Plugs wires arcing at spark plug

Good morning.

The boots are leaking in the wires. They are worn out and allowing electricity to leak to the well.

Replace the wire set. That will resolve the issue.

Roy

I have purchased brand new spark plug wires from places like Walmart or is not an auto-parts store that also shorted to the metal engine. The parts are cheaply made, just going with a brand name is these are new would fix the problem. If they are old, then I agree with Asemaster.