I've had mine 4 mo. and the first 2 it ran good, then it flew the coop. I have replaced the EGR, fuel filter, and it still is not running good anymore. This will be my last Chevy. I'll go back to a Toyota, Isuzu, or something I know I can depend on. I'm not pleased with this one at all. It is in great condition as far as looks inside and out, but that's about it..