Question about 2004 Kia Optima

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Have replaced alternator and battery as they both went bad. The new alternator is putting out 14 volts when tested. When in the car and the air and lights are on it drops below 12v. Put in two new alternators until we realized that there is something else wrong. But what?

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I suggest that you drive it to an auto parts store that checks your charging system for free, advanced auto auto zone etc.etc.,there testers give the most acurate readings .as you turn on a/c light the voltage will drop from 14 from my limited knowledge on electical i think at an idle its okay as long as the voltage stays above 9.6 while under load for 15 seconds .but those guys there know the right stuff

Posted on Aug 08, 2010

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Posted on Jan 02, 2017

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