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Arcing and smoking at the negative battery terminal?

Tiny
ELDUANEDE
  • MEMBER
  • 2007 PONTIAC GRAND PRIX
  • 3.8L
  • V6
  • TURBO
  • 2WD
  • AUTOMATIC
  • 165,000 MILES
Replaced the starter solenoid then connected the negative terminal last. Ignition was then turned on and got one click and shut the ignition off. Checked under the hood and the negative terminal was smoking, removed neg cable off and it arc welded, touched negative again and still arcs and sparks.
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Thursday, December 5th, 2024 AT 9:45 AM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,363 POSTS
It sounds like the starter wiring is not correct or touching the block or ground somehow. If you can upload an image if the starter solenoid wiring, I can check it out for you, also it could be a defective starter motor. Here is the correct way to install the starter in case you need it. Check out the images (below). Please upload pictures or videos in your response of any problems so we can see what to help you with.
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Thursday, December 5th, 2024 AT 2:54 PM

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