2008 Kia Spectra Brake Light Battery On Dash Flickers Off Been Replaced

2008 KIA SPECTRA
160,000 MILES
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The brake light and battery light on the dash flickers on and off. The battery has been replaced and the connections have been cleaned, the alternator has been checked to verify that it is charging.
Mar 17, 2013 at 12:56 AM
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CARADIODOC
  • ✓ASE Certified Mechanic
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Need specific numbers to evaluate the charging system. Start by measuring the battery voltage with the engine running. It must be between 13.75 and 14.75 volts. If it is, or if it's even a little high, have the charging system professionally load-tested. If all the generator can produce is exactly one third of its rated output current and "ripple" is very high, it has a defective diode.
Mar 17, 2013 at 1:04 AM
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