The latest is the pin holding the timing chain broke, this fried the cam, but the engine still turns. Somehow, the towing trip to the dealer somehow un-froze the engine as it wouldn't turn for me. So they are installing a new cam in this rebuilt engine. I have little faith this motor will last, so Hummer is arranging to add an extended warranty of 100k miles so I can sleep at night. As everyone of the 6 new cars/trucks I've bought in the last 11 years all had extended warrenties that were never needed, I thought GM had it's act together and I didn't get it with this H3. Bad mistake. If any of you are to keep these beyond the standard warranty period, buy the extended warranty or you may be SOL.
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