Just purchased my 2000 4.7L 4x4 dakota. the truck is in good shape but there seems to be a small miss at idle. have just replaced the plugs and its still there.. i dont no much about coil pack ignition systems so any advice at all would be great Thanks for the help

 

each cyl has it's own coil, pcm controls which one and what time. Could be a bad coil, back crank or cam sensor. I would check the coil and if it's the same cyl each time...

 

how do i go about testing the coils.. is there a specific voltage i should be looking for.. how can i find what cyl is missing its not coding out?