Re: 2011 Equinox Rough Starts and Hesitation
Hopefully it is just a simple as a Camshaft actuator as JayT pointed out as a possible cause.
However, the issues with the 2.4L are very well documented. Knock on wood, my 2012 2.4L seems fine at the 60k mile mark.
If you plan to keep the vehicle, I would highly suggest looking into some kind of extended warranty on the powertrain. If you can't get one, dump the vehicle and get a V6 or a newer 2.4L (2014 and up).