Broken Spark Plug on 03 Tahoe...Please help!

[Lessor1007]

Finished 7 plugs, on 8th one spark plug broke nut and all, all that remains in engine block is remaining threads, nothing to get a tool on. How do i drill out the remaining porceline to get acess to extract this thing? Please help!

 

[T3rry]

that is a really really tough position... i dont haven;t done plugs on this engine before, but the only thing you might be able to do is get a flat screwdriver in there and try to spin it out, drilling it will filly the cylinder with stuff and probably give you bigger problems.