2003 Impala 3.4L, Misfire
I took it to Advanced to have it scanned and it states that the #3 cylinder is misfiring. I pulled the spark plugs and found oil on the #3 plug. I swapped out the coil packs and still the same misfire problem, plug wires are good and I put in spark plugs. The motor is getting gas by the way.
What do you think the possible cause the misfire?
Anybody run into this kind of problem before?
I'm taking it to get it check out some more tomorrow, does anybody know of a good place to have it checked out and what they charge?