attached a diagram for you to view.

Do you have power to the alternator from the battery?

https://www.2carpros.com/articles/everything-goes-dead-when-engine-is-cranked

https://www.2carpros.com/articles/how-to-check-wiring

Roy
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Saturday, July 18th, 2020 AT 4:53 AM
Tiny
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I can send a couple pictures and video if you need.
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Saturday, July 18th, 2020 AT 1:35 PM
Tiny
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This is the wire end:
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Saturday, July 18th, 2020 AT 1:36 PM
Tiny
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This it where it splits off from the alternator.
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Saturday, July 18th, 2020 AT 1:41 PM
Tiny
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Or at least from the same wires as the alternator.
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Saturday, July 18th, 2020 AT 1:41 PM
Tiny
ASEMASTER6371
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Is the yellow cut back by the alternator? It looks like the wire is cut.

Roy
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Saturday, July 18th, 2020 AT 3:53 PM
Tiny
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No all the wires to the alternator are connected and in tact.
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Saturday, July 18th, 2020 AT 7:53 PM
Tiny
ASEMASTER6371
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Is that a used alternator or did you not change out yet?

Do you have power to the alternator wire from the battery? You need 3 wires with power to the alternator. Can you verify that?

Roy
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Sunday, July 19th, 2020 AT 3:49 AM
Tiny
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I only believe I have 2 the harness and the ground. I can send more pictures too.
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Monday, July 20th, 2020 AT 6:06 PM
Tiny
ASEMASTER6371
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Please send as many as you can. The diagrams I have are generic and I would like to see what you see.

Roy
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Monday, July 20th, 2020 AT 6:09 PM
Tiny
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Could you possibly tell me what part this is?
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Friday, July 24th, 2020 AT 5:18 PM
Tiny
ASEMASTER6371
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Please start a new question on a different issue.

Roy
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Saturday, July 25th, 2020 AT 3:14 AM
Tiny
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It’s still the same issue, I was told to try replacing it I just can’t remember the name.
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Saturday, July 25th, 2020 AT 3:16 PM
Tiny
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That is the wiper motor and has nothing to do with the alternator.

Roy
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Saturday, July 25th, 2020 AT 3:42 PM
Tiny
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You say that, but after fixed a wire on there I started the car today.
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Monday, July 27th, 2020 AT 1:48 PM
Tiny
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My friend that helped me thinks the wire that was off was arcing on the car
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Monday, July 27th, 2020 AT 3:12 PM
Tiny
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Then check the fuse block for a high amp fuse. Test it on both sides with a test light.

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

Roy
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Monday, July 27th, 2020 AT 3:20 PM

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