2006 Aveo - Plugs Covered with Oil!
ok, so decided to change my plug wires due to coil pack failure and every plug was completely covered with oil. the plugs seemed difficult to remove. I cleaned them up and the plug wire sleeves they sit in.
the plugs went in straight and we I made sure they were not cross-threaded. tightened them snug.
car runs fine. I also torqued down the valve cover gasket just a hair.
seems like the plugs jumped their sockets but can't be sure. if so, too much backpressure from exhaust ?
can't think of any other causes. am I close?
update. just thought about this. it's doubtful the plugs jumped thread. car did not smoke at all. but, when I removed and cleaned each plug, oil leaked into combustion area. the car smoked because of that when I started it.
that tells me oil leaked into plug sleeves but did not leak past plug threads. otherwise, car would have been smoking all along.