98 4.6 F250 4X4 Reg Cab

The SEL is on and flashes and engine misfires when accelerating, we checked plug wires, put in new coil pacs but the problem hasnt gone away...Im going to pull the plugs next, any other ideas

thanks

 

Welcome to the forum

If the wires have never been changed, it's probably time for a new set of Motorcraft wires. It could be a plug, replace them with Motorcraft Double platinum plugs for the best results.