Oil in all of my spark plugs. what failed, why, and how do i fix it? any answers will help. thanx.?

Here's an unlikely scenario, but seems more possible than all valves or all rings failing simultaneously. Could there be oil leaking from somewhere and onto the air intake? I can't imagine too many other scenarios that would cause this problem...Oil in all of my spark plugs. what failed, why, and how do i fix it? any answers will help. thanx.?
Any of the above answers could apply to your problem. Take the car to a qualified, trustworthy mechanic. If he doesn't know exactly what is causing the problem, have him fix one thing at a time, from the cheapest to the most expensive repair.Oil in all of my spark plugs. what failed, why, and how do i fix it? any answers will help. thanx.?
More than likely the valve seals are bad so the head will have to be rebuilt
sounds as if you have blown an intake gasket if you have oil suddenly on all spark plugs, if it is a v8. If it is a 4 cyl or 6 then you could have blown a head gasket.
Pull out ALL the plugs.


Get a compression tester.


Open your throttle body/carbureator all the way open with a brick on the throttle pedal.


Remove the middle distributor wire.


Put the compression tester in ALL the cylinders and have someone crank the engine over while you do this.


Write down the PSI of EVERY cylinder. It should not be more than a 2% difference.


If they are, take a spoonful of oil and put the oil in one cylinder at a time.


Crank the engine over again.


Write down the compression PSI right next to the compression PSI you read from that same cylinder before.


If the PSI went up by you doing that, you have bad piston rings. Replace the rings.


If the compression DID NOT go up after you did the test again, you have bad valve seals on the head. they can be replaced easily right on the engine with an air compressor, a cylinder fitting from the auto parts store that keeps the valve from falling into the cylinder and a valve lock removal tool.





Hopefully, you only have a valve seal problem. Good luck!
you don't say how old the car is but it sounds like the engine needs a ring job. The oil is getting past the piston rings and flooding your plugs with motor oil. I'm sure the car is running pretty crappy too.
It could be a number of things - bad valve(s) is the most likely though.





You might end up having to have the head rebuilt.
Judging by the wording, I'm guessing there is oil collecting on top of the plugs..not in the combustion chamber? When you pull the plug wires off, the plug valley is filled with a pool of oil?


IF that is the case, replace the valve cover gasket (the outer, and the inner). The inner portion keeps oil from getting splashed into the plug recesses.
Did you fill up with diesel? This can cause the same problem.
Well did you clean the spark plug bore in the head before removal? A lot of times while removing spark plugs people will pickup dirt along the outside of the head.


If this is NOT the case, we are looking at 1 of 2 things.


Your piston rings are alowing blowby, which is where motor oil is allow to pass by on the cylinder walls, or the other, which is worn valve seals.


However, the odds of 1 valve for EACH cylinder going out is very un-likely. Does the vehicle run well? They probably just picked up dirt during extraction.
im guessing a high milage motor,?if so your car needs a ring overhaul,new engine,or complete overhaul.if not someone poured ,contaminated fuel in your gas tank?have you run outta gas lately?also 2 quart overfill of engine crankcase,cause oil sonsumption and oil buildup.
many time this means bad piston rings or head gasket- have a compression test and cylinder leakdown test done.
if the oil isnt on the firing tip, the theres nothing to worry about, but if its on the threads, then you have a leaking valve pan gaskets. if the oil is on the tips, then i would say the oil is passing up the oil rings. all i know is do a ring job or get a st of oil fowlers and put them in your engine and then install the plugs.