alright so i want to get the egr mod and installed. but i can't see any "egr tube" i have a 96 4dr 4x4 4.3L acording to my haynes manual desprition i have the linear valve (no vaccum line just an electrical connection) when i take it off the bottom of the egr vale has one large open hole and one hole filled with what looks like a torx screw and overall is completly flush and on the manifold i have a flush surface with 2 holes. so can someone tell me what im not seeing. because from what i have read and what i see is just not adding up for me.


and has anyone heard of a pcv mod? just saw it mentioned on another site as something to do but didn't say what it was.

 

alrigh while going though i thin it was an s10 site it mentioned something about a a nipple and behind the a/c pump and i looked on mine and i noticed a hose running from somewhere in the back bottom of the engine area to right behind the a/c pump where it connected to the engine is that the egr tube?