Oh yes. I did that this last summer. Had to extract 4 plugs that broke off. The extraction tool really is a life saver. Still had misfiring on two cylinder (with new coils) so I checked the part number on my new plugs. They were not the updated part number so I pulled them all back out and put in the updated part number. Good to go.No pics but today I did spark plugs in everyones favorite 5.4 F*rd...... hopefully stupid misfire goes away
I found before I did this that 3 coils have been replaced, 5 were original. I replaced the other 5 today. I'm a little worried the plugs weren't the cause. The ones I pulled out all looked in pretty good shape and gapped properly..... all were the same motorcraft plugs I replaced them with. I had already tried swapping the coil on the cylinder that was giving me fits and it threw the code again which is why I decided to do plugs, because it also gave me a P0300. I haven't driven it since finishing it, and it would only do it before after "long" periods of time on the freeway. Pretty sure something still isn't right because it seems to be missing still, I haven't brought it up to temp yet though.Make sure to do coil boots and torque the plugs to 15ft/lbs. I fought a misfire and pinging on an Expedition, the "senior tech" had just done a tune up two weeks ago, so the shop owner didn't want me wasting time looking at the plugs. Well, six hours of diagnosing chasing everything else, I pulled a coil and found melty boots with loose plugs.