How do you change sparks plugs Ford E-250?

To change the spark plugs on a Ford E-250, first, ensure the engine is cool and disconnect the negative battery cable. Remove the ignition coils or spark plug wires, noting their order for reinstallation. Use a spark plug socket and ratchet to carefully remove the old spark plugs, and then insert the new plugs, ensuring they are properly gapped. Finally, reconnect the ignition coils or wires and the battery cable.