Big Jim -

I know for a fact (not a Ford sales brochure wink ) that the process is done on the entire UIM. From the horses mouth (Extrude Hone)

Just like Lance said; the "putty" is forced in through the TB opening and comes out all 12 ports (EGR, IAC, etc are plugged of course)

My post is how & what is done.

2000 SVT #674 - Check it out!

Whoever coined the phrase; "If it ain't broke; don't fix it" ~ Just doesn't get it...