Alright, thanks guys! I just bought new NGK plug wires and realized someone tried to install these as there was already dielectric grease inside the boots. Now I normally put the grease myself as well, but this just causes more problems on the coil pack end. I cleaned all the dielectric grease off the coil packs and that end of the wires. I thought about using sandpaper as well. Will definitely get to that soon! I just hate this feeling like they'll just slip off while driving. Couldn't they make them "click" a little better?