Ryan..is your brake pedal hard or soft during your brake failure? if you use repetely you could be losing you vac assist for a bit until it builds up again. I've noticed this a lot after changing brake pads when pumping them up several times the vac assist cannot keep up until you back off for a few. try pumping you brakes and turn your key off and I'll bet your car will keep running.maybe vac pump is week or the booster has a leakdown..just a thought...paul