Biju...The engine replacement was done at Tynans Isuzu in Aurora. Replacement was done at 36k. Just turned 47k yesterday. A few months ago I inquired with the dealer about the 12mo/12k warranty that was about to expire. I talked with him about all of the engine problems with I've read about on here and voiced my concern that my problem could resurface. I seem to remember him saying something like my new engine was an "updated engine" but I guess I waived this off as dealer fluff.
Now I'm really interested. I'll try to get the numbers off the block and a pic.