How do you change spark plus in a 2000 mercury sable?

To change the spark plugs in a 2000 Mercury Sable, first, ensure the engine is cool and disconnect the negative battery cable. Remove the ignition coil by unscrewing it, then detach the electrical connector. Carefully pull out the old spark plug using a spark plug socket and ratchet, and replace it with a new one, tightening it to the manufacturer’s specification. Reattach the ignition coil and reconnect the battery cable.