They finally started on it today, will have the head off tomorrow and see if its a problem with the head, gasket, or??? They spent a lot of time trying to prove it was something else, but came down to something wrong with the head as its the only thing that changed. If head has issues I still have a back up. Pushing them along, I still need 2 skids, and hopefully a CB install. Man, just a month to get this sorted out. Never changes....Our New 4Runner is as slow as the 1996 Montero, but at least it will run forever.