I have a 2007 Chrysler 300 C with a Hemi 5.7 L engine and just changed the plugs for the first time. No big deal.
First you want to remove the coil housings with a 10 mm socket wrench
Then you want to squeeze and pull off the wire connector
Then pull on the coil with the attached plug insulators. These can be tough to pull off but that is how they come out.
Then use a 13 mm deep socket to extract the spark plugs.
If the socket comes off of the extension, you can retrieve it with a heavy duty cylindrical magnet.
First you want to remove the coil housings with a 10 mm socket wrench
Then you want to squeeze and pull off the wire connector
Then pull on the coil with the attached plug insulators. These can be tough to pull off but that is how they come out.
Then use a 13 mm deep socket to extract the spark plugs.
If the socket comes off of the extension, you can retrieve it with a heavy duty cylindrical magnet.