On an 01 5.4L, from the front of the motor, the 3rd cylinder back on the passenger side, What # cylinder is it? Thanks.

 

That's cylinder #3 [P0303].

 

Bummer, I had a code P0306, misfire in #6 cylinder. A few months ago, I ejected the spark plug from the cylinder that I mentioned and the coil pack is just sitting on the plug, the screw mounts are broken. So where would I find #6?

 

6 is the second one back on the driverside.

 

Well I'm not sure what I did but my truck runs great now. I pulled out the #6 plug, didn't look too bad but I did clean it with sandpaper since I had it out. Put it back in and just like that, she runs great. So thanks to all who helped and to those who didn't but thought about it.

 

You may have had a loose/bad connection between the plug and wire.