Engine "chugging" at stoplights (hot outside, AC running)
2016 Limited with ~53K miles. owned it a couple months now.
my commute is 14miles, mostly highway. I've noticed in the afternoons - hot outside, engine is fully warmed up after driving 20min on teh highway - when i get stopped at a light near my house, standing on the brake (not shifted into neutral or park) - the engine starts kinda "chugging" and hte car vibrates a little. Not bad, but certainly rougher than the usual "I can't even tell the car is running" smoothness. My AC is on, working great, usually on Recirculate. Not high fan speed, tho.
i've tried turning off the AC/fan, and that seems to help a little, but not sure if it's the problem. usually by the time i start to notice it, the light turns green.
Oh, and i tend to be using Eco Mode. not sure if that matters.
so