Join Date: Aug 2010
Location: Virginia Beach, VA
Drives: 2003 Kia Sedona EX
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fill out profile - location, car...
have you checked what is current drain from battery while not in use?
Also, when the lights start to dim/flicker - what is the voltage reading?
plug the multimeter set to V into anything (cigarettes lighter or so) and keep monitoring voltage.
as for the flickering thing - external lights or all of them (instrument cluster too?)
Alternator may be OK, but the voltage regulator may be bad. Sometimes this is buried in BCM so alternator replacement will not fix it.
On the other hand - if a new freshly charged battery does not hold radio for more than 20 minutes - you have some extra drain (short circuit somewhere...)
Wish we could help....BUT.... without you filling out your CP section of your profile you could be anywhere on this globe with a multitude of different versions of this model car.
You said you checked the "alternator ground" but did you check the ground wire from the battery to the body frame and the ground wire from the engine to the body frame? Depending on yr and model of sedona you may also have an "enable" wire (line) going to the alternator "jacK" mounted on it. If the enable line does not have 12~13.4 volts on it or if the connections feeding the alternator are corroded you will have the "battery" light on and there will be NO charging system running while the engine is on.
Please fill out your profile with a "general" location, year, model, engine size, type fuel used (gas/diesel) then we can help you with specifics.
good luck from another
"David Mc" in Ohio USA
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