MY BATTERY LIGHT CAME ON BUT ALL ELECTRONICS ARE...

  • Tiny
  • Anonymous
  • 1994 Pontiac Sunbird
  • 118,000 miles

My battery light came on, but all electronics are working. Could it be the starter?

Monday, February 11th, 2013 AT 6:26 PM

1 Reply

  • Tiny
  • JDL
  • Expert
  • 16,289 posts

Does the starter motor crank? Cranking rpms ok? If so, I think your starter is ok. Id use a digital multimeter across battery posts, everything off, the generic spec for a full charge is around 12.6 volts. Leave leads hooked up to battery posts, have a helper turn key to crank, how far does the voltage reading drop? Shouldn't drop below 9.6 volts, generic spec.

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Monday, February 11th, 2013 AT 6:32 PM

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