Where are the spark plugs located on a 2002 Kia Optima?

You will more than likely find, if it is a Kia motor, they are pretty much the same layout (pain in the behind). On top of the motor you will find a fancy but annoying plastic cover plate, Remove this cover plate and you will find 4 recessed holes down the centre of the block, which is where the plugs are located, you will need a long extension on your socket driver to reach them. Hope this helps.