Yes, the valve cover gasket and the plug tube seals.
Yes, the valve cover gasket and plug tube seals have failed.
Spark plugs do not leak oil. What you have is a valve cover gasket leak. This allows oil to run down on the plugs. Try slightly tightening the valve cover bolts. It that does no help, replace the gasket.Spark plugs do not leak oil. What you have is a valve cover gasket leak. This allows oil to run down on the plugs. Try slightly tightening the valve cover bolts. It that does no help, replace the gasket.
You need to have your vavlve cover gasket checked! That may be the cause of oil being on your spark plugs! You need to have your vavlve cover gasket checked! That may be the cause of oil being on your spark plugs! You need to have your vavlve cover gasket checked! That may be the cause of oil being on your spark plugs!
Leaking valve cover gasket.Leaking valve cover gasket.
it could be coming from a valve cover gasket that is leaking
Valve cover gasket needs replacing
I have a '94 and did the same thing after I replaced the gasket. If it continues to leak oil by the plugs, re-torque the center bolts from the inside two out. If that doesn't work, get some gasket maker ($3) and smear it along the valve cover gasket inside the holes and wait for it to cure.
Change the valve cover gasket.
If it is a v6, you need to remove the upper ontake plenum to get acess to the rear three plugs. Not fun.
Oil on the outside of the spark plugs is caused by a leaking valve cover gasket. Replace the valve cover gasket. Oil on the electrode of the spark plugs indicates the engine is worn and is burning oil. The only fix for this is an engine rebuild.
replace the valve cover gasket, easy fix
Possible failed valve cover gasket.Possible failed valve cover gasket.