I have a 2014 energi. I wonder if this normal interaction between ice and EV is what I’m experiencing. For the past year at freeway speeds I hear a sound like I’m accelerating with increasing rpm but no acceleration happens. It occurs every 10 min on average. Improved when the transmission fluid topped off but now happening again. It’s now at the ford dealership and they have found nothing wrong and have driven it 60plus miles. Even on the freeway. Any ideas what my sound may be? I’ve driven the car since 2015 and it is a new sound . Thanks
