Hey all,

I ran into an issue a few weeks ago with a misfire in cyl 2,3,5. Replaced plugs and coils assuming that was the problem, everything was fine for roughly 435 miles, then i ran into misfires in cyl 3,5. Just replaced valve cover gaskets and plug tube seals, now I'm down to a misfire in cyl 5 only. You can hear an audible arc somewhere, so I'm assuming it's a wiring issue affecting the cyl 5 coil, but I have no clue where to go from there. Has anyone had a similar issue, or does anyone have any advice on the subject?

Thanks,
Jacob

 

Since you have an audible arc, start the engine during the night and try to locate the arc. Misting with water may also find the arc.

 

Started it at night, couldn't find anything. In other news, I tried to swap coils and plugs, thinking maybe one is just bad. After starting it up again, I'm back to 3 misfiring cylinders - 2, 3, and 5 like it was initially. Anyone have thoughts on this?