It can cost between $60 and $200 to make all of these repairs. It will depend on where the person buys the car parts and if there is a shop involved.
oil leaking on your spark plugs in your Lincoln LS because you have a leaking valve cover gasket.
There are a variety of reasons for an engine misfire in a Crown Victoria. You may need to replace the spark plugs and wires. Other causes include leaking vacuum hoses and leaking fuel lines.
No spark? Leaking injectors?
it could be coming from a valve cover gasket that is leaking
Leaking valve guides in the head will cause oil to get around the spark plugs.
If they are not in properly there will be oil leaking around them on a regular basis.
If you know the spark plugs and wires are good, then check for a vacuum leak. The vehicle is 11 years old, and you may very well have a crack in a vacuum hose. A leaking intake manifold gasket will also cause rough idle.
Disconnect the battery, remove the spark plug cables and boots, and remove the old spark plugs. Throw out the old spark plugs, Put in the new spark plugs, replace the spark plugs cables and boots, and reconnect the battery.
White smoke is an indication of a blown head gasket. Oil leaking on the outside of the spark plugs is caused by a leaking valve cover gasket. Oil on the spark plug electrode is a sign of worn rings.
Bosch Platnium No spark plug will improve performance on this engine in normal non-racing applications. Use the OEM AC/Delco plugs. If you have not replaced the plug wires and all vacuum lines, that would be something you might want to consider. Replace all the vacuum lines one at a time in order to not get confused. Very inexpensive repair that can have a positive effect on performance if any of the vacuum lines are leaking. Also replace the distributor cap and rotor if equipped.
http://en.allexperts.com/q/Hyundai-Repair-815/change-spark-plugs-XG300-1.htm
No. The valve cover gasket is leaking and should be replaced.