Hello. I have a 2016 Ford Fiesta ST with about 30,200 miles on it. I've noticed after stopping for gas. ( I use 93 octane). I'll start my car & drive a short distance to the stoplight. And while I wait on the light to change the engine will start to surge. Almost like it wants to shut off. The last time I stopped for gas it started to surge. I drove home & let it idle & The engine did shut off. I restarted & it shut off again. I drove it later on & @ stoplights there is an intermittent surge. I have an appointment at Ford on Monday. I was wondering if anyone else has this issue. Specifically after refueling ? Thanks.