Still trying to get some help on why my 98 F150 , 4X4 , 4.6 , auto . It will not have spark at times . At times it will start right up , and if I dare drive it , it will die at any time . After a while it usually will restart . Other times it will not start , and I know its not getting any spark . Have checked for codes , but it didn't show any yet , ??? Any suggestions on where to start ??
Thanks

 

So do you know if every single plug has no spark intermittently? You have pulled each plug to see it? If yes to both I'd check for broken wires going to the coil pack because sounds like a bad connection of some sort

 

Cam or crank sensors