If indeed all your plugs are drenched in oil when removed, it could be one of two things: Your piston oil rings have failed and oil is leaking heavily past them into the combustion chamber where your plugs are located, or you have a crack in the engine block and oil is escaping through it into all the cylinders. Either the piston rings need to be replaced, or, if it's the crack in the block, the engine must be replaced or overhauled. It's doubtful that all the piston rings would fail at the same time unless you never changed oil or ran the car with low oil.
SOURCE: 1994 Suzuki Sidekick spark plug cover blown out.
Oh, ok. No, they shouldn't be related. The plug cover meaning the spark plug wire boot that goes over the spark plug hole? Why won't it stay in? Is the spark plug missing? Those plug wires snap onto the spaek plug holding the wire on the plug.. There should be a spark plug in the hole. If not, you probably had it blown out. That happens once in a blue moon. If the plug is missing, get a new one and carefully install it by hand, no rachet. If the plug won't start in the hole the first few threads mat be strippe. Do not cross-thread the new plug. Spark plug hole taps are available at parts stores. good luck
SOURCE: Oil where spark plugs go?
For the oil it seems like head gaskets need replacing. As far as the electrical issue, sound like you may have a damaged wire from the ignition to the starter, I would try to trace the current to all electrical components; battery, starter alternator and see if you can find the area of the bad wire.
SOURCE: I changed the oil, spark plugs and valve cover
test to make shore you ignition coil is working" unplug any plug wire and then try starting it...you should her the ticking from the ark of electrisity from the coil to the engine block its self... first: be shore youve connected the spark plug wires in to the right slots on the ignition coil second: make shore the wiring harness just upstream from the air filter is connected"without it my montero want start" third:make shore all harmesses are connected and tight.... forth: now turn the car on..but dont start it.. and see if the check engine light goes off.... fifth:try giving it a lil bet of gas when trying to start..... thats all i can think of, srry for spelling...hope it helps
SOURCE: 1999 Audi A6 Avant 2.4L V6 30V (petrol) Oil leak.
May be totally unrelated but I had the same issue on a 95 civic. It has "spark plug seals" that needed to be replaced. Dealer did it for about $250.
SOURCE: why is spark plug covered in oil on only one cylinder
it may be bad plug not firing or the weir is faulty.
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