I’m working on my son’s 1996 Ford Probe SE (2.0 & A/T) and that suffered from hard starting and a rough idle. I was doing a compression test and found that the number four spark plug was doused in oil. I changed the valve cover gasket and tube seals, but now the car won’t start at all. I checked and I’m getting spark and fuel pressure. The compression was low-ish, but not much different than the last time I checked it .
Also, when I took the valve cover off, I noticed that the PCV valve was plugged up, so I cleaned it out and it rattles again. I plan to replace it, but I just cleaned it up for test purposes. Shining a flashlight down the spark plug well looks like there is quite a bit of oil down in the cylinder. I assume that it filled up and ran down in there when I removed the spark plug. Would the oil in there cause the car not to start? If so, how should I proceed to clean it up?