Why is the alternator light on in your 2002 Kia Sedona?

Answer 1

The charging system is not producing enough amps as required. Which means either the battery or alternator needs to be replaced.

The 2002 & 2003 has problem with their alternator, the pully of the alternator is too big so the rpm is not fast enough to charge the battery, especially if you drive a lot, or local street only. I think since 2004, they change to a alternator with smaller pully. If you plan to replace it yourself, make sure you search online before you start. you have to get all parts before you start, a new alternator (most likely with smaller pully), that mean you'll need a shorter belt. When i bought it, it wasn't in stock. The long bolt that hold the alternator is not easy to remove, you will need to jack up the engine to certain degree to remove the bolt, you will need to remove the radiator, hoses, clip for hoses, engine cover, engine mount. MFG will remove the AC line but I was able to remove the alternator without remove the AC line so i can save lot of money for freon. Prepare to spend a whole day or possibly 2 days or move depend how handy you are.