2000 kia sephia wont hold a charge alternator or battery?

Look in the fuel pump/filter area?

sound like dead battery,could have loose or broken alternator drive belt, if drive belt look okay,alternator could be faulty.

sound like dead battery,either alternator faulty or alternator drive belt could be loosen need adjusting or drive belt broken.

have you tried cleaning the batt terminals and make sure the plug on alt is in and the bolt that holds the one wire is tight in the alt

SOUND LIKE ALTERNATOR NOT CHARGING.CHECK FOR A LOOSE DRIVE BELT.IF DRIVE BELT GOOD AND ALTERNATOR FUSE GOOD AND WIRES NOT LOOSE AND DAMAGED PROBLEM IS FAULTY ALTERNATOR.

You might have a bigger electrical problem. One of your cables might be grounded this way allowing all flow of electricity to go to the chasis of the car, draining your battery. Check E.C.U. with mechanic

Good luck

i would take the belt off and then check the idler pulley assembly..it could be worn out..since the belt is off check the alternator pulley for any play also. A loose belt will not help the battery to keep a charge. if everything looks o.k. and you said you have a new battery and belt then it looks like your alternator went bad. Hope this helps.

check your alternator for proper charge, about 14.6 v

I would check ignition items or fuel delivery if it just died on you. It wont be the battery unless it was dead and the alternator stop working.

this is a simple troubleshooting issue....first go buy the mechanics manual from the auto store then go with the little stuff first try all your fuses battery cables and relays then flip your inertia switch and alternator maybe its not charging and the batteries dead if that doesnt work take it to them dirty guys with all those expensive tools but flip the inertia switch first sounds like an electrical problem