OK.... Spent 6 hours working on the 'maro today, and all I can say is that GM suck when it comes to designing cars for maintainence!!!!
Out of the 8 plugs I have so far only been able to get a ratchet onto 6.... Out of those six, 3 fer finger tight and showed signs of blow-by on the threads, and 1 was so loose you could rock it side to side....
I can't physically get a tool onto the remaining plugs without (for the rear drivers side) getting the front end of the car up on stands, which I couldn't do safely with the stands I had 'cause they were to tall, and (for the front passenger side) removing the alternator.....
The bad news is that while the plugs looked reasonable, they were not the platinum plugs that they are supposed to be so that they only have to be changed every 50k miles..... So I'm probably going to have to do the whole job over.....
At lease I have a bit more confidence that it's not going to die on me again, and it sounded noticeably different when I ran it and reved it up...