UPDATE: After 4 days at the dealership and 1 day with a hummer technician out of Detroit,,,,,
NO source of the leak could be found. I think that the area rep limited the amount of exploration to pulling the valve covers.
Problem appears to still be around but I am being told that they (GM) will offer a component warranty on the rig up to 100,000 miles, should be plenty of time to allow the problem to manifest itself in a catastrophic manner.
Once again, thanks for all of the well thought out suggestions, I know it took a lot of thought / time from multiple members of this forum. I have not ruled out any more exploration in the future at my expense, just want to forget about this problem for a few weeks.
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