So today like many advised on here i decided to change my plugs with ac delco 41 103s and clean my throttle body seeing as i have 177,500 miles on my TB. Got all changed out and went for a test drive. Blinking ses and had a misfire. Pulled everything apart again and as i was checking #3 coil pack the bolt snapped and broke off. So now my major issue is getting what seems to be about 1/4 inch of bolt out. Any suggestions or is there away just replace #3s spark plug well. Please help.