u/Legitimate-Ranger-94

I’ve had a check engine come on and off for the last year on a 2013 Ford F150 the codes say it’s a cylinder misfire in only one of them. I had all spark plugs and coils changed and it still misfires. Fast forward a year I’ve had check engine light mostly on but it would turn off every now and then. Recently it has started flashing everything I’m in idle.

Now I’m concerned it’s flashing…

The only thing I can think of is the bolt that the holds that screws the coil down is broken so it’s not fully secured..