how do I get to the spark plugs?

Good morning,

The plugs in the back are tight to get to. You need to go from the side to access them at the back. You will need a 5/8 spark plug socket, a 1-inch extension, and a 3/8 long handle ratchet.

https://www.2carpros.com/articles/how-to-change-spark-plugs

It takes a shop a good 40 minutes just to replace the rear plugs. Twist the wires and then remove them to avoid damaging them. Then once you break them loose, you can spin them out easily.

Roy