First. I couldn't get cowl off due to rusted bolts. I figure the space is big enough and I know enough I can do back spark plugs by feel no problem,right?. Wrong!!
First spark plug 5 is so burnt the cap is stuck like won't come off stuck. I pull it so hard I pull only the wire out out of cap. I move on for now. Remove 3,2,1,4,6 and replace with new plugs and wiresrelatively with no problem what so ever. Now I've been at this all day now into day two I'm tired frustrated I can't get that back plug out for the life of me. It's because it still has the top of plug cover attached and my socket won't reach the bottom of plug. I can't see doing all by feel. How do I get that very back plug out. Or that piece of of it?? Please help me...

 

You can get spark plug wire pulling tools. I never owned or used one.

It sucks you can't get the cowl off. I've done it at least 5 times in the recent years. I can now get the wipers, cowl and wiper tray off in less than 10 minutes. Opens up the back of the engine nicely.

 

Typically can maybe use needle nose pliers to grab whats left of the wire .... you already need to replace it because it pulled apart ... cant harm it anymore.