I had a coil plug break the threads off in the engine. I got a easy out- reverse thread bolt. I dug out the porcelain and the electrode, and blew it all out with air nozzle. So I get a easy_out reverse thread bolt. Well now it's stuck in the broken thread hole , and the bottom of the broken threads is the little bent piece that the electrode sparks too. But now it's stuck in the hole, my coil fit perfectly over the dye . I put everything back together and started it. By the way it's a Durango 5.7 ltr 16 plugs , We'll 15 & one metal die. The engine runs excellent, and I'm changing the oil & filter tomorrow. Will this go bad for me?????? If your just guessing please don't answer, experience only please life of car if wrong. Thank you. I plan on trying to get it out, but I have worked on this for 3 days straight and have damaged quite a few tools. Even bought some and still no deal. !&&* the engine ate it too.. Sooo.....