11-14 F150 ecoboost 3.5 weep hole mod and misfires FIXED 

Weak starter just changed mine took me a while to pinpoint it lol

Also a 2011

You will get a misfire code for a specific cylinder. You can swap the coil pack to a different cylinder.if the misfire code changed to the new cylinder that usually means that coil pack is bad

@@texaseliteperformance4471 I'm experiencing that shudder. I installed a catch can at 50k miles, changed spark plugs, and pcv valve.

If you read up on the forums when you Google it everyone seems to say it's a must do mod. Its done to prevent oil accumulating and causing misfires

@@texaseliteperformance4471 thank you so much! i know so little about trucks so far but im trying to learn as much as possible and this has helped a lot!!

I left it but you can plug it with a self tapping screw and drain it every so often

Leave it open it'll work like a catch can

It ain't no sense of drawing a hole in it then you're going to plug it back up