Hey im new here but the strangest thing happened to me no idea what it could be i changed my oil plugs and installed a new fuel filter the other day on my 05 250 went on a test drive everything ran fun much better than it had been went to go start it up today and its only running on one cylinder so i checked the plugs and everything they look fine let it idle for a while to see if it would kick in but nothing only thing that i notice different is the ignition coil seems to be getting hot? so the only thing i can think of is i got a bad plug any other ideas all input appreciated thanks

 

Make sure your fuel filter is going in the righ direction (flow is marked on the outside).
Sound like a fuel restriction problem.

Coils get hot. Its electricity storage.