Just recovering from a P0308, #8 misfire. replaced the COP and all plugs.
The truck (02 screw 5.4) ran great following this maintenance. I drove 50 minutes to work the truck felt great. Smooth acceleration, and no hint of the shuddering I was previously experiencing. On the ride home, 40 minutes in, I was confident and ready to "drop the hammer" and see what she would do. When I hit it it, it died, although still running it felt weak. I immediatly pulled over and had her towed home. (paronoid that I'm going to spit a plug). Once home I found that there were no codes and it was running fine.
Is is possible that the computer was not ready for this and did not fully relearn what to do? Any suggestions would be helpful.

 

when one COP goes out the rest are sure to come shortly there after.

 

Can someone please talk me out of re-torking the plugs this weekend?

 

Im wondering if you cleaned and reoiled your filter in the process, and if so
When was last time you cleaned the MAF?

There is article on called "clean your f-150 MAF" somewhere
in this forum.. lost the link but look it up if needed.

hope it helps.. I'm on my way to the garage to do the same now...