Originally Posted by SkyBound
It is my understanding that the '11 and '12 models use an electric vacuum pump to provide vac to the brake booster when under positive pressures (boost) and because of ongoing problems with that pump, they switched to a more reliable mechanically driven pump in '13 and up.
Yeah, you're right. I just realized this post was for 2013 & 2014. I have a 2012, so I am stuck with the crappy vaccum pump but no break booster problem... 6 in one, half dozen in the other. Fix one issue and create another, isn't that exactly how it work? Ha!