Question about 1999 Kia Sephia
I found this solution and will not take credit for it, I had the same problem. To change the spark plugs on a 2000 Kia Sephia, at least in a 1.8L version, first disconnect the battery, then, remove the black plastic cover on top of the motor. There should be 6 Phillips-head screws holding it down. After removing the plastic cover, you will see two rubber covers for the spark plug wires on each side, and two gel-looking insuated tubs attatched to more wires in the middle. To remove two of the spark plugs, you must carefully pull the rubber covers upward. They clip onto the spark plugs so you will need to use careful force to pull them out. Once you have them pulled out, you can look in and see the plug. It requires a 5/8 spark plug socket with an adapter to reach in. Make sure you push the socket on hard enough so that it clips onto the spark plug, other wise it will fall over and you wont be able to get it out without a LOT more work. Finish that plug by plugging the rubber covered spark plug wire back onto the spark plug, covering the hole. You can do the same thing for the plug on the opposite side. For the two in the middle, you need to first unbolt and remove the insulated boxes that cover the spark plug holes (you can unplug the white connectors but make sure you plug them back in when you are done). Then all you have to do is do the same thing you did with the two outer ones to replace the plugs. Perform this one plug at a time, and make sure you cover the holes with a cloth or paper towel if you leave them open for any period of time. When you finish, make sure all the wires are connected, then reconnect the battery.
Posted on Sep 17, 2010
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Posted on Jan 02, 2017
Tips for a great answer:
The spark plugs in the v6 can become an involved job as the upper intake manifold. The LS uses a Coil on Plug (COP) ignition system, meaning that the spark plugs are located under the ignition coil
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