I know you posted this a few years ago, but if you have an update on the status of your Jeep it would be appreciated.
My Jeep 4.7L H.O. WJ just had a rocker on Cylinder #2 fall off and one on Cylinder #1 was loose.
I was wondering about reliablity after this type of repair. Did you keep your Jeep, if so any other problems?
Yea, no prob. I'd hoped this thread would help someone, someday.
After numerious trips to the dealer (under warrenty) and my personal mechanic (since I don't trust the dealer), we ended up with two bent valves in the head, consistant with the thrown followers. It'll never be known if it was the "cause" or the "result" of the thrown followers, as sticky guides could have also caused it.
I ended up having the head completely gone thru (new valves, guides, etc), and it was all covered under warrenty. I've had zero problems since. I've since put around 30k miles on it, without as much as a hiccup. The passenger side never had an issue, and I did NOT have that head worked on, only the problematic one, since I would have had to pay for the other.
If your rig isn't still covered under warrenty, (factory is 7-7, seven years, 70k miles) than this can be a costly "replacement troubleshoot". I'd reccomend having someone qualified look at the cam and followers for any signs of wear/damage, then have them re-installed and drive it. If your Jeep is like mine, it won't take more than 100miles for it to pitch one again. If it does, I hate to say it, but I'd go through the head, especially valves and guides.
I hope this helps. Good luck!! Keep me posted.