Ha, under strict doctors orders not to do anything, just had surgery, but about ready to go insane.
Is a red tab on the coil connector that has to be pulled out to disconnect that connector, not really necessary, but I like to remove it anyway first because the wires to it are very fine and don't want to risk breaking any of those wires.
If the boots are baked on and if there are threads of a larger diameter in those two coil pack screw holes, pulling it straight up would break the boots anyway. I have no problems with my two hands to pull it straight up. But then I greased the inside of the boots with silicone dielectric grease from day one. Those boots are really needed to guide the springs inside.
For all I know, a piece of 5/8" heater hose could serve as a boot and the springs may be soldered to the coil pack so they don't fall out. But been using dielectric grease on boots for over 60 years now, and never had problems. Ha, always had dielectric grease, needed that for the distributor cam where the points rode on.
Just out of habit, use my air compressor to blow out the spark plug wells before removing the plugs. Should have a 5/8" spark plug socket, does have a rubber boot on the inside, need about a 9" extension, kind of a deep hole. And you do not want to drop anything in that hole.
Darn near got kicked off this board because I put a very thin like painted on anti-seize on the threads, so as soon as I break them loose, can spin them out rubbing my hands on the extension in a counter clockwise fashion. Installing them is the opposite, use the boot inside of the socket to hold the plug, center it, and very carefully thread it in. Sure don't want to cross thread it, and must be started with a delicate hand, not a good idea to use a 560 ft-lb impact wrench.
Spin the extension until the plug is seated, then use in inch ounce torque wrench, 18 ft-lbs of torque or 216 inch-oz.
Look at the bottom of the coil pack to make sure all four springs are extended, can angle the top of the coil pack toward you to make sure all four boots are going over the plugs, and while pushing it downward and forward until veritcal, push it straight down. Good to have those two coil screws handy.
Changing the plugs on the Cruze is a fun project.