I have an '03 Lightning. While the truck was up on my lift this morning, I noticed that there was oil dripping from my intake duct. I took the intake off and there was oil all in the duct. It looks like the breather tube from the left valve cover is the culprit, but I don't know why. The pcv valve is fairly new and functions properly. I called my local SVT dealer and they ran a bulletin search for me. They found Special Service Message 17655- it directly describes the problem and Ford says it's normal. I don't like it. Anyone had a similar problem? If anyone has any information, please e-mail me at:
turturici@comcast.net
Thanks

part of the Ls pcv sytem, all do it. I have the lightning enterprises kit off ebay on mine, some use oil seperators , others breathers.. If u seach on nloc.net , svtperformance, or f150online u can read alot of threads on this prob.

Check out this post, pretty nice kit for the money. You could spend a lot more, but this one seems to get the job done....

http://www.turbobuick.com/forums/showthread.php?t=173964