Understanding Oil-Fouled Spark Plugs A Guide for Engine Health

Excess oil can increase pressure within the crankcase. This pressure can force oil past seals and gaskets, resulting in the oil entering the spark plug wells or ... How to Remove Oil From a Spark Plug Well. Part of the series: Car Repair Tips. Removing oil from a spark plug well requires the right tools ... If there is oil in the bottom of the well chances are the valve cover gasket is leaking. There is a seal around the bottom of each well. The source of the problem is a non-sealing valve cover gasket that leaks oil. Then, this oil can damage the coil packs. It's not a big deal but you do need to identify and correct the cause of the leak (needs plug tube seals and quite possibly the valve cover gaskets). If oil persists in the spark plug threads or plug wells over an extended period, it becomes a significant problem. This can lead to several issues. Oil Filters · TrueStart Batteries · Tires · Spark Plugs · Timing Belts. Find an Authorized Dealer. Oil still looked pretty good at 2000 miles. Spark plug fouling virtually went away. Recommended intervals for engine tune-ups were doubled. As ... Its a very common malady: Your plug well seals are bad. If the oil has filled them up so much that it is spilling through, your plugs & wires ... Get affordable oil changes, auto repairs, name-brand tires, brakes, and alignments at Monro Auto Service and Tire Centers. Same-day appointments available.