Originally Posted by JamesM3M5
Themyst had a valve cover gasket issue, which probably had some PCV implications, causing a misfire. I think if I see a lot of liquid oil down in the port when I do this car's carbon clean, it will be a sign to pull the valve cover and check the gasket or replace the whole cover. Won't be the first time we've found a defective N54 cover. I also bought a digital manometer to check the PCV and crankcase pressure.
Actually, my mechanic pointed out to me not to place my hand on the valve cover when leaning over the engine as it is not designed to carry body weight and can crack easily.
He suggested placing your hand on the oil cover cap as it is supported by the block underneath.
The valve cover.....not so much.
Tip of the day