Good afternoon, I have a 2015 Ford Fusion SE. My concern with my vehicle is that maybe a couple of times a week when I start my car up the next morning or even throughout the day it starts right up but it'll sputter like a lawn mower as if it wants to cut off. Then within 10 seconds it's right back to being normal. It drives great. There's no jerking, stalling, or anything else. What could that be? Thanks for your opinion and advice.