Here is a step-by-step tutorial on how to replace spark plugs:
1. Park your vehicle on a flat, dry surface and ensure the engine is cool.
2. Remove any interference items.
3. Remove the spark plug wire.
4. Remove the coil on plug (COP).
5. Unscrew the spark plug.
6. Put in the new spark plugs.
7. Re-install the spark plug wires or ignition coils (COP).
8. Start up the engine.
Here are some more detailed instructions from [AutoZone](https://www.autozone.com/diy/spark-plugs/how-to-change-spark-plugs):
1. SAFETY FIRST: Park your vehicle on a flat, dry surface and ensure the engine is cool. Clean the engine area of any debris or oil that may have accumulated.
2. REMOVE THE SPARK PLUG WIRE: First, remove any interference items. If your vehicle requires removal of the upper intake manifold, disconnect the vacuum lines and electrical connectors before removing it.
3. REMOVE THE COIL ON PLUG (COP): If your vehicle has coil-on-plug (COP) ignition, remove the coil from each spark plug by gently twisting and pulling it straight up.
4. UNSCREW THE SPARK PLUG: Use a spark plug socket to remove each plug from the engine.
5. PUT IN THE NEW SPARK PLUGS: Check your owner's manual for the correct gap size for your new plugs and use a gap tool to adjust them if necessary.
6. RE-INSTALL THE SPARK PLUG WIRES OR IGNITION COILS (COP): If you have COP ignition, re-install each coil over its respective spark plug and gently push it down until it clicks into place.
7. START UP THE ENGINE: Once you've replaced all of your spark plugs and re-installed any interference items you removed earlier, start up your engine and listen for any unusual noises or vibrations.
I hope this helps! Let me know if you have any other questions or if there's anything else I can help you with.
