Where does the black wire with the red stripe go to- positive or negative?

1989 GMC C1500
300,000 MILES
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JYNXX15
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  • 6 POSTS
Recently bought this truck. Battery & cable have been getting increasingly corroded. I took them off to clean them both. A wire slid off, but I didn't notice it at the time. I think it goes to the negitive side, but just want to be sure. Either way the truck won't crank now. Both neg & positive have 2 extra wires coming off the connector. I've never encountered this set up before. I'm lost.

Thanks!
Sep 3, 2011 at 1:41 AM
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RASMATAZ
  • ✓ASE Certified Mechanic
  • 75,992 POSTS
  • ASE Certified Mechanic
One cable on the battery will go straight to the starter motor which is gonna be the positive cable on the battery positive post. Maybe the black w/red striped goes to the battery terminal of the alternator verify this-
Sep 3, 2011 at 11:06 AM
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