2005 Chevrolet TrailBlazer EXT LS 4WD 4dr SUV (4.2L 6cyl 4A)
Bought this 2005 EXT model with the I6 motor as a new car.
Nothing but problems since then - instrument panel replaced 3x's, wheel bearing hub replacement and new water pump all before 80K miles.
Vehicle now has 93K miles and had to have it hauled back home from vacation because of a mis-firing problem in the 5th cylinder.
the cyclinder has no compression which will likely require a head replacement (not a cheap or fun endevour).
If you are thinking of buying this vehicle - Don't - it's a total piece of junk.
I'm a die hard Chevy guy, but I think this is my last.