April 13, 2011i`m selling my 03 avalanche and want to get a 2000-2007 chevy/gmc 2500 truck with a duramax diesel engine. i have never owned a diesel before so i don`t know much about them but always wanted one though lol. so with that said i want to know what i should look out for when searching? are all 99+ chevy 2500 trucks have the duramax engine? or is this only in the "duramax" trucks? any years to stay away from? and anyhting else you guys can tell me would be great.