Hi everyone, I've been experiencing a strange issue in the last few weeks. The truck will not move when i remove my foot from the brake while in gear from a stop, in forward or reverse. It also drives sluggishly, although not exaggerated. It almost seems as if the parking brake is partially engaged. I've also put the truck in neutral on my sloped driveway and it hardly rolled. 2013 with 80k miles. Transmission fluid changed at 70 with larger cooler installed. Any help would be greatly appreciated!