I have a 99 f150 with a 4.2 v6. I'm not getting any spark to cylinders 2 and 3 #1 cylinder is getting an intermittent spark. I've replaced plugs and wires and now the coil pack.what the heck. Anybody have the answers?

 

It would almost have to be something wrong with your new plugs, wires, and/or coil pack. How do you KNOW it's not getting spark?