Yesterday I had the "dubious" honor of joining the brotherhood of the EGR (2011 JKUR auto)... :rolleyes2:
One tip I would add, pertaining to that super hard to reach bolt on the back of the valve:
For awhile I was fighting with various wrenches, etc. to try and get a good bite on that bolt, all the while being scared to death that I was going to round it off (as many have). I decided a socket would be the only reliable solution but the dipstick tube was too close even after some "coaxing" with a pry bar. Then I noted that the tube is attached to a bracket directly behind the valve. Rather than risk damage to the tube, I was pretty easily able to get a good sized pry bar on that bracket and move the whole thing almost to the firewall. At this point I was easily able to get a flex-head wrench and socket on that back bolt and safely remove it.
edit: I did use a sizable cheater on the socket wrench.
Not that it didn't suck but it certainly sucked less. Good luck!
