Why is there oil in my coil pack?
Why is there oil in my coil pack? The most likely being an oil leak from the valve cover gasket. Overtime the seal between the valve cover and that spark plug tube can fail, causing oil to leak in and fill up around the spark plug and ignition coil. How are ignition coils connected to spark plugs? The ignition coils provide the spark that fires each of the spark plugs in an engine. It is either linked to the plugs via spark plug cables, or each coil is directly connected on top of each spark plug—the latter style called a...