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it means that the rubber gasket and the rubber seals on the spark plugs got hard and allows oil going through to spark plugs.What you have to do? If you know how,remove the rocker cover and renew the gasket and the seals for the spark plugs and your problem stop to exist.
The important question is - oil on the top half of the spark plug, or oil on the bottom (fire) end of the spark plug?
Oil on the top end of the plug means that your valve cover gasket is leaking. This is a common problem. BMW valve cover gaskets get hard and shrink and have to be replaced about every 10 years. It is an easy do-it-yourself repair, but it can take a while to dig the old hardened gasket out of the valve cover without scratching it. Just be patient.
If the bottom (fire) end of the plug is wet, either the plug is not firing due to a failed coil or some other electrical problem, or you have bigger problems in that cylinder. A compression test is in order.
Hi and welcome to FixYa! It is highly recommended that you replace worn out or defective spark plugs to maintain optimum performance of the vehicle. Having oil in the spark plugs will definitely decrease performance and the oil can be resolve by replacing valve seals.
Hope this helps and thank you for using Fixya! Have a good one!
Hi and welcome to FixYa! It is highly recommended that you replace worn out or defective spark plugs to maintain optimum performance of the vehicle. Having oil in the spark plugs will definitely decrease performance and the oil can be resolve by replacing valve seals.
Hope this helps and thank you for using Fixya! Have a good one!
I dont know about fuel but if it is actually oil, heres what that can mean. Oil is leaking past the worn valve guides or piston rings into the combustion chamber. Causes hard starting, misfiring, and hesitation. I recommend checking and fixing any problems with the guides or rings and changin the spark plugs once you find the problem. Please let me know if this helps and please rate my response for me. Thank you
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