Yes it is a 2004 5.4L.

Yeah, I had read that it was maintenance free, too. I do know they replaced it, because I asked for the old part. But, what does maintenance free mean? Is it never going to fail? I doubt that. They had just checked into a few different things and one of them was that there was quite a bit of resistance through the PCV. I don't know what ohms it was reading and I am not electrically minded.

I am still worried about the amount of the foam I am getting. It is not just a coating, in 2 weeks (500 miles) it will fill the bottom of my filler cap. If everyone else gets that much then I will feel better and let the issue die.