Their is oil on the spark plugs what is wrong a gasket or are the rings going out on the car because the check engine light did come on and sayed it was a misfire on cylinder 2 so i changed the plug and it helped but it still has oil on them what is the problem
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If the spark plug is oil fouled, you either have leaking valve seals, or bad piston rings. Bad rings would be accompanied by excessive blow-by. With the engine running, remove your oil filler cap. If there is air pulsing out of the filler tube, it your rings. If not, it is your valve seals.
I'd put fresh plugs in it and drive it for a week, then check the plugs.
Sometimes you will get high compression readings that are not valid because the rings are soaked in oil so they think they are sealed when they are not.
With the engine off, you could try removing the oil filler cap when the engine is hot, then restart it. A little vapour is OK, a lot indicates bad valve guides, head gasket,or ring blowby.
Also, try checking inside the exhaust tailpipe. If it is oily sooty it is also an indication of possible ring problems.
Review the maintenance history. How many miles on the engine? Could be the engine is getting tired.
this sounds like the engine could have some bad valve guide seals allowing oil to be pumped into the combustion chamber of the engine, or you could have some broken pistion rings in the cylinders, i would get the vehichle checked out soon for this problem.
If you notice smoke when you first start the engine, it may be that the rings are worn,or the valve guides in the heads are worn, and the valve seals may have failed. Also the oil may be cavitating in the valve covers, and not running down to the pan, as the engine is running.The oil drain holes may be plugged up from sludge! And the pcv valve may be plugged! Verry high mileage,not enough oil changes?
I hate to say this but it could be going straight into the engine, if it's not leaking or doing back into the overflow/rad..
Note I've included the instructions/info about knowing if your head gasket is blown (which could be causing the antifreeze to leak into the engine) This should help you out a bit diagnosing the problem.
1. Exhaust: When you have a gasket leak, you will notice white smoke coming out of your tailpipe. Sometimes drops of water will drop from the end of the tailpipe. The exhaust will also have a sweet smell to it.
2. Spark Plugs: Your spark plugs will display one of the last signs of a blown head gasket. If you have green dyed coolant in your system, the spark plugs will have a green tint around them. If the problem is very severe, the coolant may start squirting out of the plug holes which is not good. 3. Oil: You will notice a milky type ring surrounding your oil cap. This is caused by coolant entering the engine oil through the leaking gasket. This mixture leaves the milky type ring around the oil cap when it evaporates. You can check for this by taking the car for a short drive, then checking the oil for contamination.
4. Engine: Lack of engine power is a sign of a blown head gasket. The engine will lack power due to compression loss. The engine will also run poorly and will idle roughly. You should also be careful because the engine will overheat quickly when you have a blown head gasket.
5. Bubbles: A gasket leak will cause bubbles of air to come into your radiator. To check for this, you should first remove the radiator cap then warm up the engine. When you rev the engine, you will see bubbles come out from the top of the radiator.
Typical symptoms of a blown headgasket may include: -bubbles of air coming up into your radiator (remove cap before starting) -leaking radiator -milkshake colored oil -overheating -rough running -coolant or oil running from head -spark plug(s) that have a green tint (if green coolant). -white colored or sweet smelling exhaust, white smoke of your tail pipe, or loosing coolant through your overflow
I just had this fixed on my suby today. The cause is that the spark plugs, go through the valve covers on the 2.5 l .When the o rings in the cover go, the result is oil in the spark plugs. The cost of the repair in Canada was about $500 including diagnostics as well as new plugs and wires About 1.5 hours labor and new seals and gaskets. It now runs like new. This is a common problem for this subaru engine as well as for the dodge neon.
Take the car to a car wash and power wash the engine. Do this ONLY with a cold engine. And be prepared to have problems with it starting as water get's into the electrical components. Take some WD-40 with you to spray inside distributor caps, on spark wiring, etc. to get the engine running again.
Then check the engine weekly to see where the oil is coming from.
a new valve cover gasket and o-rings around the wells should have cured this...did you clean the old o-rings off the valve cover completely before installing new ones? this is a common problem with these models.....i would re-check my gaskets and mateing surfaces. valve cover gaskets and spark plug well o-rings are relatively low cost. the spark plug is tight, correct? write back with an update!