My Chevrolet Trailblazer EXT LS has the 6 cylinder motor. It currently has 193,000. It has currently issues with a misfire cylinder 2, a blown resistor motor in the rear, and the 4wd does not work. The rear wheels lock up when I put it in 4wd. Overall its a good vehicle. The rear seats are easy to work. I like the cargo shelf and the lift glass and gate are handy. I've hauled tools, garden supplies, groceries, and still sat 4 people comfortably. Since its a 2005, parts are easily found in junkyards and online. Once everything is fixed on it, I believe I'll get another 200,000 miles out of her.