Originally Posted By: itguy08
Originally Posted By: Kuato
I have spent a lot of time on F150 forums...and the EB guys pretty much all say it's a necessity that should be factory installed, so yeah a great investment.
Which ones are those? I also do and while many believe in the supposed benefits of the can most do not put a can on. Ford has millions (probably close to 6 million now) of these engines on the road coming up on 7 years now and the those that put a can on are in the vast minority of owners.
Many of us had a heated debate a few years ago with one particular vendor who stated the rumor that the EB had a "defective PCV system" and he made many wild claims about his can. The usual "more power", "less deposits" , "more MPG" and other nonsense. He was challenged for dyno runs before/after the can. We got nothing.
One claim was that over time the MPG would go down I even posted my 80k or so MPG data from my EB vehicle and when graphing it, it's remarkably steady over that time. Up in summer, down in winter.
The VW guys even debunked that they prevent deposits. They installed all sorts of cans and still got the nasty deposits.
They may have limited use in heavily modified/boosted vehicles but for your stock vehicle they do nothing.
The fact of the matter is that the "junk" being pulled out is present in every vehicle with a closed PCV system (basically any car made since the 50's). It's there, gets burned and causes no issues.
However the plugs should be changed about 30-40k on the F150's. When I bought mine at 43k it had a slight miss on hard acceleration when cold and an occasional slight rough idle. Replaced the plugs and back to 100%. IIRC the F150 EB runs at slightly higher boost than the car version. Got 75k out of the plugs in the SHO and didn't notice much when I changed them.
F150forum.com is where I've spent the most time. Your post is spot on, some people have zero issue with intake deposits over 100k miles. But some do, and in the cases where they do, the catch can has helped.
That's all I'm saying, is that it can help. Maybe not for everyone though. And one thing I didn't take notice of is which owners had modified their EB, which might make a difference also.