I noticed today that my jeep idle sounded strange then I popes the hood and noticed that the coil is cracked right on the top and it was arching out of the crack. Then I noticed my exhaust pipe was really glowing. I was wondering if the problems are related.
I have 2003 jeep wrangler 2.4 l and when I start the jeep it idles really rough it kicks and bucks for about 10 minutes I've changed the plugs and wires cleaned the throttle body and sensors. I was told it was probably a vac leak but I haven't found anything.