Engine missfiring, oil on spark plug electrode 99' A6 2.8L
#1
Engine missfiring, oil on spark plug electrode 99' A6 2.8L
Hi,
after getting a cylinder 3 missfire code I pulled the spark plug and the electrode end is COVERED in oil. This is the only spark plug that is oily. The car doesn't perform as it used to and my gas mileage is down. I did some research and what I understand is that it could be worn/broken piston rings or leaking valve seals is this right? Can I replace the valve seals without taking the engine apart or should I just sell the car? There are 91K miles on it. Thanks guys!
after getting a cylinder 3 missfire code I pulled the spark plug and the electrode end is COVERED in oil. This is the only spark plug that is oily. The car doesn't perform as it used to and my gas mileage is down. I did some research and what I understand is that it could be worn/broken piston rings or leaking valve seals is this right? Can I replace the valve seals without taking the engine apart or should I just sell the car? There are 91K miles on it. Thanks guys!
#6
Well.. seals dont just suddenly die... I'd start by seeing if you have spark to the plug and going from there.
After you get it going, then check around for someone to fix the seals as there does seem to be some leaking.
After you get it going, then check around for someone to fix the seals as there does seem to be some leaking.
#8
But how would the oil get past the threads into the cylinder? The oil it on the electrode end of the spark plug.
#10
If it'll help look at this link of a valve cover gasket and notice the inner gasket that seals the valve cover to the head around the spark plug cylinder.
http://www.partsgeek.com/gbproducts/...ek+Google+Base