an update
Just wanted to post an update for anyone interested.
We had our 2008 Yukon Denali back for about 6 weeks. It now has 58,000 miles on, with about 1,000 miles on the rebuilt tranny and engine. The trans was still acting up. The engine was fine until all of a sudden it started acting weird. The engine light began flashing and other messages popped up about traction control and stabiltrak. That's when I heard a noise, coming from the motor. Knock, knock, knock. Hello - can anyone say broken lifter? Seriously, I was not happy.
Turns out that "a chunk" broke off from the piston, and the broken piston broke the lifter.
The dealership is now replacing the entire engine and transmission (I guess they didn't want to rebuild the tranny for a 3rd time in one year).
Hubby and I are still debating whether we should keep the vehicle, with the new engine and trans, or if we should cut bait and run to a different vehicle.
Just wanted to provide an update, if anyone else was having issues.
Thanks - Kim