I have a 2011 Chevy Equinox that is also have the same engine problems (diesel-like start, rough idle, stalling, etc). It has been at the dealership for 5 days, and they have yet to "duplicate" the problem. The "problem" was occurring all weekend before I dropped it off to the dealership on Monday. What do you do when the dealership cannot "duplicate" the problem? I'm terrified to drive the vehicle, and I for sure don't want to take my 2 year old son around in it. Should I contact GM? Should I insist the dealership keep it until they can duplicate the problem? What are my legal rights in this situation?