5.4L skipping bad
#1
5.4L skipping bad
My 99 F150 5.4L 4x4 developed a horriable skip on the way home today. I was driving and it started as a studder, now it is a full out truck shaking skip under a load and a noticable skip when not under load. I have pulled the coils, and plugs, all look good. Put dielectric grease in the coil boot and reassemble them all, now the skip is even worse. I hooked a code scanner to it even though it had no check engine light on and it had no codes even though its skipping bad. Any ideas??????????