Got the rear left (#4) coil off and the plug was slightly loose too. So tightened it down and swapped coil packs around to confirm that it is indeed a dead coil and yep it is. Got a new motorcraft unit on the way.
Also a tip for others who have problems with getting the coil pack bolts off, use a 6 point wrench! I only had 12 point and ended up rounding a bolt off. I couldn't find any 6pt wrenches locally so I had to order a set of craftsmen wrenches.
The coils use a 7mm bolt, and the 6pt wrench got the rounded bolt off no problem! Not sure why these wrenches are so hard to find, thanks to craftsmen for saving my time. Definitely recommended for people with blower setups that limit the room for a socket to fit.
Also a tip for others who have problems with getting the coil pack bolts off, use a 6 point wrench! I only had 12 point and ended up rounding a bolt off. I couldn't find any 6pt wrenches locally so I had to order a set of craftsmen wrenches.
The coils use a 7mm bolt, and the 6pt wrench got the rounded bolt off no problem! Not sure why these wrenches are so hard to find, thanks to craftsmen for saving my time. Definitely recommended for people with blower setups that limit the room for a socket to fit.