Hey guys, I smoke tested my 2009 xf 4.2 NA due to having wonky trims, I replaced the pcv and that eliminated the issuse but only for a couple days. For some reason im unable to upload a video but significant amount of smoke is puking out egr around top cylinder between plastic, the metal and metal seal seems fine, and then on my oil fill cap it is also puking out. Is the egr rebuildable and is there supposed to be a rubber gromit on the filler cap or do I need to replace the whole valve cover.
I used a smoke leak detector out side, and the smoke was insanely visable.