I went to heat up the car this morning before leaving and I turned it on and then turned the heat on and hit the rear defrost button and the car started jerking and idling very very rough almost about to die. I pushed the gas pedal a lil bit and kept the rpms up to about 2000 and turned the heat off. It never died but we literally haven't had this car a month and financed it. And when this happen I smelled something that almost smelled like paint thinner but maybe it was gas but it was a very strong smell. Any thoughts on what to check first or has anyone else had this issue?