Cylinder 2 misfire on 2002 Ford F-150 5.4 triton

Question

Have a 2002 Ford F-150 that says misfire on number two cylinder. Have changed plugs checked egr valve and sensor. Fuel pressure is fine. Coil was replaced but bothe the old and new coils are orange when sparking. Can't figure it out at all. Plugs are good and not cracked even tried changing them still same thing

Answer 1

Hi there

Check for intake manifold leaks along cylinder #2. If there aren't any you can try swapping the fuel injectors. If that doesn't resolve anything then the next step should be a compression test to check the inside of the engine.